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FLEXIBILITY AS A COST-EFFECTIVE SOLUTION TO POSTPONE GRID INVESTMENT: REQUEST GUIDELINES AND RANKING OF PROPOSALS

Local flexibility services might enable DSOs to improve the grid quality / cost ratio by cost-effectively deferring needed investments. In some cases, defining a unique required service in a request for proposals could result in missing opportunities. Indeed, many different services may be more efficient than the planned investment, depending on their cost and their ability to improve quality (by reducing lost load). This is particularly true with the Moussac Substation reinforcement investment plan, which is economically justified by N-1 situations. In this case, contracting consumption curtailment services might help during transformer outages. For this reason, Enedis has issued a request for proposals of flexibility services with an online tool that would enable actors to bid with any kind of services. The tool enables the actors to evaluate the performance of their services, and Enedis to assess the collective value of each bided service, and thus contract the most cost-effective solution from a collective standpoint. This approach is key to help actors to improve their proposals and DSOs to rank them.