Reserves Study 2018

Elia publishes a study assessing the needs for ancillary services to balance the Belgian control area in 2018 and the capacity of existing resources in the Belgian system to meet these needs. This study was requested by the CREG in its decision (B)120621-CDC-1162 on the approval of the applicable reserve volumes for 2013. The long-term issues of security of supply and generation adequacy study are not addressed in this study as the focus is only on the reserves required for Elia to perform real-time balancing.

Both the increased penetration of variable renewable energy resources (wind and solar) and the HVDC Interconnector between Belgium and the United Kingdom NEMO (that -given its import and export capacity- will lead to large imbalances in case of outage), will increase the challenge of balancing the system in the coming years. In the first place market actors (Balance Responsible Parties) will have to perform major additional efforts in forecasting of load and production, market participation and the pro-active development of flexibility within their portfolio to ensure to fulfil their balancing obligations. This should be supported by continued developments in terms of balancing incentives, liquid, small-resolution and close to real-time intraday markets, smart metering and smart profiling.

The study shows that additional reserve resources have to be developed towards 2018 for all reserve types either to be able to cover the needs for ancillary services and/or to cover them at a sustainable cost. Diversification is required, via e.g. participation of cogeneration units, biomass and wind in the delivery of spinning reserves (Frequency Containment Reserves, Automatic Frequency Restoration Reserves) and provision of additional upward and downward manual 15-minute flexibility from production and load.

The study is available in English. An executive summary is available in Dutch and French.

For more information, please contact Jan Voet.