Not sure what talks to go to, just check the short summary of each talk on the hyperlinks People/ Pathway/ Policy/ Table of Contexts Day 1-Policy Morning Day 1 Morning Sessions (12.00-12.50) ................................................ 15 Parallel A: Air Quality; Co-Benefits-Room G01 .................................... 15 The impacts of policies to meet the UK climate change act target on air quality -an explicit modelling study ..................................................... 16 Air quality co-benefit evaluation of China’s carbon peaking effort based on China-MAPLE model ....................................................................... 17 Day 1 Morning Sessions (12.00-12.50) ................................................ 18 Parallel B: Water Land Energy NEXUS-Room G02................................ 18 Global freshwater demand for electricity generation to 2100 under low-carbon scenarios .......................................................................... 19 Advanced stochastic optimization modeling of the water-energy-food nexus for robust energy and agricultural development: Coal mining industry in Shanxi province, China....................................................... 20 Day 1 Morning Sessions (12.00-12.50) ................................................ 21 Parallel C: Energy System Innovation-Room G03 ................................ 21 The Political Economy of Energy Innovation ........................................ 22 Optimal international technology cooperation for the 2degree target ............................................................................................................ 23 Day 1 Morning Sessions (12.00-12.50) ................................................ 24 Parallel D: Power System Pathways-Room G04 ................................... 24 Nuclear off or on? The impact of nuclear power generation on electricity wholesale prices in a small, open economy-evidence of nuclear power plants’ restart in Belgium............................................. 25 Integration of VRE in the Nordic Energy System.................................. 26 Day 1 Morning Sessions (12.00-12.50) ................................................ 27 Parallel E: Post Paris Pathways-Room G05 .......................................... 27 On the way to a decarbonized world: .................................................. 28 An analysis of the Paris climate agreement with TIAM-FR ................... 28 Assessing the ambition level of INDCs target of US, EU, China and India .................................................................................................... 29 Day 1-Policy Afternoon Day 1 Afternoon Sessions (14.00 -15.15)............................................. 30 Parallel A: Air Quality; Co-Benefits-Room G01 .................................... 30 Assessing Health Externalities of Fossil Fuel Power in Taiwan .............. 31 Up in the Air: A framework for quantifying the co-impacts of energy sector decarbonisation on outdoor air pollution ................................. 32 Is energy transition beneficial to sectors with high employment content? An input-output analysis for France ................................. 33 Day 1 Afternoon Sessions (14.00 -15.15)............................................. 34 Parallel B: Bioenergy Pathways-Room G02.......................................... 34 Bioenergy as a Potential to Avoid Early Phase Out of Stranded Assets 35 Assessing the long-term potential of bioenergy in electricity, heat and grid balancing markets: case study for Switzerland ............................. 36 Evaluating the impact of bioenergy emission accounting methodology in energy system decarbonisation pathways to 2050 using a scenario approach: A case study of UK .............................................................. 37 Day 1 Afternoon Sessions (14.00 -15.15)............................................. 38 Parallel C: Decarbonisation Pathways-Room G03................................ 38 Regional Climates, Impacts, and strategic SRM .................................. 39 Offshore CCS and Ocean Acidification: A Global Long-Term Probabilistic Cost-Benefit Analysis of Climate Change Mitigation ....... 40 Long-term dynamics of technological change in mitigation scenarios 41 Day 1 Afternoon Sessions (14.00 -15.15)............................................. 42 Parallel D: Macro & Social Economic Impacts-Room G04.................... 42 Economic Structural Change as an Option for Mitigating the Impacts of Climate Change ................................................................................... 43 The Deployment of Low Carbon Technologies in Energy Intensive Sectors: A GCE Analysis for Europe, China and India ........................... 44 Day 1 Afternoon Sessions (14.00 -15.15)............................................. 45 Parallel E: Post Paris Pathways-Room G05 .......................................... 45 Transparency and Comparability of the INDCs — Results from the WITCH model ..................................................................................... 46 Equitable burden sharing: ........................................................ 47 Modelling global macroeconomic impacts of the carbon constrained energy system using etsap- tiam-macro ................ 47 Achieving net-zero emissions: reframing national targets in the postParis Agreement era ............................................................................ 48 Day 1-Policy Late Afternoon Day 1 Late Afternoon Sessions (15.45 -17.00) ..................................... 49 Parallel A: Residential Energy Efficiency-Room G01 ............................ 49 The Adaptation of the US Residential Sector to Global Warming ....... 50 The price of energy efficiency in the Spanish housing market ............. 51 Residential energy efficiency and European carbon policies. A CGEanalysis with bottom-up information on energy efficiency technologies ............................................................................................................ 52 Day 1 Late Afternoon Sessions (15.45 -17.00) ..................................... 53 Parallel B: Water Energy Land Nexus-Room G02................................. 53 Modelling the competition for land: the ............................................ 54 Food-Energy nexus in Ireland.............................................................. 54 Water Balance Effects of Domestic Agricultural Land Use and Management Shifts Due to U.S. Biofuel Policies ............................... 55 SUSTAINABLE FOREST-BASED BIOENERGY IN EURASIA ....................... 56 Day 1 Late Afternoon Sessions (15.45 -17.00) ..................................... 57 Parallel C: Decarbonisation Pathways-Room G03................................ 57 Carbon counterfactuals – Proximity-based synthetic controls for CO2 emission trajectories ........................................................................... 58 Pathways to deep decarbonization in Italy .......................................... 59 Integrated Assessment of the Prospects for Hydrogen Technology through 2100 using a Regionally Disaggregated DNE21.................. 60 Day 1 Late Afternoon Sessions (15.45 -17.00) ..................................... 61 Parallel D: Marco and Social Impacts-Room G04................................. 61 Long-term macroeconomic impact of US unconventional Oil and Gas production: a general equilibrium perspective................................. 62 Intergenerational discounting with ..................................................... 63 intergenerational inequality in consumption and the environment .... 63 Day 1 Late Afternoon Sessions (15.45 -17.00) ..................................... 64 Parallel E: Sustainable Development-Room G05 ................................. 64 Who benefits from infrastructure development through carbon pricing? - Insights from Nigeria............................................................ 65 Compatibility of the se4all energy efficiency objective with renewable energy, energy access, and climate mitigation targets ....................... 66 Climate resilience and reserves in the developing world .................... 67 Day 2-Pathways Morning Day 2 Morning Sessions (11.30-12.45) ................................................ 68 Parallel A: Modelling Uncertainty-Room G01 ...................................... 68 New methodological approach for planning cities sustainable and resilient energy futures – the case of the InSMART project .................. 69 The Use of Bottom-up Optimisation Models in Different Modes for Analysing the Transition to Sustainable Urban Areas .......................... 70 From Shared Socio-Economic Baseline Assumptions to CO2 Fossil Fuels Emissions ............................................................................................. 71 Day 2 Morning Sessions (11.30-12.45) ................................................ 72 Parallel B: Environmental Taxes, Trade and Markets-Room G02......... 72 Blending Under Uncertainty: Insights from the Biofuels Industry ....... 73 Interaction between CO2 emissions trading and renewable energy subsidies under uncertainty: feed-in-tariffs as a safety net against over allocation ............................................................................................. 74 Day 2 Morning Sessions (11.30-12.45) ................................................ 75 Parallel C: Decarbonisation pathways- G03 ......................................... 75 U.S. Emissions and Technology Pathways toward 2050 Goals: The Role of Temporal Flexibility ......................................................................... 76 IMPACTS OF FOSSIL FUELS EXTRACTION COSTS AND CARBON PRICING ON ENERGY EFFICIENCY POLICIES........................................................ 77 The role of direct air capture in achieving the Paris climate targets ............................................................................................... 78 Day 2 Morning Sessions (11.30-12.45) ................................................ 79 Parallel D: Power System Pathways - G04 ........................................... 79 Using resource based slicing to capture the intermittency of variable renewables .......................................................................................... 80 Hydropower Externalities: A Meta-Analysis .................................... 81 Day 2 Morning Sessions (11.30-12.45) ................................................ 82 Parallel E: Sustainable Development Pathways - G05.......................... 82 Cost and returns of renewable energy in Sub‐Saharan Africa. A comparison of Kenya and Ghana ......................................................... 83 An Indicative Analysis of Investment Opportunities in the African Electricity Supply Sector - Using TEMBA (The Electricity Model Base for Africa) .................................................................................................. 84 A climate resilient Africa - Calculating the cost of adaptation to climate change for the African Countries......................................................... 85 Day 2-Pathways Afternoon Day 2 Afternoon Sessions (14.00 -15.15)............................................. 86 Parallel A: Modelling Uncertainty -Room G01 ..................................... 86 An Alternate Methodology to Sensitivity Testing using Stochastic Modelling and the South African TIMES Model ................................... 87 Sensitivity of Modeling Results to Technological and Regional Details: The Case of Italy’s Carbon Mitigation Policy ........................................ 88 Adapting long-lived infrastructure to uncertain and transient change ............................................................................................................ 89 Day 2 Afternoon Sessions (14.00 -15.15)............................................. 90 Parallel B: Environmental Taxes, Markets and Trade- G02 .................. 90 Cost-Efficiency of the EU Emissions Trading Scheme (EU ETS): An ExPost Analysis ........................................................................................ 91 Environmental Policies that Maximise Social Welfare: The Role of Intergenerational Inequality ................................................................ 92 Day 2 Afternoon Sessions (14.00 -15.15)............................................. 93 Parallel C: Decarbonisation pathways - G03 ........................................ 93 CO2 Mitigation for Climate Risk Management .................................... 94 Modelling investment in upstream gas and implications for future supply curves under different demand scenarios ............................. 95 A multi-model method to analyse the economics of power-to-gas for renewable integration .......................................................................... 96 Day 2 Afternoon Sessions (14.00 -15.15)............................................. 97 Parallel D: Decarbonisation pathways - G04 ........................................ 97 The role of capital costs for decarbonizing the power sector .............. 98 Electricity grid and storage: complements or ..................................... 99 substitutes? ........................................................................................ 99 Evaluating the capacity of Integrated Assessment Models to represent system integration challenges of wind and solar power ................... 100 Day 2 Afternoon Sessions (14.00 -15.15)........................................... 101 Parallel E: Decarbonisation pathways - G05 ...................................... 101 Actors Behaving Badly: Modelling Non-Optimal Behaviour in Energy Transitions ......................................................................................... 102 Endogenizing Behavioral Effects and Infrastructure Investments in COCHIN-TIMES model and their Implications for Climate Policy Analysis .............................................................................................. 103 Time use, lifestyle and energy consumption: lessons from time use and budget data for French households ................................................. 104 Day 2-Pathways Afternoon Day 2 Late Afternoon Sessions (15.45 -17.00) ................................... 105 Parallel A: Modelling Uncertainty -Room G01 ................................... 105 Quantifying uncertainties influencing the long -term impacts of oil prices on energy markets and carbon emissions ............................ 106 Integrated Assessment of Uncertain Climate Catastrophes: What Does the Risk of Ice Sheet Disintegration Imply for Economic Analyses of Climate Policy?............................................................................................. 107 Modelling to generate alternatives: A technique to explore uncertainty in energy-environment-economy models ............................................................................................ 108 Day 2 Late Afternoon Sessions (15.45 -17.00) ................................... 109 Parallel B: Environmental Taxes, Trades and Markets -Room G02 .... 109 Modelling gas transport capacity investments with limited knowledge on future markets.............................................................................. 110 Consumption vs. Production Based CO2 Pricing Policies: Macroeconomic Trade-Offs and Carbon Leakage.............................. 111 On the Transition of Europe’s Power Market - Benefits of Coordination .......................................................................................................... 112 Day 2 Late Afternoon Sessions (15.45 -17.00) ................................... 113 Parallel C: Decarbonisation pathways -Room G03............................. 113 Environmental impacts of high penetration renewable energy scenarios for Europe ......................................................................................... 114 The sensitivity of system cost and wind power revenues to sub-optimal investment in wind power capacity .................................................... 115 Swedish climate policy in 2050 – Does the targets need to be defined now? ................................................................................................. 116 Day 2 Late Afternoon Sessions (15.45 -17.00) ................................... 117 Parallel D: Power System pathway- G04............................................ 117 Transformation of the European Union’s power sector to 2030 – Adding value to.................................................................................. 118 IRENA’s REmap 2030 project using a European Electricity Model ..... 118 The Economic Potential Value of Near- and Offshore Wind Energy: An Application to the Portuguese Western Coast ................................... 119 Day 2 Late Afternoon Sessions (15.45 -17.00) ................................... 120 Parallel E: Behavior and People - G05................................................ 120 Willingness to pay for solar home systems in Guinea Bissau: consumers’ preferences for different delivery models .......................................... 121 Incorporating Social Influence Effects into Global Integrated Assessment Models ........................................................................... 122 Day 3-People Morning Day 3 Morning Sessions (11.30-12.45) .............................................. 123 Parallel A: Transport Pathways -Room G01 ....................................... 123 Implications of Future Freight Demand Growth for Climate Change Mitigation.......................................................................................... 124 The role of carbon dioxide utilisation for transportation fuels in EU28 until 2050, an analysis using JRC-EU-times ........................................ 125 Modelling the role of Transport Infrastructure in a low‐carbon World .......................................................................................................... 126 Day 3 Morning Sessions (11.30-12.45) .............................................. 127 Parallel B: Environmental taxes, markets and trades -Room G02...... 127 Energy Security Scenarios of Future Europe. Assessing the impacts of societal processes.............................................................................. 128 Can Energy Efficiency Standards Reduce Prices and Improve Quality? Evidence from the US Clothes Washer Market ................................. 129 Unilateral emission pricing and OPEC’s behaviour ............................. 130 Day 3 Morning Sessions (11.30-12.45) .............................................. 131 Parallel C: Macro and Socio Economic Impacts -Room G03 .............. 131 The macroeconomic impact of climate change mitigation action in Latin America: a model comparison .................................................. 132 Modeling climate mitigation and economic growth in relation to employment and skills in South Africa ............................................. 133 Managing climate damages: exploring potential trade-offs .............. 134 Day 3 Morning Sessions (11.30-12.45) .............................................. 135 Parallel D: Power System pathways -Room G04 ................................ 135 Natural Gas Outlook for the Southern Cone: outcomes from an hourly basis TIMES natural gas & power model............................................ 136 Resource diversity impacts on storage in a high variable renewable power system .................................................................................... 137 Lifecycle Energy Demand and Indirect Greenhouse Gas Emissions of the Electricity Sector ......................................................................... 138 Day 3 Morning Sessions (11.30-12.45) .............................................. 139 Parallel E: Post Paris Pathways-Room G05 ........................................ 139 Exploring pathways for fulfilment of Kazakhstan’s INDC targets ....... 140 Nordic Energy Technology Perspectives ........................................... 141 Hybrid linking TIAM and IMACLIM-KLEM: Assessing technological mitigation pathways from INDCs towards 1.5C ............................. 142 Day 1 Morning Sessions (12.00‐12.50) Parallel A: Air Quality; Co‐Benefits‐Room G01 The impacts of policies to meet the UK climate change act target on air quality ‐an explicit modelling study Martin L. Williams1, Sean D. Beevers1, Melissa C. Lott2 and Nutthida Kitwiroon1 This paper presents a preliminary analysis of different pathways to meet the UK Climate Change Act target for 2050, of an 80% reduction in carbon dioxide equivalent emissions on a base year of 1990. Through the use of a soft-linked energy system optimisation model and chemical transport model, the work evaluated the air quality and public health impacts in these different pathways. It also provided additional insights in two major areas – the impact of increased spatial resolution and the relative role of air pollution that originates from both within and external to the energy sector. Currently used methods of evaluating the impact of decarbonisation pathways on air quality generally rely on the socalled ‘damage cost’ approach. In this approach a unit of air pollution emission reduction of an air pollutant is associated with an economic cost of the airquality disbenefit, based on a generic impact on air quality. Due to these generalisations, the specific location and arrangement of the sources and sensitive receptors is not considered. 1 Environmental Research Group, King’s College London, UK 2 Institute for Sustainable Resources, University College London, UK Air quality co‐benefit evaluation of China’s carbon peaking effort based on China‐MAPLE model Xi Yang, Fei Teng China University of Petroleum, Tsinghua University, Beijing, China [email protected] The paper focuses on these challenges and critical research topic, carried out the depth energy conservation research to fulfill the peaking target in or before 2030, and evaluate the co-benefit of carbon mitigation on the local pollutant reduction. Up to now, there are few studies evaluating the co-benefits and peaking target at the same time at full economy sectors level. The work is based on China-MAPLE model framework, partial equilibrium model with co-benefits evaluation on technological level. Based on the Integrated Framework and three scenarios study, three conclusions can be drawn. Key words: air quality co-benefit, China-MAPLE model, carbon peaking, local pollutant control. Day 1 Morning Sessions (12.00‐12.50) Parallel B: Water Land Energy NEXUS‐Room G02 Global freshwater demand for electricity generation to 2100 under low‐carbon scenarios Michela Bevione1,2, Laurent Drouet1,2 , Massimo Tavoni1,2 1 Fondazione Eni Enrico Mattei, 2 Centro Euro-Mediterraneo sui Cambiamenti Climatici Future water demand has been evaluated according to three different scenarios: the baseline scenario (business-as-usual assumptions throughout the century), a climate policy scenario (radiative forc- ing target at 3.7 W/m2 by 2100) and a climate policy with technological constraint scenario (radiative forcing target at 3.7 W/m2 by 2100 combined with nuclear phase-out after 2010). Results have been analyzed in terms of water withdrawal and consumption, and the influence of the global energy demand and the electricity generation mix on water demand has been assessed. Advanced stochastic optimization modeling of the water‐energy‐food nexus for robust energy and agricultural development: Coal mining industry in Shanxi province, China Junlian Gao1,Xiangyang Xu*1 , Gui-Ying Cao2, Yuri Ermoliev2, Tatiana Ermolieva2 , Arkadii Kryazhimskii2, Aline Mosnier2, Elena Rovenskaya2 , Cuiqin Su1, Qiang Wu1, Center for Resources and Environmental Policy Research, School of Management, China We discuss a modeling framework able to carry out an integrated systems analysis of interdependent energy-food-water-environmental systems while accounting for the competition to those systems posed by restricted natural resources under inherent uncertainties and systemic risks. The case study focuses on developments of coal industry in water-scarce regions of China. Coal is the main energy source in China responsible for country’s energy security. However, coal-based industries consume large quantities of water, what exacerbates the problem of scarce water resources. The model accounts for water consumption by various coal mining, processing and conversion technologies, as well as water and land requirements by different crops and management systems. Uncertain water supply and demand require robust solutions that would ensure demand-production balances and other (environmental, social) constraints in all scenarios. Day 1 Morning Sessions (12.00‐12.50) Parallel C: Energy System Innovation‐Room G03 The Political Economy of Energy Innovation Insights on the past trends and determinants of energy innovation are essential to set the basis for efficient and effective climate and energy policies in the coming years. Yet, the understanding of energy-related innovation dynamics and in particular of the political economy of energy innovation, is still incomplete. This paper collects and harmonizes data on energy innovation and environmental policy across countries and empirically investigates the effects of environmental policy, institutions, political orientation, and lobbying on the incentives to innovate in the energy sector. Our results suggest that all these factors affect the incentives to devote resources to energy R&D and to create new clean and energy-efficient technologies. Specifically, we conclude that political economy factors may act as barriers even in the presence of stringent environmental policy. This implies that, in order to support the move towards a greener economy, countries should combine environmental policy with a general strengthening of institutional quality and consider the influence of government’s political orientation on environmental policies as well as the implications of the size of energy intensive sectors in the economy. Keywords: Energy Innovation, Environmental Policy, Patents, Political Economy Optimal international technology cooperation for the 2degree target Anselm Schultes∗,†, Marian Leimbach‡, Gunnar Luderer‡, Robert C. Pietzcker Lavinia Baumstark‡, Nico Bauer‡, Elmar Kriegler‡, Ottmar Edenhofer‡†§ Research on low-carbon transformation pathways has focused on carbon pricing as a means for climate stabilization. By contrast, technology policies remain the more prominent national climate policy instruments: renewable energy subsidies amount to more than US$100 billion per year globally – more than twice the value of priced carbon. Given technology spillovers and global learning effects it remains unclear how technology policies can be coordinated internationally as part of climate stabilization policy. Here we show an economic rationale to include an international technology protocol alongside car- bon pricing. Cumulative low-carbon subsidies of more than US$1 trillion from 2020 until the end of the century mainly support solar power and advanced car technologies. Keywords: climate change mitigation; technology subsidies; endogenous growth; optimal policy instruments; learning-by-doing Day 1 Morning Sessions (12.00‐12.50) Parallel D: Power System Pathways‐Room G04 Nuclear off or on? The impact of nuclear power generation on electricity wholesale prices in a small, open economy‐evidence of nuclear power plants’ restart in Belgium D. Devogelaer, Federal Planning Bureau, BAEE Board Member, [email protected], +3225077438 In this paper, the restart of the three reactors is scrutinized. Publicly available micro-data from a variety of sources is used to examine the impact of the restart on different market outcomes. We observe that in the period following the restart, wholesale prices plummet. This phenomenon is not restricted to the day ahead market, it is also most obvious in the forward market. Next to this empirical evidence, the optimisation tool Crystal Super Grid is used to estimate the effect of the resumed availability of the three reactors on several indicators characterising the Belgian and European power landscape. Integration of VRE in the Nordic Energy System Kenneth Karlsson1*, Klaus Skytte1, Marie Münster1, Cristian Cabrera1, János Hethey2, Anders Kofoed- Wiuff2, Nina Dupont2, Markus Wråke3, Tiina Koljonen4, Kari Espegren5, Benjamin Smith6 1 DTU Management Engineering, 2 Ea Energy Analyses, 3 IVL Sweden, 4 VTT Finland, 5 IFE Norway, 6 Nordic Energy Research * Corresponding author: [email protected], Phone: +4521328733 This abstract focus on integration of variable renewable energy (VRE) in the Nordic energy system and is based on findings in the chapter on Electricity System Integration in the Nordic Energy Technology Perspectives 2016 (NETP 2016) [1] report. In the NETP from 2013 [2] the Nordic carbon neutral scenario was created. The definition is an 85% reduction in GHG emissions from all sectors, which means that the power and heating sector will stop emitting CO2. In NETP 2016 [1] we are continuing with this scenario, but digging deeper into what it takes to reach it. The modelling framework are linked to the IEA's global ETP model (2DS) where the Nordic countries are separate regions. Day 1 Morning Sessions (12.00‐12.50) Parallel E: Post Paris Pathways‐Room G05 On the way to a decarbonized world: An analysis of the Paris climate agreement with TIAM‐FR Sandrine SELOSSE1, Seungwoo KANG2 and Nadia MAÏZI3 1 Sandrine SELOSSE, MINES ParisTech, PSL Research University, CMA ‐ Centre for Applied Mathematics, France, +33 493 678 917, sandrine.selosse@mines‐ paristech.fr 2 Seungwoo KANG, MINES ParisTech, PSL Research University, CMA ‐ Centre for Applied Mathematics, France, +33 497 157 093, seungwoo.kang@mines‐paristech.fr 3 Nadia MAIZI, MINES ParisTech, PSL Research University, CMA ‐ Centre for Applied Mathematics, France, +33 497 157 079, Keywords: Global energy system, GHG mitigation targets, long‐term modeling, TIAM‐FR, Paris climate Agreement We analyze a combination of these scenarios to discuss decarbonized pathway and the technological solutions to climate issues. Our analysis of the scenario results then focuses on the effects on the level of GHG emissions and the carbon abatement costs associated with the different GHG reduction targets for regions (developed, fast developing or developing countries) with national focus. Assessing the ambition level of INDCs target of US, EU, China and India CUI Xueqin1, WANG Ke1, ZOU Ji1 1. Renmin University of China, Zhongguancun Avenue, 100872, Beijing ,China The “fair share” of the emission quota to regions and countries is one of the key issues in designing international climate regime. A large number of literatures has addressed this allocation issue. Höhne et al. [6] conducted a survey of over 40 studies with a wide range of effort sharing approaches which reflect a wide spectrum of equity principles, such as equal emissions per capita, cost- effectiveness of mitigation, linking mitigation requirements with capability and historic responsibility, etc. [7-12] Yet there few analyses on the trade-off between ambition and fairness in the context of INDCs. Furthermore, most of the studies are built on one or a few equity principles which cannot reflect a comprehensive and balance point of view of both developing and developed countries. This study developed an integrated framework of equitable allocation of future carbon budget based on a wide spectrum of equity principles, incorporating dynamic measurement of these equity principles, then assessed the ambition level of INDC of four largest emitters, namely USA, EU, China and India Day 1 Afternoon Sessions (14.00‐15.15) Parallel A: Air Quality; Co‐Benefits‐Room G01 Assessing Health Externalities of Fossil Fuel Power in Taiwan Meng-Ying Lee1*, Meng-I Liao2, Pei-Hao Li1,3, Ming-Lung Hung1, Hwong-wen Ma2 Taiwan is now facing challenges on local air quality control and debates on potential local health impacts from fossil fuel energy development. A tool to evaluate the local health impacts for energy development plans is crucial for policy making. However, there is no integrated assessment tool for evaluating potential external health cost of energy development scenarios with a comprehensive range of pollutants and health impacts in Taiwan. Here we developed a health impact assessment module integrated with the TIMES energy technology model for energy deployment planning with comparative evaluation of health impacts under different energy development scenarios for Taiwan. Key words: external cost; health impact; integrated modeling; fossil fuel power plants; energy planning Up in the Air: A framework for quantifying the co‐impacts of energy sector decarbonisation on outdoor air pollution Melissa C. Lotta ([email protected]), Steve Pyeb ([email protected]), Birgit Faisb ([email protected]), Paul Doddsa,b ([email protected]) aUCL Keywords Energy systems modelling, air pollution, decarbonisation, co-impacts, TIMES, UKTM, policy assessment Much of the existing analysis on the potential co-impacts of climate change mitigation efforts on other air pollutants uses exogenous calculations (for example, Jensen et al., 2013a and Williams, 2007). To date, no peer-reviewed papers have been published on a methodology that endogenizes these air pollution co-impacts into an energy systems optimisation model. Given that these optimisation models are central to energy system policy assessment, the addition of other air pollutants could provide valuable insights on the trade-offs and synergies between climate and air quality interventions. This research added an air pollution emissions database for particulate matter (PM10 and PM2.5), nitrogen oxides (NOx), sulfur dioxide (SO2), ammonia (NH3), and non-methane volatile organic compounds (NMVOCs) to an existing bottom-up energy systems optimisation damage cost values. model for the United Kingdom (UKTM), including Is energy transition beneficial to sectors with high employment content? An input‐ output analysis for France Quentin Perrier, Philippe Quirion Employment has been a key issue of the public debate on energy transition in France. We develop an original methodology, based on input-output analysis, to compare the employment content of each economic sector to the national average, and break down the differences into five components: final consumption import rates, intermediate consumption import rates, taxes and subsidies, salary levels and labor share in value added. We then estimate the employment content and the greenhouse gases (GHG) content of all French economic sectors in 2010, in order to study intersectoral substitutions stemming from an energy transition. Our results show that employment content variations are explained, in order, by salary levels, final goods import rates, labor share in value added, intermediate consumption import rates, and finally taxes and subsidies. In addition, we find that sectors with high GHG content and low employment content (power production, heavy industries) are covered by the EU ETS, while those with both high employment and GHG transport) are not. content (agriculture, food processing and Concerns about employment impacts might be part of the explanation. Day 1 Afternoon Sessions (14.00‐15.15) Parallel B: Bioenergy Pathways‐Room G02 Bioenergy as a Potential to Avoid Early Phase Out of Stranded Assets V. Keller1*, B. Lyseng1, J. English1, K. Palmer-Wilson1, T.Niet1, 2, I. Moazzen1, B. Robertson1, P. Wild1, A. Rowe1 1 Department of Mechanical Engineering, Institute for Integrated Energy Systems University of Victoria, Canada 2 British Columbia Institute of Technology * Correspondence to V. Keller - 1 (250) 472 -4022 [email protected] The current work examines the possibility of extending lifetime of stranded coal fired power plants through retrofits to burn biomass. Logging residue is explored as a fuel source for bioenergy plants due to its climate change mitigation potential. Based on levelized cost of electricity (LCOE), bioenergy at different fuel costs is compared to other new generators to better understand economic conditions of biomass derived power. We further analyze changes in prices of natural gas and market incentives such as carbon taxes and renewable energy credits (RECs). We further study the province of Alberta (AB), Canada due to its newly announced ‘Climate Leadership Program’ as an example of how carbon taxes and RECs may help bioenergy penetration. Our results suggest that while economic incentives such as carbon taxes and RECs may help the penetration of bioenergy, it highly depends on natural gas prices. Assessing the long‐term potential of bioenergy in electricity, heat and grid balancing markets: case study for Switzerland Evangelos Panos 1, Paul Scherrer Institute, e-Mail: [email protected] Kannan Ramachandran, Paul Scherrer Institute, e-Mail: [email protected] The Swiss Energy Strategy targets to greatly reduce per capita energy consumption, to decrease the share of fossil energy and to replace nuclear electricity generation by gains in efficiency and renewable energy sources. We assess the role of domestic biomass in meeting these objectives and we evaluate the prospects of biogenic technologies in electricity, heat and ancillary services markets. To this end, we quantify several “what- if” scenarios by applying a cost-optimisation bottom-up model, with detailed representation of the above three markets, as well as biomass production and use pathways. We find that the biogenic CHP technologies constitute a key technology for increasing biomass penetration in stationary applications. The analysis shows that their role increases when natural gas prices become high, or climate policies are stringent. However, due to the limited domestic biomass resources, they cannot be considered as game changers, but they mostly complement other assets in heat, electricity and grid ancillary services markets such as heat pumps, new renewable sources and hydropower. Evaluating the impact of bioenergy emission accounting methodology in energy system decarbonisation pathways to 2050 using a scenario approach: A case study of UK Nagore Sabio1, Paul Dodds UCL Energy Institute, 14 Upper Woburn Place, WC1H 0NN, London, UK Bioenergy, aside from being the oldest energy resource, poses several advantages over other alternative energy vectors. First, it allows to make use of existing energy infrastructure, its knowledge basis has similarities to fossil fuels due to its organic carbon-based composition and provides additional exploitable synergies with different energy vectors and technologies such as renewable electricity, hydrogen and CCS. Nevertheless, biomass as a resource poses diverse challenges. First, the diversity of the resource itself, ranging from forest wood to wastes, makes it difficult to assess its availability (Slade et al.,2014), standardise the value chain and in turn evaluate its environmental impact. Second its international character and competing uses pose challenging political debates and add complexity to the value chain. All these uncertainties and complexities demand for more research and holistic approaches for bioenergy impacts assessment. Day 1 Afternoon Sessions (14.00‐15.15) Parallel C: Decarbonisation Pathways‐Room G03 Regional Climates, Impacts, and strategic SRM Johannes Emmerling† and Massimo Tavoni‡ Although the potential of geoengineering to substitute or complement mitiga- tion measures has been mostly assessed in the global context, its impacts on the strategic incentives in the context negotiations are particularly in- teresting. This of global climate paper aims at understanding the implications of geoengineering on the regional economic incentives to participate in an international climate deal. To this end, we study regional strategic incentives using a game-theoretic integrated assessment model which features mitigation and adaptation strategies, enriching it with a geoengineering strategy. Moreover, we integrate regionspecific impacts based on Burke et al. (2015) in an optimization framework with regional climates to account for heterogeneity in temperature and SRM impacts. We find differen- tiated regional or country incentives for SRM, and substantial differences between globally optimal and unilaterally non-cooperative SRM and mitigation strategies. We extend the analysis to allow for adaptation which mitigates these differences. Offshore CCS and Ocean Acidification: A Global Long‐Term Probabilistic Cost‐Benefit Analysis of Climate Change Mitigation Reyer Gerlagh and Bob van der Zwaan Although aspects of the technical and economic, as well as the legal, political and public acceptance dimensions of CO2 capture and storage (CCS) still require deeper understanding, CCS technology could, and perhaps needs to, play a major role in curbing global CO2 emissions. The Sleipner storage project is a good and iconic example, as at this site since 1996 CO2 has been safely stored in a geological formation deep under the North Sea with quantities of about a million ton of CO2 per year. Likewise, in the Barents Sea at the Snøhvit storage site CO2 has been successfully and securely stored under the seabed since 2008. The findings of the ECO2 project (“Sub-seabed CO2 Storage: Impact on Marine Ecosystems”, funded by the European Commission) confirm that to date CO2 has been safely stored at these two locations. One can thus conclude that contained storage of CO2 in the underground appears possible (ECO2, 2015), but that claims on this subject matter need to be made carefully: much more knowledge still needs to be developed about the potential short- and long-term impacts of CO2 storage on marine ecosystems. Long‐term dynamics of technological change in mitigation scenarios Charlie Wilson Tyndall Centre for Climate Change Research, University of East Anglia, UK This paper analyses long-term diffusion dynamics of electricity generation technologies in a set of nine global energy-economy models. Technology diffusion dynamics are expressed in time series of cumulative total capacity, and are characterised in terms of form, duration and extent. Dynamics are analysed at the level of six resource-based technology 'families', as well as across the portfolio as a whole. There are three generalisable findings from across a set of technologies, models, and scenarios. First, the majority of long-term diffusion dynamics are described by logistic growth. Around two in three time series of cumulative capacity are logistic in form; of the remainder, around half are still exponential in 2100. This is broadly consistent for both mitigation (2oC stabilisation) and baseline scenarios. Day 1 Afternoon Sessions (14.00‐15.15) Parallel D: Macro & Social Economic Impacts‐ Room G04 Economic Structural Change as an Option for Mitigating the Impacts of Climate Change Alexander Golub and Michael Toman World Bank Development Research Group Key words: Climate change, uncertainty, structural changes, real options Improving the resilience of the economy in the face of uncertain climate change damages involves similar tradeoffs. In particular, making the economy more resilient involves irreversible investments to scale up new technologies that are less vulnerable to the effects of climate change. Building up such capacity provides options for reducing losses of output and welfare if irreversible climate change damages turn out to be more severe than expected. The benefit of having such options needs to be balanced against the up-front cost of scaling up a climate change-resilient technology that is potentially less productive than incumbent technologies for production. One could wait for the cost of such a technology to fall from further R&D. However, the advantage of postponing the initial scaleup cost has to be compared to the cost of not having earlier access to the new technology in the event of more severe than expected climate change impacts. The latter includes the welfare cost of diverting consumption to scaling- up the new technology with diminished production possibilities, in the wake of the climate change impacts. The Deployment of Low Carbon Technologies in Energy Intensive Sectors: A GCE Analysis for Europe, China and India Stefan Nabernegg1*, Birgit Bednar-Friedl1,2, Fabian Wagner3,4, Janusz Cofala3, Thomas Schinko1,3, Yadira Mori-Clement1 1 Wegener Center for Climate and Global Change, University of Graz, Austria 2 Department of Economics, University of Graz, Austria 3 International Institute for Applied Systems Analysis, Laxenburg, Austria 4 Princeton University, Andlinger Center for Energy and the Environment, USA Keywords: energy intensive industry, decarbonization; CGE analysis; international trade; The potential for cost savings is found to be larger for China and India relative to Europe because energy efficiency measures lead to larger fuel costs savings and smaller investment costs. Across energy-intensive industries, the potential for cost-effective efficiency measures is found to be largest in the iron and steel sector. In Europe, output drops strongest for energy carriers, but also for pulp and paper and chemicals, while output of iron and steel, electricity and nonmetallic mineral products increases. The deployment of low carbon technologies improves the competitiveness of Indian and Chinese energy intensive industries and increases imports to Europe which is only partly counterbalanced by trade flows in non-energy intensive sectors. Due to considerable country differences, a substantial gain - in terms of carbon prices and aggregate output - can be realized when countries decarbonize jointly. carbon leakage; Day 1 Afternoon Sessions (14.00‐15.15) Parallel E: Post Paris Pathways‐Room G05 Transparency and Comparability of the INDCs — Results from the WITCH model Keigo Akimoto3, Joseph Aldy4, Lara Aleluia Reis∗1,2 , Carlo Carraro1,2,5 , William Pizer6, Fuminori Sano7, and MassimoTavoni1,2,8 1Fondazione Eni Enrico Mattei, Italy 2Euro-Mediterranean Center on Climate Change, Italy 3Research Institute of Innovative Technology for the Earth, University of Tokyo 4Harvard University, Resources for the Future, and National Bureau of Economic Research 5University of Venice 6Duke University, Resources for the Future, National Bureau of Economic Research 7Research Institute of Innovative Technology for the Earth 8Politecnico di Milano, Department of Management and Economics In this paper, we discuss the case for economic analysis of both pledges and outcomes in order to produce a consistent set of metrics for comparison. We use the WITCH integrated assessment model to produce such metrics from the widely varying set of national pledges under the Paris Agreement. Our results show a dif- ferentiated commitment across countries where emission reductions and mitigation cost are generally larger for wealthier countries Equitable burden sharing: Modelling global macroeconomic impacts of the carbon constrained energy system using etsap‐ tiam‐macro James Glynn 1,2,*, Socrates Kypreos1,2,3, Professor Brian Ó Gallachóir1,2 University College Cork, IRELAND 3 c Paul Scherrer Institute, Villigen, Switzerland The analysis in this paper focuses on equitable burden sharing and explores cumulative historical and future emissions pathways to assess potential equitable and efficient mitigation costs. Least cost efficient emissions are compared burden sharing rules, including contract and convergence equalisation of emissions per capita (Bows and Anderson, 2008), equalisation of regional GDP loss, compensation for energy cost increases in Least Developed Countries (LDCs), full compensation for GDP loss in LDCs and two interpretations of the “Brazil Proposal” of historical cumulative responsibility for temperature forcing for 2C (UNFCCC, 1997). As with other studies we outline potentially equitable regional cumulative emissions budgets (Raupach et al., 2014), emission peaking dates and the distribution of energy system costs. Achieving net‐zero emissions: reframing national targets in the post‐ Paris Agreement era Steve Pyea, Francis G. N. Lia, Birgit Faisa, James Pricea a UCL Energy Institute, Central House, 14 Upper Woburn Place, London, WC1H 0NN, United Kingdom This paper explores a large ensemble of net-zero pathways for the UK that extend beyond 2050, to assess feasibility of different carbon budget levels at the national scale, and whether the current policy framework is adequate. While taking the UK example, the findings of this paper are pertinent to other economies exploring long term decarbonisation objectives. The paper finds that formulating domestic climate policy based on a 2050-only target can lead to a gross underestimation of the challenge demanded by the science, consequently setting a pathway for energy system decarbonisation with insufficient ambition. Of strong relevance to the emerging policy discussion, it also questions the prospects of achieving a 1.5°C stabilisation target, given the radical system change over a very short time period. A 2°C budget level remains extremely challenging, and requires negative emission technologies to reach netzero. Day 1 Late Afternoon Sessions (15.45‐17.00) Parallel A: Residential Energy Efficiency‐Room G01 The Adaptation of the US Residential Sector to Global Warming François Cohena, Matthieu Glachantb and Magnus Söderbergb a: Grantham Research Institute, London School of Economics and Political Science, London, United Kingdom. b: MINES ParisTech, Paris, France. Good-quality homes will be necessary to protect households from unusually elevated temperatures caused by climate change. This paper assesses the economic cost of adaptation in dwellings through home improvements and changes in energy consumption. Using household-level data from the U.S. and the output of a general circulatory climate model, we estimate the adaptation cost per household to be low: minus 3950 $ by 2080-2099 under the A2 scenario of medium to high GHG emissions released in the atmosphere. This is because the installation and more intensive use of additional air-conditioners are partially offset by lower needs for space heating. These findings deliver an optimistic message on the adaptive capacity of US houses. The price of energy efficiency in the Spanish housing market Keywords: Energy, Housing, Energy Performance Certification, Spain, Hedonic pricing The housing sector is a substantial consumer of energy, and therefore a focus for energy savings efforts. The Energy Performance of Buildings Directive (EPBD), introduced in 2002 and revised in 2010, is the key instrument to increase the energy performance of buildings across the European Union. Following the implementation of the EPBD into Spanish law, all properties offered for sale or rented out in Spain are required to have an Energy Performance Certificate (EPC). Given that this is a recently introduced regulation, unlike other European housing markets, the Spanish one lacks market data on energy efficiency (EE) labels and their impact on housing price. To overcome this gap, we determine the EE ratings of a sample of 1,507 homes across Spain on the basis of information collected previously through household surveys. This allowed us to answer the question of whether or not, and to what extent, Spanish housing markets capitalise the value of EE. We apply the hedonic−price technique and observe that more energy efficient dwellings have a price−premium between 5.4% and 9.8% compared to those with the same characteristics but lower EE level. Residential energy efficiency and European carbon policies. A CGE‐analysis with bottom‐ up information on energy efficiency technologies Brita Bye, Taran Fæhn and Orvika Rosnes Keywords: Carbon policies, Energy efficiency policies, General Equilibrium analysis, Rebound effects While the introduction and reformation of climate policy instruments take place rapidly in Europe, the knowledge on how the instruments interact lags behind. In this paper we analyse different interpretations of the 2030 climate policy goals for residential energy efficiency and how they interact with targets for restricting CO2 emissions. We focus on Norway, whose climate and energy policies are integrated with those of the EU. As we account for investment costs of improving energy efficiency, we find substantial welfare costs of energy efficiency policies, particularly when interacting with carbon pricing. Rebound effects within households are small, but economy-wide indirect rebound is significant because energy-intensive, trade-exposed (EITE) industries expand. As residential energy use consists mainly of carbon-free electricity, this expansion of EITE- industries leads to increased total CO2 emissions. Day 1 Late Afternoon Sessions (15.45‐17.00) Parallel B: Water Energy Land Nexus‐Room G02 Modelling the competition for land: the Food‐Energy nexus in Ireland Alessandro Chiodi, University College Cork, Ireland Trevor Donnellan, Teagasc, Ireland James Breen, University College Dublin, Ireland J.P. Deane, University College Cork, Ireland Brian Ó Gallachóir, University College Cork, Ireland This paper uses a multi-model approach (an energy systems model - Irish TIMES, and an agricultural model – FAPRI-Ireland) to review and compare different perspectives on agriculture and energy in Ireland, and develops a methodology to assess via scenario analysis integrated perspectives on the implications for land-use competition in delivering food security and climate mitigation for Ireland. The scenarios explore how, under different GHG mitigation trajectories for 2050, energy crops compete with agri-food sectors. The results i) presents perspectives and outlooks of both agricultural and energy systems, ii) evaluates the role of bioenergy commodities; iii) quantifies the impacts in terms of domestic land usage; iv) investigates implications for limited land-use availability; v) discusses the economic impacts of different mitigation future Water Balance Effects of Domestic Agricultural Land Use and Management Shifts Due to U.S. Biofuel Policies Jacob Teter1*, Sonia Yeh1,2, Madhu Khanna3, Xiaoguang Chen4, Göran Berndes2 1 Institute of Transportation Studies, University of California, Davis. Davis, CA 95616 et al Biofuels policies induce land use changes, including cropland expansion and crop switching, and altered water and soil management practices. We combine an agricultural-energy economic model with a high-resolution crop-water modeling for U.S. major agricultural crops and potential cellulosic feedstocks to model the impacts on water balances in three alternative policy scenarios through 2030: a counterfactual ‘no biofuels policy’, a volumetric mandate (RFS), and a Low Carbon Fuel Standard (LCFS) incentivizing fuels based on their carbon intensities, resulting in less corn ethanol and greater proportions of biofuels from energy crops. We found RFS policy increases corn cultivation, though certain regions of the East, Midwest, and Corn Belt see net reductions in irrigation, while other regions see net increases in the Northern plains, Oklahoma, and North Dakota as crop production shifts. Crop-water modeling, Renewable Fuels Standard, National Low Carbon Fuel Standard, water use LCA, water footprinting, land use change SUSTAINABLE FOREST‐BASED BIOENERGY IN EURASIA F. KRAXNER1*, S. LEDUC1, S. FUSS2,1, D. SCHEPASCHENKO1,3, A. SHVIDENKO1,4 Ecosystems Services and Management Program (ESM), International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, 2361 Laxenburg, Austria. This study analyses the Russian forest biomass-based bioenergy sector. It is shown that presently – although given abundant resources – the share of heat and electricity from biomass is very minor. With the help of 2 IIASA models, future green-field bioenergy plants are identified in a geographically explicit way. Results indicate that by using only 3.3% of the total wood removals, twice as much heat and electricity than presently available from biomass could be generated. A multitude of co- benefits can be quantified for the socio-economic sector such as green jobs linked to bioenergy. The sustainable sourcing of woody biomass for bioenergy is possible as shown with the help of an online crowdsourcing tool for forest certification. Day 1 Late Afternoon Sessions (15.45‐17.00) Parallel C: Decarbonisation Pathways‐Room G03 Carbon counterfactuals – Proximity‐based synthetic controls for CO2 emission trajectories Alexander Radebach*,†,‡ Jan Christoph Steckel†,‡,§ César A. Hidalgo# In the context of climate change mitigation per capita CO2 emission levels are a key characteristic when comparing different countries’ contributions to global emissions. The countries frequently formulate reduction targets in terms of intertemporal changes, i.e., the reduction between some base year and another point in time. Clearly, this metric is insufficient when comparing different countries. In order to obtain a reliable baseline for the comparison of a country’s CO2 path this paper applies the recently proposed approach of synthetic comparatives. From structural similarity based on high-resolution export data we calculate proximities that allow selecting appropriate control groups. The members of this group then serve as regressors for the construction of a linear combination which mimics the historically observed CO 2 per capita path within some training period. Following that time window the synthetic comparative serves as a counterfactual to the historical trajectory. † Mercator Research Institute on Global Commons and Climate Change, Torgauer Straße 12-15, 10829 Berlin, Germany ‡ Technical University of Berlin, Straße des 17. Juni 145, 10623 Berlin, Germany § Potsdam Institute for Climate Impact Research, Telegraphenberg A31, 14473 Potsdam, Pathways to deep decarbonization in Italy Maria Gaeta1, Isabella Alloisio2, Enrica De Cian,2 Chiara Martini3, Ramiro Parrado2, Maria Cristina Tommasino1, Maria Rosa Virdis1. This paper contributes to the climate-policy discussion by focusing on the difficult challenges of dramatically reducing fossil fuel related emissions. Three alternative pathways to achieve deep decarbonization are examined, reducing Italian CO2 emissions by at least 40% in 2030 and 80% in 2050, compared to 1990, consistently with the IPCC goal of limiting the increase in global surface temperature to 2 degrees Celsius (°C). Italy has some specific features in its natural resource endowments, and its geographic, social, and economic factors. The country has historically experienced a higher share of gas and oil products, and a lower share of coal, in the energy mix compared to average EU levels. There are important hydro resources almost fully exploited, few areas with potential for wind energy, and lots of sunshine in the South. Italy heavily relies on imported fuels: about 80% of Italy’s energy used is imported. Integrated Assessment of the Prospects for Hydrogen Technology through 2100 using a Regionally Disaggregated DNE21 Seiya Endo*a, Yasumasa Fujiia, Ryoichi Komiyamab aDepartment of nuclear engineering and management, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan bResilience Engineering Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan * E-mail address: [email protected] This paper evaluates an economic viability of hydrogen technology in global energy market through 2100 employing a regionally disaggregated Dynamic New Earth 21 model, called DNE21. Hydrogen technology is gathering attention as one of effective countermeasures for tackling climate change issues. Hydrogen energy, however, is just a secondary energy carrier, and its effectiveness in energy system should be evaluated considering the whole lifecycle chain of hydrogen production, transportation and consumption. Therefore, energy modelling analysis, covering the whole stage of energy development and usage, potentially provides a useful information for the evaluation of the role of hydrogen energy. Day 1 Late Afternoon Sessions (15.45‐17.00) Parallel D: Marco and Social Impacts‐Room G04 Long‐term macroeconomic impact of US unconventional Oil and Gas production: a general equilibrium perspective. Florian LEBLANC† [email protected] This paper assesses the macroeconomic impact of long-term shale gas and light tight oil production in the United States. We endogenize those resources produc- tion within a Computable General Equilibrium (CGE) framework which technical inertias and short-term desiquilibrium of a second best world. Our scenarios find moderate and bounded GDP increases despite increasing unconventional resources production. Lower energy prices and energy imports needs creates long-term lock- ins which later on slow down GDP growth differential. In fact, an early higher refined oil dependency on the demand side face later on increased tensions on oil markets due to Middle East resource depletion. We study the tradeoff between long-term competitiveness and the real exchange rate appreciation caused by re- source production, and find little evidence of a positive effect on investment in the production of energy tradables goods. Keywords : Shale Computable general equilibrium model resources, intensive Competitiveness, Intergenerational discounting with intergenerational inequality in consumption and the environment It is now established that the consumption discount rate is determined by the growth of consumption multiplied by the elasticity of marginal utility, but the ever-increasing distributive concerns are rarely reflected in the liter- ature. Assuming a social welfare function with inequality aversion, we con- sider a consumption discount rate that can be decomposed into the growth effect and the intragenerational distribution effect. The framework is then extended to include population change; and inequality in the environment Keywords: Discounting; income distribution; intragenerational equity; cli- mate change Day 1 Late Afternoon Sessions (15.45‐17.00) Parallel E: Sustainable Development‐Room G05 Who benefits from infrastructure development through carbon pricing? ‐ Insights from Nigeria Ira Dorbanda, Michael Jakoba,b and Jan Christoph Steckela,b,c a Mercator Research Institute on Global Commons and Climate Change, Torgauer Str. 12-15, 10829 Berlin, Germany b Potsdam Institute for Climate Impact Research, Potsdam, Germany c Department Economics of Climate Change, Technische Universität Berlin, Key Words: Carbon Pricing; Fossil Fuel Subsidies; Infrastructure investments; Household data; Nigeria The distribution of tax payments as well as of infrastructure access gaps across income groups is estimated by combining an environmentally-extended input-output model with household survey data. In contrast to most developed country studies, we find that in Nigeria a carbon tax or reform of subsides would be progressive. Furthermore, access gaps impair primarily rural, lower income households. Hence, reforming the existing subsidy regime and / or levying carbon taxes in Nigeria do not only hold positive environmental effects; particularly when combined with targeted revenue recycling to close infrastructure access gaps both measures can have pro-poor distributional effects. Compatibility of the se4all energy efficiency objective with renewable energy, energy access, and climate mitigation targets Jay Gregg1, Olexandr Balyk1, Ola Solér1, Simone La Greca1, Cristian Hernán Cabrera Pérez1, Tom Kober2 1Systems Analysis, Technical niversity of Denmark 2Energy Research Centre of the Netherlands The objectives of the Sustainable Energy for All (SE4ALL), a United Nations (UN) global initiative, are to achieve, by 2030: 1) universal access to modern energy services; 2) a doubling of the global rate of improvement in energy efficiency; and 3) a doubling of the share of renewable energy in the global energy mix (United Nations, 2011; SE4ALL, 2013a). The purpose of this study is to determine to what extent the energy efficiency objective supports the other two objectives, and to what extent the SE4ALL objectives support the climate target of limiting the global mean temperature increase to 2° C over pre-industrial times. To accomplish this, pathways are constructed for each objective, which then form the basis for a scenario analysis using the Energy Technology System Analysis Program TIMES Integrated Assessment Model (ETSAP-TIAM). Climate resilience and reserves in the developing world Mark Howells - Raffaello Cervigni Kenneth Strzepek USA Jim Nuemann Royal Institute of Technology, Stockholm, Sweden - - World Bank, Washington, USA Massachusetts Institute of Technology, Cambridge, - Industrial Economics, Cambridge, USA An emerging body of work is constructing new combinations of applied analysis to understand and inform integrated development under a changing climate. A particular focus has been how, under a changing climate, to efficiently allocate land, energy, water and other resource to meet demands for crops, water- and energy-services. To ensure secure affordable supplies, it is finding that there is need for market harmonization; policy coherence; and new functional financial instruments. For the analytical community, the challenge is to further develop appropriately integrated planning tools. For the decision maker, in a developing country context the challenge is to develop tools that transcend or strengthen weak markets, policy and finance. And, do so in a tractable and implementable manner. Day 2 Morning Sessions (11.30‐12.45) Parallel A: Modelling Uncertainty‐Room G01 New methodological approach for planning cities sustainable and resilient energy futures – the case of the InSMART project De Miglio R.a, Chiodi A.a, Simoes S.b, Long G.c, Pollard M.d, Gouveia J.P.b, Gargiulo M.a, Giannakidis G.e a E4SMA S.r.l., Turin, Italy b CENSE, Faculdade Ciências e Tecnologia, Universidade Nova de Lisboa, c University of Nottingham, Nottingham, United Kingdom d Systra Consultancy, United Kingdom e Centre for Renewable Energy Sources and Saving (CRES), Athens, Greece This paper presents an innovative city planning approach developed within the EU FP7 project InSMART. It brings together four European municipalities – Evora (Portugal), Nottingham (UK), Trikala (Greece) and Cesena (Italy) –, academics and technical consultants in order to establish a common methodology for enhancing sustainable planning for both the current and future city needs through an integrative and multidisciplinary approach. The methodology develops and employs a number of tools to assess the optimum mix of medium term measures (up to 2030) for a sustainable energy future, addressing the efficiency of energy flows across various city sectors with regards to economic, environmental and social criteria and paving the way towards actual implementation of priority actions. This paper presents the key concepts around this methodology and some selected results of the project (still ongoing). The Use of Bottom‐up Optimisation Models in Different Modes for Analysing the Transition to Sustainable Urban Areas Arne Lind1, Kari Espegren1 1Institute for Energy Technology (IFE) P.O. Box 40, NO-2027 Kjeller, Norway Phone (+47) 92281635, Fax (+47) 63812905 E-mail: [email protected] Keywords: Urban en e rg y system; energy system model; scenario analysis;renewable energy; CO2-emissions In 2014, 54 per cent of the world’s population were living in urban areas. Globally, urbanisation is taking place rapidly, and sustainable development in urban settlements is therefore a challenge with increasing importance since urbanisation can cause problems such as transport congestion, lack of sufficient housing, and environmental degradation. The purpose of this paper is to demonstrate how bottom-up optimisation models (like e.g. TIMES) can be used to analyse how urban areas can develop sustainable energy systems for the future. From Shared Socio‐Economic Baseline Assumptions to CO2 Fossil Fuels Emissions Giacomo Marangoni et al. 1 Fondazione Eni Enrico Mattei (FEEM) and Centro Euro-Mediterrano sui Cambiamenti Climatici (CMCC), Italy; The goal of this analysis is to understand how the output of models, and in turn the resulting policy implications, depend on baseline assumptions, identifying the most influential uncertain sets of inputs and their interactions for different IAMs. Such research has several potential benefits for both modellers and policy makers: to assist in focusing modelling efforts on those inputs whose uncertainty counts the most, to direct decision making attention to the main drivers of the results, and to better understand whether only a subset of assumptions in the narratives like the SSPs would be enough to cover a similar uncertainty space. This parsimonious attitude towards inputs and assumptions becomes more and more desirable, as uncertainty can be thoroughly treated only up to few dimensions and IAMs become more advanced and computationally burdensome (i.e. curse of dimensionality). Day 2 Morning Sessions (11.30‐12.45) Parallel B: Environmental Taxes, Trade and Markets‐Room G02 Blending Under Uncertainty: Insights from the Biofuels Industry Hamed Ghoddusi1, School of Business, Stevens Institute of Technology, 1 Castle Point on Hudson, Hoboken, NJ 07093, USA Keywords: Biofuels Mandates, Valuation, Real Options, Strangle Option The firm value of a representative ethanol producer that benefits from both low and high gasoline prices is modeled. Ethanol producers make a modest competitive profit in the mandate-induced region of production. A lower price of gasoline increases the demand for blend ethanol and consequently the profit of ethanol producers. However, when gasoline becomes more costly than ethanol the capacity constraints of the biofuels sector bind and ethanol producers gain a large quasi-monopoly margin. This is an interesting example of an energy market with two commodities being complement up to a point and substitute after that. We postulate the value of an ethanol producer as a strangle option consisting of two real options: option to substitute gasoline at the times of expensive crude oil and option to expand supply of blend at times of cheap gasoline. Through a dynamic model we show that higher volatilities of crude oil and ethanol costs increase biofuels firms’ value. We also find non-monotonic relationships between the value of ethanol plant and several underlying variables including the level of gasoline price. We estimate that the option value provided by 10% blend mandates is around $130,000,000 for a representative ethanol unit. Our results offer a novel view of oil and feedstock price risks different than common belief that considers those risks as a negative factor for the biofuels sector. Interaction between CO2 emissions trading and renewable energy subsidies under uncertainty: feed‐in‐tariffs as a safety net against over allocation Keywords: Emission trading; renewable energy; feed-in-tariff; policy interaction; uncertainty We study the interaction between a CO2 emissions trading system (ETS) and renewable energy subsidies under uncertainty on electricity demand and on energy costs. We first provide evidence that uncertainty has generated overallocation (defined as an emission cap above business-as-usual emissions) during at least a part of the history of most ETS in the world. We then develop an analytical model and a numerical model applied to the European Union’s electricity market, in which renewable energy subsidies are justified only by CO2 abatement. When uncertainty is low, renewable energy subsidies are not justified, but when it is large enough, these subsidies increase expected welfare because they provide CO2 abatement even in case of overallocation. The source of uncertainty matters to compare the various types of renewable energy subsidies. Under uncertainty on electricity demand, on renewable energy cost or on gas price, a feed-in-tariff brings a higher expected welfare than a feed-inpremium because it provides a higher subsidy when it is actually needed i.e. when the electricity price is low. Under uncertainty on coal price, the opposite result prevails. Day 2 Morning Sessions (11.30‐12.45) Parallel C: Decarbonisation pathways‐ G03 U.S. Emissions and Technology Pathways toward 2050 Goals: The Role of Temporal Flexibility John E. Bistlinea and Francisco de la Chesnaye Electric Power Research Institute The United States recently reaffirmed its goal through the Paris Agreement to reduce economy-wide greenhouse gas emissions to 26–28 percent below 2005 levels in 2025, and the Obama Administration’s Climate Action Plan previously proposed an 80 percent target by 2050. This paper investigates the role of temporal flexibility from emissions banking provisions under an economy-wide cap-and-trade policy, which provides insight into the consistency between nearand long-term goals. Model results using US- REGEN indicate that, when temporal flexibility is absent, significant and sustained transformations must occur across many sectors. In particular, electrification and energy efficiency are key elements of economy-wide reductions, as electricity may provide over half of final energy by 2050. We show how current literature on meeting the 80% target almost exclusively assumes banking, which may bias policy recommendations and have important consequences for near-term R&D prioritization and model development. Keywords: Climate policy; temporal flexibility; cap-and-trade; market-based environmental policy; technology; energy-economic modeling IMPACTS OF FOSSIL FUELS EXTRACTION COSTS AND CARBON PRICING ON ENERGY EFFICIENCY POLICIES Nadia Maïzi, Alice Didelot, Vincent Mazauric, Edi Assoumou and Sandrine Selosse We propose to explore energy efficiency potential in relation with different fossil fuels extraction costs schemes crossed with carbon pricing scenario built under various global carbon taxes. This sensitivity analysis relies on prospective studies conducted with the technical-and-economic, bottom- up optimization model TIAM-FR (TIMES Integrated Assessment Model developed at the Center for Applied Mathematics MINES ParisTech), where energy efficiency is endogenized: thus, the system reaches the optimal efficiency level according to cost constraints. This representation has been implemented and calibrated for the industrial, residential and tertiary sectors to enable a better understanding of the balance between energy efficiency potential when fossil fuels extraction costs and carbon pricing patterns are considered. The role of direct air capture in achieving the Paris climate targets Adriana Marcucci1∗, Socrates Kypreos2 , Evangelos Panos2 1 ETH Zurich, Switzerland 2 Paul Scherrer Institute, Switzerland Reducing carbon emissions requires the development of different and complementary mitigation technologies including less emitting alternatives, such as renewable-based or more efficient technolo- gies, and carbon-removal options. Atmospheric carbon dioxide removal (CDR) methods include bio- logical and chemical removal. Biological carbon removal covers a broad range of alternatives based on land use management, afforestation and bio-energy combined with carbon capture and storage (BECCS). Chemical removal of CO2 includes processes such as direct carbon dioxide capture from the ambient air (DAC) or the reaction of minerals with CO2 to form carbonates (The Royal Society, 2009). The role in the future energy system of BECCS (Fuss et al., 2014; Klein et al., 2014; Kriegler et al., 2013; Popp et al., 2011; van Vuuren et al., 2013) and that of afforestation (Canadell & Raupach, 2008; Humpe- noeder et al., 2014; IPCC, 2007; Obersteiner et al., 2006) have been largely analyzed in the literature since they are arguably considered the most attractive options to realize negative carbon emissions. DAC, however, could be considered a complementary backstop technology to CCS from fossil fuels combustion and BECCS to achieve the stringent 2◦ C target since it can capture the carbon produced by small distributed sources such as residential heating and cooling and transportation. Day 2 Morning Sessions (11.30‐12.45) Parallel D: Power System Pathways‐ G04 Using resource based slicing to capture the intermittency of variable renewables Mariliis Lehtveer, Niclas Mattsson, Fredrik Hedenus, Martin Soini Physical Resource Theory, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden *Corresponding author: [email protected], +46 317 723 129 Keywords: Variability, renewable energy sources, energy system model, time slices As the share of variable renewables – wind and solar PV – is expected to grow significantly in coming decades, it has become increasingly important to account for their intermittency in large scale energy models that are used to explore long term energy futures. In this paper we propose and evaluate one method for doing so, namely, resource based slicing. In addition we implement storage based on possible transitions between slices which allows us to explore new dynamics between intermittent generation and electricity storage in large scale models. Our preliminary results show that this approach manages to capture many aspects introduced by variable renewables such as need for flexible generation capacity and curtailment at high penetration levels. We show that adding electricity storage to the system will favour solar power but has only a minor effect on wind and nuclear power. Hydropower Externalities: A Meta‐ Analysis Matteo Mattmann1,2*, Ivana Logar1, Roy Brouwer3,1 1Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland 2Department of Environmental Economics, Institute of Environmental Studies, VU University Amsterdam, The Netherlands 3The Water Institute, Department of Economics, University of Waterloo, Canada Keywords Hydropower, renewable energy, externalities, non-market valuation, meta-regression, sensitivity to scope This paper presents a meta-analysis of existing research related to the economic valuation of the external effects of hydropower. A database consisting of 81 observations derived from 29 studies valuing the non- market impacts of hydropower electricity generation is constructed with the main aim to quantify and ex- plain the economic values for positive and negative hydropower externalities. Different meta-regression model specifications are used to test the robustness of significant determinants of non-market values, including different types of hydropower impacts. The explanatory and predictive power of the estimated models is relatively high. Whilst controlling for sample and study characteristics, we find significant evidence for public aversion towards deteriorations of landscape, vegetation and wildlife caused by hydro-projects Day 2 Morning Sessions (11.30‐12.45) Parallel E: Pathways‐ G05 Sustainable Development Cost and returns of renewable energy in Sub‐ Saharan Africa. A comparison of Kenya and Ghana Ana Pueyo, Simon Bawakyillenuo and Helen Osiolo Keywords: Renewable energy, Africa, cost, finance The allocation of finance for the provision of green electricity in Sub‐Saharan Africa should be informed by two questions: which generation technologies are financially viable? and which generation technologies are affordable? Our analysis addresses these for Kenya and Ghana by calculating LCOE and IRR for a portfolio of RE technologies under different scenarios. Our results show better fundamentals in Kenya for the successful implementation of renewable energy projects. Wind and geothermal technology offer low cost electricity and healthy returns to investment. Solar PV could be competitive with expensive diesel generation but its current price does not allow for cost recovery. Kenyan Feed‐in Tariffs protect investors against currency devaluation and the off‐ taker is creditworthy. Ghana’s renewable electricity (except hydro) is expensive in comparison and offers lower returns. This is mainly due to high financing costs and lower quality RE resources. Additionally, RE investors in Ghana are not protected against further currency devaluation by the existing FiT scheme and there are concerns about the creditworthiness of the off‐taker. Policymakers should target these key constraints to affordability and profitability to support a higher penetration of renewables in the country. An Indicative Analysis of Investment Opportunities in the African Electricity Supply Sector‐ Using TEMBA (The Electricity Model Base for Africa) Constantinos Taliotis1, Abhishek Shivakumar1, Eunice Ramos1, Mark Howells1, Dimitris Mentis1, Vignesh Sridharan1, Oliver Broad1, Linus Mofor2 1KTH Royal Institute of Technology, Department of Energy Technology, Division of Energy Systems Brinellvagen 68, 100 44 Stockholm, Sweden Keywords: OSeMOSYS; African electricity supply; electricity trade; costoptimization; TEMBA. This paper examines indicative scenarios of power plant investments based on potential for electricity trade and argues that trade can impact on the most economical mix of energy sources and generation sites. OSeMOSYS, a costoptimization tool used for long-term energy planning, is used to develop least cost supply system configurations. The electricity supply systems of forty-seven countries are modelled individually and linked together via trade links to form TEMBA (The Electricity Model Base for Africa). A scenario comparison of the generation mix evolution in each country up to 2040 shows that an enhanced grid network can alter Africa’s overall generation mix and result in a reduced electricity generation cost. A climate resilient Africa ‐ Calculating the cost of adaptation to climate change for the African Countries Vignesh Sridharana*, Oliver Broada, Mark Howellsa, Abhishek Shivakumara, Constantinos Taliotisa aKTH – Royal Institute of Technology, division of Energy Systems Analysis Office K513, Brinellvägen 68, 100 44 Stockholm, Sweden Tel: +46 76 40 99 660 The paper analyses the different African Power pools and attempts to calculate the cost of adaptation to climate change, over a set of dry and wet climate futures, for each of the 47 African mainland countries. The model was developed on TEMBA (The Electricity Model Base for Africa) [2] which was created using the Open Source energy Modelling System; OSeMOSYS [3]. Owing to its openly available code, the costraint equations can be easily modified to introduce new parameters. This was required in this work to implement new constraints like implementing reserve margin targets for individual countries in the model. Day 2 Afternoon Sessions (14.00‐15.15) Parallel A: Modelling Uncertainty‐Room G01 An Alternate Methodology to Sensitivity Testing using Stochastic Modelling and the South African TIMES Model Bryce McCall, Bruno Merven, Alison Hughes, Fadiel Ahjum, Tara Caetano In this paper, we investigate the use of the stochastic optimisation feature of TIMES to analyse uncertainty in a key policy parameter of SATIM, namely the “carbon space” available to South Africa to 2050 to meet global climate mitigation objectives. Sensitivity of Modeling Results to Technological and Regional Details: The Case of Italy’s Carbon Mitigation Policy Gabriele Standardi, Yiyong Cai and Sonia Yeh Taking Italy as an example, we find that the estimation for carbon price and economic cost of a de-carbonization pathway by a model with technological and regional details can be lower than a model without such details by up to 40%. Additionally, the effect of representing regional details appears to be several times more important than the effect of representing the details of electricity technology in both the estimated carbon prices and the estimated impacts on electricity production. Our results for Italy highlight the importance of modeling uncertainties of these two key assumptions, which should be appropriately acknowledged when applying CGE models for policy impact assessment. Our conclusions can be generalized to different countries and policy scenarios not in terms of magnitudes of results but in terms of economic explanation. In particular, intra- national trade and the sub-national sectoral/technological specialization are important variables to understand the economic dynamics behind these outcomes. Adapting long‐lived infrastructure to uncertain and transient change Shall infrastructure assets become more robust and long-lived if un- favorable exogeneous conditions become more uncertain, and if the assets’ design is irreversible for their whole life time? Such problems are frequently encountered, for example in infrastructure adaptation to climate change, or electricity grid expansion with uncertain future feed-in of renewables. We analyze this decision problem with a two- stage structure. While the first stage is a standard optimization, the second stage is a stopping problem of stochastic dynamic control. We derive the value function and the comparative statics for two design options: asset size and robustness. We determine the expected life- time under the condition of an optimal but irreversible design. When size can be adapted, we find a decreasing expected optimized life-time for more rapidly changing conditions. This only holds for robustness if the original life-time is not too large. Results are ambiguous for rising uncertainty. For robustness, originally shorter-lived assets’ life-time is expanded. For size, the relation between the certain drift rate and the discount rate matters. There can be a case for making infrastructure less robust in the light of uncertain and transient change. Day 2 Afternoon Sessions (14.00‐15.15) Parallel B: Environmental Taxes, Markets and Trade‐ G02 Cost‐Efficiency of the EU Emissions Trading Scheme (EU ETS): An Ex‐Post Analysis Johanna Cludius1,3, Vicki Duscha2*, Nele Friedrichsen2, Katja Schumacher1 1 Oeko-Institut (Schicklerstr. 5-7, DE-10179 Berlin, Tel. +49 30 405085-380, 2 Fraunhofer Institute for System and Innovations Research (Breslauer Straße 4, DE-76139 Karlsruhe, Tel. +49 721 6809-0, [email protected], 3 Zurich University of Applied Sciences This paper aims at shedding light on the question whether and to what extent in practice the EU ETS has proven to be more cost-efficient than alternative policies. The analysis presents an ex-post evaluation of the cost-efficiency of the EU ETS in its second trading period. It reveals average cost savings under the EU ETS in the base scenario of about 865 million Euro p.a., an efficiency gain of 47% compared to the alternative policy scenario without trade. Sensitivity scenarios which vary the assumptions on temporal, sectoral and regional disaggregation indicate somewhat lower efficiency gains ranging from 11-39% depending on the assumptions taken. Lower efficiency gains occur in cases with higher sectoral and regional aggregation emphasising the importance of intra- industry and inter-country trade. The analysis further reveals that deriving robust results on the exact cost savings faces a trade-off between sectoral coverage (breadth) and level of detail (depth). Furthermore, assumptions regarding the abatement requirements under the alternative policy play a key role, along with the choice of marginal abatement cost curves. Environmental Policies that Maximise Social Welfare: The Role of Intergenerational Inequality Frédéric Gonand∗ and Pierre-André Jouvet Key words: Carbon emissions - General equilibrium - Overlapping generations Renewable energies - Carbon tax - Intergenerational redistribution - Social choice. Carbon emissions can be curbed down through a public intervention — for instance, a public decision that increases directly the fraction of renewables in the energy mix, or the imple- mentation of a carbon tax. This article relies on a computable general equilibrium model with overlapping generations in order to determine the optimal mix of instruments for different types of social preferences. This model is parameterised on German data. Results suggest that a social planner that takes account of the welfare of future generations and is highly averse to intergenerational inequal- ity chooses to implement a relatively moderate, fully recycled carbon tax and to increase in parallel the fraction of renewables in the energy mix — even if the recycled tax favors growth and future generations. Only authorities with utilitarist preferences implement a low-carbon transition relying mostly on a fully recycled carbon tax. Overall, our article suggests that intergenerational redistributive effects can significantly influence the social choice as concerns environmental policies and the optimal mix of instruments. Day 2 Afternoon Sessions (14.00‐15.15) Parallel C: Decarbonisation pathways‐ G03 CO2 Mitigation for Climate Risk Management Geoffrey Blanford, EPRI Delavane Diaz, EPRI Richard Richels, EPRI Steven Rose, EPRI Thomas Rutherford, University of Wisconsin Climate policy is fundamentally about managing risk. Most prominently, there is uncertainty about the sensitivity of the climate response to increased greenhouse gas (GHG) concentrations and about the impacts to society of a changing climate and our willingness to pay to avoid them. To understand the implications of these climate risks for mitigation decisions, a stochastic costbenefit modeling framework is necessary. In this study, we use a new stochasticprogramming version of the MERGE integrated assessment model (IAM) to explore optimal hedging paths under uncertainty about both climate sensitivity and the damage function that is gradually resolved over time. Our results illustrate how near-term mitigation strategy could effectively hedge against a potential risk characterization. More generally, our modeling framework provides a tool for communicating the implications of alternative assumptions about long-term climate risks for policy decisions today. Modelling investment in upstream gas and implications for future supply curves under different demand scenarios Daniel J G Crowa,*, Sara Giarolaa and Adam Hawkesb a Earth Science & Engineering Department, Imperial College London, London SW7 2AZ, UK b Chemical Engineering Department, Imperial College London, London SW7 2AZ, UK *[email protected] Energy systems models have so far played a crucial role in investigating the likely economic impact of decarbonisation. As part of Integrated assessment models, they can be combined with modules that calculate the climate impact of GHG emissions to generate a complete map of possible transition scenarios, each of which is typically characterised by the trade-off between climate impact and cost (G Metcalf, 2015) (McJeon et al., 2014). Most energy systems models select a cost minimising mixture of energy commodities and energy flows (including all the associated extraction, transformation, distribution and end-use technologies) which satisfy both future projected demand for energy services (such as heating, lighting and transport) and a GHG emissions or temperature change budget (Napp, 2015). Such models are extremely influential in policymaking and business alike (the latter being affected by the former). A multi‐model method to analyse the economics of power‐to‐gas for renewable integration Paul E Dodds1*, Warren Hicks2, Marta Moreno-Benito3, Nagore Sabio1, Wei Sun4 1 UCL Energy Institute, University College London 2 School of Construction Management & Engineering, University of Reading 3 Centre for Process Systems Engineering, University College London 4 School of Engineering, University of Edinburgh We have identified that a market for hydrogen in transport is robust to uncertainties in renewable penetration and technology availability, using the UKTM energy system model. We have used the SHIPMod spatial infrastructure planning model to show that building a pipeline network could be the cheapest long-term option to meet hydrogen demands for road transport across the UK. Using a bespoke electricity dispatch/network model, we have found that hydrogen from excess electricity generation is unlikely to exceed transport hydrogen demand even at very high levels of renewable penetration in 2050. Day 2 Afternoon Sessions (14.00‐15.15) Parallel D: Decarbonisation pathways‐ G04 The role of capital costs for decarbonizing the power sector Lion Hirth1,2 and Jan Christoph Steckel1,3,4,* 1 Mercator Research Institute on Global Commons and Climate Change, Torgauer Str. 12-15, 10829 Berlin, Germany 2 neon neue energieökonomik gmbh (neon), Germany 3 Technische Universität Berlin, Str. d. 17. Juni 135, 10623 Berlin, Germany 4 Potsdam Institute for Climate Impact Research, Telegraphenberg, 14473 Potsdam, Germany The costs structure of different power generating technologies is very different between fossil fuel based technologies and low carbon alternatives, with the latter generally being more capital intensive. In this paper we evaluate how this observation affects the transformation of the energy system under climate policy in a partial equilibrium model of the wholesale electricity market with a focus on the supply side. We find that there is a severe trade-off between capital costs and carbon prices. If capital costs are high, i.e. 10% or higher, the diffusion of renewable energy technologies like wind or solar is significantly impeded while fossil fuel based technologies like coal stay in the market. Our results hold implications for climate change policy. Particularly in developing and emerging countries where capital costs are often found to be high, carbon pricing would need to be combined with policies to bring down capital costs in order to induce a transformation to low-carbon energy based power systems. Electricity grid and storage: complements or substitutes? Paul Neetzow a, b, ∗ and Anna Pechan a a Department of Economics, Carl von Ossietzky University Oldenburg, Germany b Division of Resource Economics, Humboldt University of Berlin, Germany A broad transition to renewable energies implies increasing chal- lenges for both, the spatial and temporal distribution of power. At the same time, an understanding of the interdependence of power system components is crucial to achieve a cost efficient deployment. Yet, existing studies concerned with the relation of storage and power transmission deployment yield contradictory results on how these in- fluence each other. To resolve this ambiguity, we separately introduce storage and transmission in a coherent analytic modeling framework and solve the dispatch as well as capacity decisions of a social planner. The results indicate that the main determinants of the transmission- storage relation are the occurrence of transmission constraints at peak or off-peak times and the location of the storage at the production or load site. Evaluating the capacity of Integrated Assessment Models to represent system integration challenges of wind and solar power Robert C. Pietzcker1*, Falko Ueckerdt1, Samuel Carrara2, Harmen Sytze de Boer3, Jacques Després4, Shinichiro Fujimori5, Nils Johnson6, Alban Kitous, Yvonne Scholz7, Patrick Sullivan8, Gunnar Luderer1 1 Potsdam Institute for Climate Impact Research, Potsdam, Germany Et al In this study, we qualitatively and quantitatively evaluate these modeling improvements. For a comprehensive and transparent qualitative evaluation, we first develop a framework of stylized facts about power sector dynamics and VRE integration. We then apply this framework to the newly‐developed modeling approaches to derive a detailed map of strengths and limitations of the different approaches. For the quantitative evaluation, we compare the IAMs to the detailed hourly‐ resolution power sector model REMIX. We find that the new modeling approaches manage to represent a large number of stylized facts of the power sector, and the numerical results are in reasonable agreement with those derived from the detailed power sector model. Updating the power sector representation and the cost and resources of wind and solar reduced the spread between different models and substantially increased wind and solar shares across models. Day 2 Afternoon Sessions (14.00‐15.15) Parallel E: Decarbonisation pathways‐ G05 Actors Behaving Badly: Modelling Non‐ Optimal Behaviour in Energy Transitions Francis G. N. Lia, [email protected], +44 20 3108 5962 a UCL Energy Institute, Central House, 14 Upper Woburn Place, London, WC1H 0NN, United Kingdom This paper features a stochastic system dynamic model of the UK energy system, the Behaviour, Lifestyles and Uncertainty Energy model (BLUE). BLUE is used here to illustrate transition pathways in the energy system that deviate from strict economic rationality, which are explored in the context of other key uncertainties such as fuel prices and technology costs. Energy transitions in different sectors resulting from the use of a social planning perspective and cost optimal behaviour are compared against a counterfactual case where actors make a range of heterogeneous choices, some of them non-optimal, and have different perspectives on valuing the future. The initial results show that nonoptimal behaviour has the potential to impose a strong retarding force on climate mitigation policies, rendering ambitious GHG reduction targets extremely difficult to achieve. Despite widespread recognition of the challenges posed by behavioural complexity, its’ representation in energy economic modelling remains underexplored, and developing quantitative assessment methods that can capture the socio-technical nature of energy transitions should be a priority for model based science. Keywords Energy systems modelling, decarbonisation, behavioural economics, sociotechnical transitions, technology diffusion Endogenizing Behavioral Effects and Infrastructure Investments in COCHIN‐TIMES model and their Implications for Climate Policy Analysis Kalai Rameaa, David Bunchb , Christopher Yanga, Sonia Yeha, Joan Ogdena a Institute of Transportation Studies, University of California, Davis, CA b Graduate School of Management, University of California, Davis, CA The motivation for integrating the behavioral approach in energy systems model paradigm is to take advantage of TIMES-specific features such as, system-wide carbon cap, and comprehensive infrastructure investment analysis. This paper will focus on methodological improvements to the COCHIN-TIMES model framework, in order to prepare the model to better perform climate policy analysis, while retaining the behavioral aspects of consumers. The improvements mainly include endogenizing the disu- tility cost components, and introducing flexible infrastructure investment in the model. The preliminary results compare the model outcome between a baseline scenario and a climate constrained scenario, for the model versions with strict and flexible infrastucture investment patterns. Keywords: Energy systems models, consumer choice, behavior, climate policy analysis, transportation Time use, lifestyle and energy consumption: lessons from time use and budget data for French households Simona De Lauretis∗1,2, Frederic Ghersi1, and Jean-Michel Cayla2 1CIRED, AgroParisTech, Cirad, CNRS, EHESS, Ecole des Ponts ParisTech, Universit´e Paris-Saclay, 94130 Nogent-sur-Marne, France 2Electricit´e de France (EDF R&D), site des Renardi`eres, 77818 Moret sur Loing CEDEX, France In this paper, we analyse time and material consumption requirements of a set of 13 everyday activities, matching time use and expenditure data for more than 14000 French households. We devote special attention to linking energy and transport expenditures to different activities, by using additional, dedicated surveys to allocate residential energy consumptions, fuel expenses and other transport expenses to our everyday activities. This allows to determine the non- energy expenditure intensity and the energy expenditure intensity for each activity and compare the results for different income groups, household compositions and types of dwelling. Day 2 Late Afternoon Sessions (15.45‐17.00) Parallel A: Modelling Uncertainty‐Room G01 Quantifying uncertainties influencing the long ‐term impacts of oil prices on energy markets and carbon emissions David L. McCollum1*, Jessica Jewell1, Volker Krey1, Morgan Bazilian2, Marianne Fay2, Keywan Riahi1,3 1 International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, 2361 Laxenburg, Austria Oil prices took a dramatic plunge starting in late-2014 and have remained low ever since. Combined with parallel developments in natural gas supply, this plunge has prompted questions regarding what the “new normal” might mean for global markets. How will falling oil and gas prices affect energy decisionmaking over the long term? Will they damage the business case for renewables? Will they stymie incentives to invest in energy efficiency? How do they change the outlook for coal and nuclear? Does this spell bad news for efforts to mitigate climate change? As yet, no scientific studies have systematically assessed these critical unknowns. Here we present work that unpicks several potentially influential factors, thereby going beyond economic analyses focusing on the very near term impacts of oil prices and the limited number of scenario analyses for the mid-to-long term Integrated Assessment of Uncertain Climate Catastrophes: What Does the Risk of Ice Sheet Disintegration Imply for Economic Analyses of Climate Policy? Delavane Diaz and Klaus Keller Keywords: Climate policy, risk management, social cost of carbon, ice sheet collapse, sea level rise, endogenous uncertainty, stochastic optimization, greenhouse gas mitigation we analyze the effects of representing (in a very approximate way) a potential WAIS disintegration in a stochastic programming IAM with endogenous uncertainty. We identify methodological a n d conceptual challenges and demonstrate avenues to address some of them through model emulation as well as the representation of expert knowledge, and learning. The results illustrate the relationships between scientific uncertainties, policy objectives, and metrics such as the social cost of carbon. We conclude with a discussion of key open challenges and research needs. Modelling to generate alternatives: A technique to explore uncertainty in energy‐environment‐economy models James Price and Ilkka Keppo UCL Energy Institute, Central House, 14 Upper Woburn Place, London, WC1H ONN Exploring the impact of uncertainty associated with structural assumptions or simpli- fications on the other hand requires altering the underlying formulation of the model while keeping its input parameters fixed. Here we use the technique of modelling to generatealternatives to relax one key assumption of an E3 model, that of cost optimality, and map the diversity of different energy systems that lie within its near cost minimum solution space. The aim being to assess the stability of the results implied by the model’s least cost solution and to search for consistent insights that emerge under at least a portion of the full structural uncertainty budget. In this study we apply MGA, the specific methodology of which will be detailed in a later section, to the TIMES Integrated Assessment Model in University College London (TIAM-UCL), a global E3 model built within the International Energy Agency’s Energy Technology System Analysis Program (IEA-ETSAP) TIMES framework. Day 2 Late Afternoon Sessions (15.45‐17.00) Parallel B: Environmental Taxes, Trades and Markets‐Room G02 Modelling gas transport capacity investments with limited knowledge on future markets Sara Giarolaa, Daniel J.G. Crowa and Adam Hawkesb,* a Earth Science & Engineering Department, Imperial College London, London SW7 2AZ, UK b Chemical Engineering Department, Imperial College London, London SW7 2AZ, UK In this paper a modelling framework is proposed to address and quantify the potential issues as- sociated with the transport of gas from reserves to demand centres. A minimum cost transport model was developed to study the evolution and propose plausible scenarios for the transitions of the natural gas transport system. Effects of limited foresight in decision-making involving long- term investments are analysed. A case study is presented to address the interregional trade of the natural gas supply on a global scale. The total configuration system costs become higher than the intertemporal optimisation ones in scenarios where decision-makers have only partial (i.e. limited to shorter periods in the selected time horizon) information of market developments. Keywords: natural gas market, natural gas transport infrastructures, LNG, longterm contracts Consumption vs. Production Based CO2 Pricing Policies: Macroeconomic Trade‐Offs and Carbon Leakage Mark Sommer, Kurt Kratena, WIFO, Arsenal, Obj. 12, A-1030 Vienna, Austria This paper compares the traditional environmental tax reform for CO2 emissions with a taxation scheme that taxes CO2 emissions embodied in consumption instead of domestic production in the framework of a unilateral policy of the EU27. The embodied emissions are taxed independently of their origin. The CO2 tax rates applied are identical and revenues of the new CO2 tax are in both cases recycled via lower social security contributions of employers as well as of employees. The analysis is done with a DYNK (Dynamic New Keynesian) model covering 59 industries and five groups of household income for the EU27. The domestically (within the EU 27) embodied CO2 emissions are calculated by unitary shocks for each commodity in the DYNK model. The emissions embodied in imports from Non-EU 27 as well as the resulting carbon leakage from an EU 27 perspective are calculated using the results of a simple MRIO (Multi-Regional Input-Output) model. The results show the different macroeconomic results, driven by the different impact of the taxation schemes on price competitiveness of EU 27 firms. These differences in trade effects also drive the differences in leakage and show considerable negative leakage effects in the case of taxing embodied CO2 emissions. Both taxation schemes are also regressive for household incomes, but in a very different magnitude. On the Transition of Europe’s Power Market‐ Benefits of Coordination Geoffrey J. Blanforda, Electric Power Research Institute, Pao Alto, U.S.A Christoph Weissbartb, ifo Center for Energy, Climate and Exhaustible Resources, ifo Institute Munich, Germany Prospects for the European power market indicate that it nearly has to fully decarbonize by 2050 to reach the economy-wide target of an 80 % CO2-emission reduction. Existing research on the European power market emphasizes the future role of renewable energy sources (RES) and flexibility measures along that decarbonization path. We add to this by using the EU- REGEN model to explain the penetration of RES from an economic perspective, their spatial distribution, and the complementary role of conventional generation technologies. Furthermore, we identify economic consequences of national energy and climate targets. Our study shows that onshore wind power will be the most crucial generation technology for the future European power market. The paper demonstrates that existing national targets have a negative impact on especially the German region with higher prices and lower revenues. The remaining regions profit or are hardly affected. We encourage an EU-wide coordination on the expansion of wind power with harmonized policies. Yet, this requires profitable market structures for both, RES and conventional generation technologies. Day 2 Late Afternoon Sessions (15.45‐17.00) Parallel C: Decarbonisation pathways ‐Room G03 Environmental impacts of high penetration renewable energy scenarios for Europe Peter Berrill1, Anders Arvesen1, Yvonne Scholz2, Hans Christian Gils2 and Edgar G Hertwich1,3 1 Industrial Ecology Programme and Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Sem Sælands vei 7, NTNU, NO-7491 Trondheim, Norway 2 Institute of Engineering Thermodynamics, German Aerospace Center (DLR), Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany 3 Center for Industrial Ecology, School of Forestry & Environmental Studies, Yale University, New Haven, CT 06511, USA Keywords: life cycle assessment (LCA), electricity scenarios, power system, THEMIS, REMix Our Results show that systems based largely on VRE perform much better regarding climate change and other impact categories than the investigated systems based on fossil fuels. The climate change impacts from Europe for the year 2050 in a scenario using primarily natural gas are 1400 Tg CO2-eq while in a scenario using mostly coal with CCS the impacts are 480 Tg CO2-eq. Systems based on renewables with an even mix of wind and solar capacity generate impacts of 120–140 Tg CO2-eq. Impacts arising as a result of wind and solar variability do not significantly compromise the climate benefits of utilising these energy resources. VRE systems require more infrastructure leading to much larger mineral resource depletion impacts than fossil fuel systems, and greater land occupation impacts than systems based on natural gas. Emissions and resource requirements from wind power are smaller than from solar power. The sensitivity of system cost and wind power revenues to sub‐optimal investment in wind power capacity Joel Goop∗, Lina Reichenberg, Lisa Göransson Department of Energy and Environment Chalmers University of Technology 412 96 Göteborg, Sweden In this paper, we therefore investigate how the system composition, total system cost, and profits for power plant owners are affected when the level of wind power in the system deviates from the cost-optimal value. Using a “green-field” (not considering the existing capacity in the system) cost-minimising investment and dispatch model for a single region with input data corresponding to Western Denmark, we find the cost-optimal system composition with a 99 % reduction in CO2 emissions compared with Year 1990 levels. Under cost assumptions where nuclear power is competitive, it is the main competitor for wind power, i.e., overinvestment in wind power results mainly in reduced nuclear power generation. In a system where nuclear power is not competitive, or not an acceptable option, the cost-optimal wind power penetration level is substantially higher, up to 37 % compared with 21 % in the base case. The sensitivity of the total system cost and profits for wind power owners to sub-optimal investment levels in wind power, are also found to be significantly higher in the system without nuclear power. Swedish climate policy in 2050 – Does the targets need to be defined now? Anna Krook Riekkola, Luleå University of Technology (LTU) Erik Sandberg, Luleå University of Technology (LTU) Several studies have recently examined different aspects of an EU wide greenhouse gas reduction target using energy system models. Many of the studies focus on specific sectors such as electricity or heat. Nagl et al. (2011) focuses on policy scenarios in Germany to reach 85% greenhouse gas emissions. Díaz and Vliet (2015) evaluate technical feasibility after nuclear phase out in Switzerland with regards to energy targets 2050. Gerbelová et al. (2014) focuses on carbon taxes in Portugal as a policy to reach 80‐95% emission reduction in the sector. Amorim et al. (2014) focuses on pathways to fully decarbonize the power sector in Portugal, which included an evaluation on how the results would differ if only looking at Portugal or using an integrated model scenario that also includes Spain. Day 2 Late Afternoon Sessions (15.45‐17.00) Parallel D: Power System pathway‐ G04 Transformation of the European Union’s power sector to 2030 – Adding value to IRENA’s REmap 2030 project using a European Electricity Model Seán Collins1, Deger Saygin 2, J.P Deane1, Brian P Ó Gallachóir1, Asami Miketa 2, Dolf Gielen 2 1Energy Policy and Modelling Group, University College Cork, Ireland 2International Renewable Energy Agency, IITC, Bonn, Germany REmap is International Renewable Energy Agency’s (IRENA) global renewable energy roadmap that looks at the potential, cost and benefits of renewable energy that can be deployed in 2030 beyond a baseline. By the end of 2015, nine countries that represent sixty percent of the European Union’s (EU) gross final energy consumption (GFEC) were part of the REmap programme. (These countries are: Belgium, Cyprus, Denmark, France, Germany, Italy, Poland, Sweden and United Kingdom.) This paper aims to answer two fundamental questions by scrutinizing the findings of the PLEXOS model developed and contrasting them with the REmap analysis at a country level: 1) How plausible are REmap results for the power sector considering baseline grid expansion plans and flexibility measure assumptions based on the latest ENTSO-E’s Ten Year Network Development Plan (TYNDP) and a PRIMES Policy Scenario with high levels of variable renewable generation? The Economic Potential Value of Near‐ and Offshore Wind Energy: An Application to the Portuguese Western Coast Marine renewable energy is currently too expensive to compete with alternative energy sources. However, many countries have created support schemes specific for those energy sources to account for the positive externalities associated with their deployment. Taking into account decreasing capital costs in real prices, externalities of renewable energy production, as well as factors at local level which influence the profitability of the investment, we develop a dynamic model to assess the economic potential value of near- and offshore wind energy at local level. An empirical application is performed at the PenicheNazaré study site located in the northwestern coast of Portugal. Our results indicate that offshore wind energy stands as the one with the highest economic potential value, if cheaper offshore wind technologies are developed. Day 2 Late Afternoon Sessions (15.45‐17.00) Parallel E: Behavior and People‐ G05 Willingness to pay for solar home systems in Guinea Bissau: consumers’ preferences for different delivery models Maria Apergi - London School of Economics and Political Science, UK Solar home systems are a viable alternative to achieve energy access in developing countries especially in areas lacking grid infrastructure; despite their important potential there is a dearth of research regarding the best ways to disseminate these products. This stated preference study uses a choice experiment to estimate willingness to pay for a solar home system and the attributes of different delivery models (repayment schemes and maintenance obligations) in the region of Bafatá in Guinea Bissau. It is, to the best of my knowledge, the first to do so. Results suggest that preferences are driven both by economic as well as behavioral factors namely self-control problems (elicited through a time elicitation game) and by social capital namely reported trust. Finally, implicit discount rates inferred from preferences for repayment over time allowed to confirm certain priors regarding discounting anomalies that have been outlined in the discounting literature namely excessive discounting, preference heterogeneity and time preference reversals. Incorporating Social Influence Effects into Global Integrated Assessment Models Hazel Pettifor and Charlie Wilson, University of East Anglia David McCollum, Energy Program, International Institute for Applied Systems Analysis (IIASA) Oreane Edelenbosch, PBL Netherlands Environment Assessment Agency Global integrated assessment models (IAMs) are widely used to evaluate the costs, potentials, and consequences of different greenhouse gas emission trajectories over the medium-to-long term. With their necessary levels of aggregation, IAMs do not represent individual interacting decision makers, but rather ‘representative agents’ that describe aggregate behaviour at the mean (McCollum et al., 2015). The climate change mitigation scenarios produced by these IAMs, however, are increasingly being designed to be more ‘realistic’ by incorporating features observed in the real world. One important feature of the ‘real world’ relates to human behaviour (McCollum et al., 2016). In this paper we present an entirely evidence based approach to improving the behavioural representation of global integrated assessment models with an application to private transport. Drawing on a meta-analysis of 21 studies independently measuring the effect of social influences on personal vehicle choice we present a novel approach to capturing aversion to new technology (alternatively fuelled vehicles (AFVs)) within both a simulation and an optimisation model. Day 3 Morning Sessions (11.30‐12.45) Parallel A: Transport Pathways‐Room G01 Implications of Future Freight Demand Growth for Climate Change Mitigation Matteo Muratori a*, Steven J. Smith a, Page Kyle a, Robert Link a a Pacific Northwest National Laboratory – Joint Global Change Research Institute, College Park, MD 20740 USA KEYWORDS Integrated Assessment Model; Freight Demand, Decoupling, Freight Environmental Impact, Global Change Assessment Model (GCAM We explore the implication of such a decoupling using a state-of-the-art integrated assessment model: the Global Change Assessment Model (GCAM). Results show that over the 21st century, GHG emissions from freight are projected to grow faster than other transportation sectors, with the magnitude of growth dependent on the assumed extent of long-term decoupling. Moreover, in climate change mitigation scenarios, mitigation of freight emissions (including the effects of fuel substitution, demand elasticity, and mode shifting) is more limited than for other demand sectors. The role of carbon dioxide utilisation for transportation fuels in EU28 until 2050, an analysis using JRC‐EU‐times Wouter Nijs, +31-224-565481, [email protected] Sgobbi, [email protected] Mar Pérez-Fortes, maria-del-mar.perez- [email protected] Evangelos Tzimas, [email protected] Institute for Energy and Transport, Joint Research Centre – European Commission*, Westerduinweg 3, NL-1755LE Petten, The Netherlands Keywords: CDU; CCU; Utilization; Energy system models; TIMES; Decarbonisation; EU28 In this paper, the JRC-EU-TIMES model – a bottom-up, technology-rich model of the EU28 energy system – is used to assess the role of CDU under long-term decarbonisation scenarios. We introduced in JRC-EU-TIMES CDU technologies that consume CO2 captured directly from the air (DAC) or from stationary sources (SSC) in the power, industry and transformation sectors. Our results indicate that CDU using CO2 from stationary sources could play a role as a flexibility option in the power sector when electricity is cheap in periods of high supply of variable renewables. Moreover, when CO2 cannot be permanently stored, the role of CDU is further enhanced. In this scenario, dedicated power to liquid and biomass to liquid play a significant role and the CO2 is mostly captured from biomass combustion or transformation. Modelling the role of Transport Infrastructure in a low‐carbon World Eoin Ó BROIN*, Céline GUIVARCH: CIRED, 45 bis avenue de la Belle Gabrielle, Nogent‐sur‐Marne Cedex 94736, France The rate and manner in which transport infrastructure (e.g. roads, railway tracks, airports) is deployed will play an important role in determining energy demand, greenhouse gas emissions and the economic impact of the transport sector. To date, the inclusion of transport infrastructure in Integrated Assessment Models (IAMs) has been rudimentary. This paper describes an exercise whereby the approach to the inclusion of transport infrastructure for automobiles, public transport and air travel in the IMACLIM‐R Global E3 IAM has been developed to incorporate the costs of investment in infrastructure and some physical constraints on its deployment. There are two key findings. The first is that recalibrating the baseline to include costs and constraints on the deployment of infrastructure results in lowered GDP and higher energy and carbon intensity. This is because investments in infrastructure increase the activity of the construction sector and this slows structural change of the economy towards more productive and less carbon intensive sectors. Day 3 Morning Sessions (11.30‐12.45) Parallel B: Environmental taxes, markets and trades‐Room G02 Energy Security Scenarios of Future Europe. Assessing the impacts of societal processes Christophe Cassen1, Meriem Hamdi-Chérif2, Giancarlo Cotella3, Jacopo Toniolo4, Patrizia Lombardi5, Jean-Charles Hourcade6 1 Société de mathématiques appliquées et sciences humaines (SMASH)- Centre International de Recherche sur l’environnement et le Développement (CIREDCNRS) Keywords: energy security, integrated assessment models, climate policies, transport, urban forms, scenarios, societal processes, MILESECURE-2050 We present the results produced through IMACLIM-R, a model allowing for the integration of innovative dimensions as the urban form, transport dynamics, environmental policies and human behaviours. In so doing it enables a pluridisciplinary dialog within the scientific community. Building on the preliminary study of a set of local good practices, the contribution introduces three scenarios presenting different assumptions on the energy transition and the implementation of climate policies. The results of the study demonstrate the positive macroeconomic outcomes of combining societal processes with transport dynamics in energy transition scenarios, also in terms of energy security. Finally, the policy implications of the presented scenarios are sketched out and discussed. Can Energy Efficiency Standards Reduce Prices and Improve Quality? Evidence from the US Clothes Washer Market Arlan Brucal and Michael Roberts We develop a constant-quality price index using same-model price changes of clothes washer models sold in the US between 2001 and 2011. We use this index to disentangle overall price and quality changes, and then examine how each changed as energy efficiency standards be- come progressively more stringent. The topic is clothes washers because it is the only durable good for which this kind of analysis can be implemented during a period of incremental policy changes. We find constant-quality prices fell over time while overall quality increased, each at approximately the same average rate as refrigerators, which did not experience any changes in the minimum standard. Furthermore, price declined and improvements accelerated around times quality energy efficiency standards changed. With policy changes apparently coordinating entry and exit of new models, average vintage falls sharply when standards change. Unilateral emission pricing and OPEC’s behaviour Christoph Böhringer* Knut Einar Rosendahl and Jan Schneider * University of Oldenburg. E-mail: [email protected] ** Norwegian University of Life Science; Statistics Norway. E-mail: [email protected] *** Corresponding author. University of Oldenburg. E-mail: [email protected] Keywords: Carbon Leakage, Oil Market, OPEC Behaviour Unilateral climate policies involve the risk of carbon leakage, driven by price changes in the oil market and other international markets. We have shown in previous analysis that OPEC may have an incentive to increase the oil price as a response to EU climate policy, thereby retaining resource rents and turning leakage through the oil market negative. In this paper, we examine the implications of OPEC’s strategic responses more thoroughly by extending our former analysis along four key dimensions: (i) the size of the climate coalition, (ii) the size of the oil cartel, (iii) oil-gas price linkages in the EU and Japan, and (iv) subsidies for oil consumption within OPEC. We show that the coalition or cartel size critically affect the scope for rent seeking and leakage reduction, whereas oil-gas price linkages in the EU and Japan or subsidies within OPEC do not alter the findings of our previous analysis. Day 3 Morning Sessions (11.30‐12.45) Parallel C: Macro and Socio Economic Impacts‐Room G03 The macroeconomic impact of climate change mitigation action in Latin America: a model comparison Tom Kober1*, Philip Summerton2, Hector Pollitt2, Unnada Chewpreecha2, Xiaolin Ren3, William Wills4, Claudia Octaviano5, James McFarland6, Robert Beach7, Yongxia Cai7, Silvia Calderon8, Karen Fisher- Vanden9, Ana Maria Loboguerro Rodriguez10 1 Energy research Centre of the Netherlands, Policy Studies, Amsterdam, The Netherlands Agriculture, Cali, Colombia et al In this paper, we analyse macroeconomic consequences of greenhouse gas emissions mitigation action in Latin America up to 2050 through a multi-model approach as jointly applied in the CLIMACAP-LAMP research project. We compare two carbon tax scenarios with a business-as-usual scenario needed to satisfy anticipated future energy demand. We find that in the short and medium term, with carbon prices reaching around $15/tCO2 by 2030, most models agree that the reduction in consumer spending, as a proxy for welfare, is expected to be limited to about 0.3%. By 2050, and at high carbon prices of $165/tCO2, there is much more divergence in the estimated impact on GDP and consumer spending across models and across regions, reflecting the uncertainty about the cost of technology and substitution between technology options. Keywords: Climate policy; energy and economy models; GDP; employment Modeling climate mitigation and economic growth in relation to employment and skills in South Africa Jules SCHERS,1 Frédéric GHERSI,1 Franck LECOCQ 1 1: CIRED, UMR 8568 CNRS, ENPC, EHESS, CIRAD, AgroParisTech. 45 bis Avenue de la Belle Gabrielle 94736 Nogent/Marne Cedex, FRANCE. Keywords: South Africa, Climate Mitigation, Carbon Tax, Recycling schemes, Labour market, Skills We explore two values of the carbon tax (respectively 100 and 300 Rand/tCO2) and five strategies for recycling the tax proceeds, namely: reducing public deficits, reducing sales taxes, reducing income and corporate taxes, increasing government expenditure, and transferring proceeds to households on a per capita lump-sum basis. We find that at 100 Rand/tCO2, revenue recycling through sales tax reduction yields a double dividend compared to our reference projection without a carbon tax. However, 300 Rand/tCO2 is needed to achieve a reduction of CO2 emissions close to South Africa’sINDC. At this tax level, we find only minor economic impacts relative to the reference projection when the proceeds are recycled into a reduction of sales tax, but much higher when the proceeds are recycled differently. Managing climate damages: exploring potential trade‐offs Steven Rose-Energy and Environmental Analysis Research Group, Electric Power Research Institute For this analysis, we extend the MERGE integrated assessment model by adding characterizations of potential climate damages and the capability to consider a vast range of uncertainties as alternative sets of assumptions. MERGE is a coupled energy-economic and climate model with detailed energy technologies. In this study, for a given set of assumptions, we compute the greenhouse gas emissions path that endogenously balances marginal mitigation costs and marginal avoided climate damages. This produces an economically “efficient” emissions path for that particular set of assumptions. Emissions are reduced if the marginal benefit exceeds the marginal cost. However, the decision problem is intertemporal with today’s marginal benefits depending on tomorrow’s mitigation and emissions path. The climate outcome is determined endogenously by balancing intertemporal benefits and costs of emissions reductions. But, unlike risk analysis with probabilities on assumptions, assumptions are known with certainty. Day 3 Morning Sessions (11.30‐12.45) Parallel D: Power System pathways ‐Room G04 Natural Gas Outlook for the Southern Cone: outcomes from an hourly basis TIMES natural gas & power model Mauro F. Chávez-Rodríguez1*, Luís Dias2, Sofia Simoes2, Júlia Seixas2, Alexandre Szklo1, André F.P. Lucena1, Adam Hawkes3 1Energy Planning Program, Federal University of Rio de Janeiro, Centro de Tecnologia, bloco C, sala 211 - CEP: 21949-972 Cidade Universitária - Ilha do Fundão 2 CENSE – Centre for Environmental and Sustainability Research, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829–516 Caparica, Portugal 3Department of Chemical Engineering, Imperial College London, Exhibition Rd., London, United Kingdom In this paper we pursue a twofold objective: i) describe the methodology followed to develop a TIMES model for the natural gas chain in the Southern Cone aiming to forecast natural gas supply and demand in the region until 2025, and ii) present our preliminary results on the natural gas trends in the region. Resource diversity impacts on storage in a high variable renewable power system B. Lyseng1, T. Niet1,2, J. English1, K. Palmer-Wilson1, A. Rowe1, P. Wild1, I. Moazzen1, B. Robertson1, V. Keller1 1 University of Victoria, Canada; 2 British Columbia Institute of Technology, Canada In this research, a new method is developed for assessing VRE expansion and storage requirements. Multiple scenarios, representing different potential wind/solar build-outs (i.e. spatial and fractional capacity distributions), are evaluated for their required VRE capacity and storage power to meet a target VRE penetration level. For each scenario, a VRE capacity - storage power curve is generated, revealing the optimal capacities to meet the target level. The methodology is demonstrated on the power system in Alberta, a Canadian province roughly twice the size of Germany. Hourly data used for wind and solar sites span the province’s four wind regimes and include both rooftop and largescale solar at several locations. Different systems that can achieve 80% VRE penetration are assessed. Results indicate that diversity of resources is extremely helpful to attain high VRE penetration with storage. Less windy locations can be beneficial if they have low correlation with other sites by enabling higher storage utilisation factors and lower loading powers. Lifecycle Energy Demand and Indirect Greenhouse Gas Emissions of the Electricity Sector Michaja Pehla,*, Anders Arvesenb, Florian Humpenödera, Alexander Poppa, Edgar Hertwichc, Gunnar Luderera aPotsdam Institute of Climate Impact Research, PO Box 601203, 14412 Potsdam, Germany bNorwegian University of Science and Technology – Industrial Ecology Programme cYale University, Center for Industrial Ecology, School for Forestry and Environmental Studies We calculate the need for bulk materials (cement, steel), transportation and other energy over the life cycle and de - rive the indirect energy use (IEU) of electricity production technologies by energy secondary energy carriers (solids, liquids, gases and electricity). We find that fossil fuels (coal and gas) and hydropower use 9–13% of pro - duced energy indirectly, with CCS causing an increase of about 3%. The IEU of biomass and biomass electricity and CCS (BECCS) is twice as high (25–30%), while wind, solar photovoltaic (PV), nuclear and concentrating sol - ar power (CSP) use only between 2.5% and 6% of the produced energy. For the fuel-burning technologies (coal, gas, biomass), most of the IEU is due to fuel production, handling and transportation and in the form of liquids and gases, while wind, hydro and solar technologies use most their indirect energy up-front. Day 3 Morning Sessions (11.30‐12.45) Parallel E: Post Paris Pathways‐Room G05 Exploring pathways for fulfilment of Kazakhstan’s INDC targets Bakytzhan Suleimenov, Aidyn Bakdolotov, Aiymgul Kerimray, National Laboratory Astana, Nazarbayev University Rocco De Miglio, E4SMA srl Corresponding Author: Bakytzhan Suleimenov. Email: [email protected] Keywords: INDC, energy systems modeling, emissions trading scheme The results indicate that Kazakhstan’s -15% INDC target is rather ambitious and would require facilitated construction of gas pipeline to the non-gasified regions and almost full replacement of old inefficient coal fired power plants with more efficient gas CHP plants. The successful ETS and Green Economy policies contribute to the GHG emissions reduction significantly compared to BaU, however still not sufficient to fulfill INDC targets. Other options to fulfill INDC could be stronger cap on ETS sectors, or extending ETS by including other sectors and gases. Thus, design and cap of the Fourth-Fifth National Allocation plans for the period 2020-2030 would be crucial for the fulfillment of the country’s international commitments. The marginal CO2 price in 2030 is 68 USD 2000 in ETS+Green Economy, and 87 USD 2000 in INDC - 15%. This also proves that ETS will play a crucial role in achieving INDC targets in the most economically feasible way. Nordic Energy Technology Perspectives Markus Wråke1*, Fredrik Martinsson1 János Hethey3, Anders Kofoed-Wiuff3, Nina Dupont3, Kenneth Karlsson4, Klaus Skytte4, Marie Münster4, Cristian Cabrera4, Tiina Koljonen5, Kari Espegren6, Benjamin Smith7, Brynhildur Davidsdottir8, Thomas Unger9, Mattias Bisaillon9 (1IVL Swedish Environmental Research Institute, 2International Energy Agency, 3Ea Energy Analyses, 4 DTU Management Engineering , 5 VTT Finland, 6 IFE Norway, 7 Nordic Energy Research, 8University of Iceland, 9Profu) Analysis of the Nordic energy system has relevance beyond the region itself. The five Nordic countries 1 have among the most ambitious energy and climate policy agendas in the world. Each has challenging targets, often expressed in wording such as “fossil free” or “carbon-neutral”. They are front runners in decisive policy action towards clear, long- term energy targets – including the establishment of interconnected grids and a common liberalised power market. With rich renewable energy resources, the Nordic countries are in a strong position to make a transition from fossil fuels to low- or zero-carbon energy sources. Thus important lessons can be learned both from past experiences and which challenges that will emerge 15-20 years from now in other countries that set out to transform their energy systems. Hybrid linking TIAM and IMACLIM‐KLEM: Assessing technological mitigation pathways from INDCs towards 1.5C James GLYNN 1, Frédéric GHERSI 3, Franck LECOCQ 2, Brian Ó GALLACHÓIR 1, 1 Environmental Research Institute University College Cork, IRELAND 2 CIRED 94736 Nogent-Sur-Marne CEDEX, FRANCE Bottom Up (BU) techno-economic models often times give insights into the technical possibilities to Climate Change mitigation without representing the macroeconomic transition pathways with sufficient realism and feedback. Top down (TD) macroeconomic models give greater macroeconomic realism of the long term dynamics that drive the global energy system, but suffer from a lack of technical realism. What are the financial mechanisms required invest in radical infrastructure role out? What are the requirements upon the labour force for training and employment to implement the transition? What are the achievable rates of decarbonisation without driving the global economy into recession? This long abstract outlines collaboration between CIRED and University College Cork which hybridises ETSAP-TIAM - a technology rich BU global energy systems model - with a reduced form 2 sector multi region macroeconomic (IMACLIM KLEM) TD model. We explore the feedbacks to energy service demand and economic growth in a decarbonising energy system under the perspective of new global macroeconomic reality of slower than expected growth, while aiming to move from INDC pledges towards 1.5C mitigation pathways.
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