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Ten-Year Network Development Plan 2017 Main Report
F.4 List of main assumptions
and inputs
Stakeholders provided the feedback that they were
missing an overview of the assumptions and inputs
for modelling. As an answer to this feedback, the main
assumptions and inputs for the TYNDP modelling have
been listed below.
F.4.1 DEMAND
Demand scenarios
Storylines to assess a wide enough range of possible futures. Scenario development
is part of the stakeholders joint working sessions.
Gas demand
Fixed input to the simulation. It is fixed at country level, or balancing zone level for
multi-zones countries.
The demand data is defined for every demand scenario and simulation case:
\\
Whole year simulation case: the demand is composed of an average summer
(AS = 7 months) and an average winter (AW = 5 months).
\\
Design case: high demand on a peak day.
\\
2-week cold spell case: high demand on 14 consecutive days that can
happen once every 20 years, based on the average daily demand.
For further information, refer to Chapter 2.4.
Demand data
Assumptions provided by the TSOs according to the storylines defined for the
scenarios, the demand data is the aggregation of the final gas demand (industrial,
transport, residential and commercial) and the gas demand for power generation.
Data for gas-fired power generation is based on ENTSO-E data.
For further information, refer to Annex C.
Demand modelling assumptions
\\
Design case: the peak day demand is simulated on 31 January.
\\
2-week cold spell: high demand event simulated during the 2
nd
half of
February.