Energy and Atmosphere

Energy and Atmosphere
Energy and Atmosphere
The Most!
Energy and Atmosphere
Goals
‰ Reduce Energy Use and Support the Use of More Environmentally Friendly Energy Sources
‰ Stop Global Warming / Reduce GHG Emissions
‰ Eliminate / Reduce Air Pollution
Energy and Atmosphere
Energy and Atmosphere
EAP1 Fundamental Commissioning (Cx)
Required
Energy and Atmosphere
Commissioning (Cx)
The process of verifying and documenting that a building and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the owner’s project requirements (OPRs).
Energy and Atmosphere
Commissioning
Benefits of commissioning include reduced energy use, lower operating costs, reduced contractor callbacks, better building documentation, improved occupant productivity and verification that the systems perform in accordance with the owner’s project requirements.
Energy and Atmosphere
At a minimum Projects must Commission:
• Heating, ventilating, air conditioning and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls.
• Lighting and daylighting controls
• Domestic hot water systems
• Renewable energy systems (e.g. wind, solar)
Energy and Atmosphere
At a minimum Projects must Commission:
Energy and Atmosphere
Commission Process:
• Begin EARLY in Design Process
• Independent Commissioning Authority (CxA)
• OPR – Owners Project Requirements
• BOD – Basis of Design
Energy and Atmosphere
EAP2 Minimum Energy Performance
Required
Energy and Atmosphere
EAP2 Minimum Energy Performance
SCHOOLS
EPA's TargetFinder Rating Tool
ƒ Target Finder is an online tool that can establish energy performance goals for a project.
ƒ It uses data such as zip code and building type to calculate the estimated total energy use for the building, and then it assigns an energy performance rating on a scale of 1 to 100.
Energy and Atmosphere
EAP2 Minimum Energy Performance
NC, SCHOOLS & CS
OPTION 1. Whole Building Energy Simulation
ASHRAE Standard 90.1‐2007, Appendix G
OPTION 2. Prescriptive Compliance Path: ASHRAE Advanced Energy Design Guide
ASHRAE Advanced Energy Design Guide for Small Office Buildings 2004
ASHRAE Advanced Energy Design Guide for Small Retail Buildings 2006
ASHRAE Advanced Energy Design Guide for Small Warehouses and Self Storage Buildings 2008
Advanced Energy Design Guide for K‐12 School Buildings
OPTION 3. Prescriptive Compliance Path: Advanced Buildings™ Core Performance™ Guide
Energy and Atmosphere
Whole Building Energy Simulation (Modeling)
Must use the Performance Rating Method
Appendix G ‐ ASHRAE 90.1 ‐ 2007
Not Allowed ‐ Energy Cost Budget Method
Energy and Atmosphere
Energy Costs?
Annual energy costs are determined using rates for purchased energy, such as electricity, gas, oil, propane, steam, and chilled water, that are based on actual local utility rates or
the state average prices published annually by the U.S. Department of Energy’s Energy Information Administration, at www.eia.doe.gov.
Energy and Atmosphere
Process Energy
Office and general miscellaneous equipment
Computers
Elevators and escalators
Kitchen cooking and refrigeration
Laundry washing and drying
Lighting exempt from the lighting power allowance (e.g., lighting integral to medical equipment) and other (e.g., waterfall pumps).
Energy and Atmosphere
Regulated (non‐process) Energy
Lighting
Heating, ventilating, and air conditioning (HVAC)
Service water heating for domestic or space heating purposes.
Energy and Atmosphere
Strategies to Increase Energy Performance
Reduce demand
Harvest free energy
Increase efficiency
Recover waste energy
Energy and Atmosphere
EAP3 Fundamental Refrigerate Management
Required
Energy and Atmosphere
Requirements
Zero use of CFC‐based refrigerants in new base building HVAC&R systems.
Comprehensive CFC Phase‐out Plan
Energy and Atmosphere
Refrigerants
Global Warming Potential ‐ GWP
Ozone Depletion Potential ‐ ODP
Energy and Atmosphere
Energy and Atmosphere
Natural Refrigerants
CO2 – Carbon dioxide
H2O – Water
NH3 – Amonia
HC – Hydrocarbons, such as propane, butane, ethane, isobutene, and isopentane
Air
Energy and Atmosphere
Montreal Protocol
CFCs HCFCs
2010
2030
Energy and Atmosphere
OZONE Depletion
CFCs
HCFCs
Halons
Energy and Atmosphere
Energy and Atmosphere
On‐Site Renewable Energy Sources
Energy and Atmosphere
On‐Site Renewable Energy Sources
Eligible On‐site Systems
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Photovoltaic
Wind energy
Solar thermal
Biofuel‐based electrical
Geothermal heating
Geothermal electric
Low‐impact hydroelectric power
Wave and tidal power
Energy and Atmosphere
On‐Site Renewable Energy Sources
Ineligible On‐site Systems
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Architectural features
Passive solar strategies
Daylighting strategies
Geo‐exchange systems (ground‐source heat pumps)
Energy and Atmosphere
Measurement and Verification
Energy and Atmosphere
Measurement and Verification
IPMVP
Option B – Energy Conservation Method Isolation
Option D – Calibrated Simulation
Energy and Atmosphere
Green Power
Energy and Atmosphere
Green Power
NC, SCHOOLS & CS
Engage in at least a 2‐year renewable energy contract to provide at least 35% of the building’s electricity from renewable sources, as defined by the Center for Resource Solutions’ Green‐e Energy product certification requirements.
Energy and Atmosphere
All purchases of green power shall be based on the quantity of energy consumed, not the cost.
OPTION 1. Determine Baseline Electricity Use
Use the annual electricity consumption from the results of EA Credit 1: Optimize Energy Performance.
OR
OPTION 2. Estimate Baseline Electricity Use
Use the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey (CBECS) database to determine the estimated electricity use.
Energy and Atmosphere
Green Power
Renewable energy certificates (RECs), tradable renewable certificates (TRCs), green tags and other forms of green power that comply with the technical requirements of the Green‐e Energy program may be used to document compliance with this credit.