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

Figure 7-2 High level Process overview
A 1.1 Market Modelling I -a) Adequacy
The Security of Supply in the Region will be a function of the available generation
capacities and the demand profiles: there should always be enough generation resources
to cover the demand with a sufficient degree of certainty. Therefore, as a first step in the
overall process, the generation adequacy of the provided NSCOGI Reference Scenario was
assessed, with the goal of having the possibility to increase the generation capacities in
case of shortages.
As a start a simplified shallow adequacy assessment method was used, by checking the
reserve margins in each individual country as well as the margin for the entire NSCOGI
Region. The reserve margin is defined as the ratio between installed capacity and annual
peak load. Sufficient reserves are necessary in a system to cope with for instance
unforeseen outages and maintenance of generating units.
It should be noted that reserve margin can only be used as a preliminary indicator. Final
adequacy judgements should be done with detailed models.
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