TYNDP 2013-2022 SJWS #3
Demand
TYNDP 2013-2022 – 3rd SJWS
08 March 2012
ENTSOG offices -- Brussels
TYNDP 2011-2020 Feedback
Climatic criteria and alternatives
> Seasonal scenarios are more meaningful than yearly ones
> Additional top-down scenarios considering macro-economic indicators (population,
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GDP) the implementation of environmental and energy policy and alternative fuel
mixes
Impact of intermittent renewable power generation on gas demand
Inclusion of third-countries as Norway and Turkey
Higher transparency on the (individual) TSO’s underlying assumptions
Consistent TSOs’ underlying assumptions
Comparative approach with other outlooks
> Coordination with ENTSO-E needs to be ensured
> Other outlooks could be also used in the modelled scenarios
> Analysis would have to be developed in order to check the consistency with renewable
energy on a country-specific basis
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Previous Discussion
TYNDP 2011-2020
> Current report covers:
• Demand scenario coming from TSOs (best estimates)
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• An Average Daily Demand
• A High Daily Demand (1-in-20 in most countries)
• Annual demand scenarios coming from Eurogas, IEA and Primes
• An Average Daily Demand
Only TSOs and Primes scenarios provide data on a country basis
SJWS#1 Input
> ENTSOG should introduce an additional demand scenario based on MSs’ demand
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forecasts
A list of criteria should be defined for consideration by TSOs when forecasting
demand, incl. a check list for national Renewables Action Plans (NREAPs)
Transparency of assumptions and the origin of the forecast may be more
important than a common set of criteria
It is necessary to combine bottom-up and top-down approach
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Improvement directions
1.
Upgrade the consistency and transparency in the assumptions
and methodologies
2.
Attention to power generation dynamics: link between
electricity and gas systems
3.
Consideration of the EU political goals
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Demand Scenario vs. Demand Case
Scenario
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A demand scenario defines the gas demand evolution during the
forecasting horizon, consequence of the assumptions taken for a certain
number of variables explaining the environment on which, the gas demand
is evolving. A demand scenario may include one or several demand cases.
Case
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A demand case defines the gas demand level on a temporary basis (yearly,
seasonal, daily, …). Different daily demands under different conditions
(temperature, working day….) are demand cases under a single demand
scenario.
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Definition of Scenarios and Cases
Consistency and transparency in the defined scenarios
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The TSOs bottom-up scenario will be the main demand scenario considered in
TYNDP.
The clarification of the underlying assumptions in the TSOs demand forecasts
has been identified as the feasible improvement target. It’s possible extent
and level of detail is being analysed, and will be discussed in following SJWSs.
Other demand issues that will be investigated and further discussed in the
future are:
• The introduction of additional top-down scenarios
• The collection and inclusion of the gas demands projected in the NREAPs.
Definition of demand cases
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The implementation of the consistency and transparency targets may be
approached through the definition of demand cases under harmonized levels
of risk.
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High daily (peak) Cases
The high daily demand in TYNDP 2011-2020
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The EU high daily demand forecast has been limited to the aggregation of the
high daily demand level for each country.
These high daily demand levels are estimated by TSO under different risk
levels according to the national standards.
These values define the network requirements in terms of transmission
capacity determining the network development needs. Therefore have to be
understood as the most influential value of any TSO’s demand estimations.
The perceived lack of consistency
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The diverse levels of risk – defined under national standards – may have
induced the perception of lack of consistency.
The demand figures in TYNDP should be consistent with the demand figures
used in the national plans  The determination of consistent demand cases
will be done in addition and will not replace the demand level defined under
the national standards.
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High daily (peak) Cases
Simultaneity of occurrence
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A priori, assuming the simultaneous occurrence of the peak demand in every
country may seem an unrealistic scenario.
A deeper analysis of the gas demand simultaneity will be required.
Gas Demand for power generation
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The gas demand for power generation must be treated independently.
Consistency is required between ENTSOE’s and ENTSOG’s TYNDPs.
> Electricity generation scenarios
> Installed capacities of gas fired power generation facilities
The installed capacities ma give an idea of the potential gas consumption of
the power generation facilities, but it will be probably far from the expected
peak demand consumptions.
The analysis of electricity generation scenarios is out of the scope of gas TSOs
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High daily (peak) Cases
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A complete approach of the high daily demand will have to track:
> consistency between the figures in TYNDP and National Plans
> consistency between the figures from different countries
> consistency with the electricity TYNDP
> the lack of simultaneity in the occurrence of the high daily demands
TSO’s purely bottom-up case
Non-power generation
Power Generation
Design Case (DC)
Installed capacity
potential consumption
Undiversified Peak
Diversified Peak
ENTSOE’s required data
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High daily (peak) Cases
DC: Design Case
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The design case is the high level of demand calculated according to the
national standards that is used by TSO’s to assess the network capacities and
needs of development. The design case is the high daily demand considered in
the national plans. It is disaggregated between gas for power generation, and
gas demand for other uses.
UP: Undiversified Peak
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The undiversified peak is the high level of demand calculated by TSOs under a
harmonized level of risk, following a common methodology – when possible.
This demand case considers the simultaneous occurrence of the so calculated
high level of demand in every country.
DP: Diversified Peak
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The diversified peak is a demand case derived from the UP level. In the
diversified peak the lack of simultaneity in the occurrence of the high levels of
demand mitigates the demand peak.
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Average Seasonal Cases
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In TYNDP 2011-2020, the average daily demand (1-in-2) was the scenario in
which the Market Integration was assessed.
A better description of the system behaviour under normal conditions, could
increase the significance of the results.
The replacement of this figure by the average winter and average summer
days reflecting the seasonal swing may favour the representativeness of the
figures.
30,000
30,000
25,000
25,000
20,000
20,000
15,000
10,000
Winter average
Average daily demand
15,000
10,000
Summer average
5,000
5,000
0
0
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Thank You for Your Attention
ENTSOG -- European Network of Transmission System Operators for Gas
Avenue de Cortenbergh 100, B-1000 Brussels
EML:
T:
WWW:
[email protected]
+ 32 2 894 5100
www.entsog.eu
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