The North Seas Countries' Offshore Grid Initiative - Initial ... - Benelux

A 1.2 Market Modelling I - b)Initial Dispatches
A 1.2.1 Overview of Market Modelling
The market modelling tools used in the NSCOGI studies simulate the electricity market
behaviour for a one year period in hourly time steps. The modelling tools schedule the
production of electricity by generators to meet demand at least cost while satisfying
operational and security constraints. In general, each country is represented as a single
market node (with some exceptions) with its generation portfolio and hourly electricity
demand. The market models optimise the production of electricity across all market nodes
taking into account economic trading of electricity across interconnections. The hourly
production values for each generation category and hourly commercial exchanges
between the market nodes within the modelled perimeter are output from the model. The
models calculate the variable cost of production comprising fuel costs, CO emissions
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costs and the variable operational and maintenance costs (VOM) of operating generation
plan (excluding fuel and CO costs).
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The Net Transfer Capacities (NTCs) set the limit for commercial exchanges between
market nodes in the market model and these are not exceeded in the model.
For this study, the TSOs used three market simulation tools in parallel (Antares,
PowerSym4 and PROMOD IV). For the studied scenario, the results of the three simulation
tools were compared in depth enabling the TSOs to verify the results and to increase the
quality of the market analysis.
A 1.2.2 Market Model Setup
A regional database, containing detailed 2030 generation and load data submitted by the
TSOs in each of the NSCOGI member countries (shaded in blue in Figure 7-3), was used to
model the power system within the NSCOGI geographic perimeter. This model matched
the details of the scenario and additional assumptions described in Chapter 3.
ENTSO-E’s 2020 Pan European Market Modelling Database (PEMMDB), collated during
preparation of ENTSO-E’s Ten Year Network Development Plan (TYNDP) 2012, was used to
model the European power system outside the North Sea Region as follows:
1. Generation and load data for neighbouring countries, shaded orange in the map in
Figure 7-3, were included in the market model in detail similar to the PEMMDB to
address market behaviour across the boundaries with NSCOGI countries.
2. The market beyond the neighbouring countries was modelled using fixed hourly
commercial flows between the neighbouring countries and those beyond. These
commercial power flows were derived for each scenario from the PEMMDB Europewide
market analysis.
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