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G-PST/ESIG Webinar Series: Ancillary Services from an Energy System with a High Share of Variable Renewable Energy (VRE)
January 26 @ 4:00 pm - 5:00 pm EST
Featured Speaker: Thomas Dalgas Fechtenburg, Senior Manager, Energinet

Thomas Dalgas Fechtenburg
About the Webinar: The Danish power system has one of the highest annual shares of energy from renewables, primarily from wind energy, of any large power system in the world. This webinar will describe the full range of issues associated with obtaining essential reliability services from a system with a high share of VRE, ranging from the demands for services arising from a high share of VRE to the optimal market framework for obtaining those services, including daily market auctions, product size, and settlement process. The participation of VRE in the ancillary service markets will be described, along with the qualification process, including dialogue with the plant owners, testing, and regulatory approval. Security of supply is of paramount importance. The use of VRE forecasting to ensure reliability will be described, as well as the dynamic dimensioning of reserves to ensure equal risk level in different operational scenarios, i.e. high wind / low wind. The objective is to provide both system operators and project developers a view of a process which has worked well to ensure operational reliability during the clean energy transition.
About the Speaker: Thomas Dalgas Fechtenburg has been an energy engineer at Energinet in the department of Ancillary Services since 2016 and a senior manager since 2022. His experience includes:
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- Developing technical requirements and markets for reserves based on the needs of the synchronous areas.
- Implementing EU requirements in national codes, testing, prequal and monitoring of units.
- Leading Danish TSO-DSO collaboration to enable trade with local flexibility to resolve local bottlenecks.
- Enabling flexible consumption and RE to provide ancillary services.
Moderator: Charlie Smith, Executive Director, ESIG
Registration Cost: FREE
Q&A Session: We will be using the slido platform for Q&A. Please submit your questions and follow-along during the event at this link.