Blog Posts on aFRR

What is aFRR (automatic frequency restoration reserve) and how does it work?

What is aFRR (automatic frequency restoration reserve) and how does it work? Definition The automatic Frequency Restoration Reserve (aFRR), also known as secondary reserve, is a reserve in the power grid that helps to keep the grid frequency stable. To keep the frequency within certain thresholds, the Transmission System Operators (TSOs) activate balancing services like More… (Published: 31. May 2021 by Evelyn Berschauer)
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Opening the aFRR Market in Belgium – A unique and innovative 2 step auction model

When Next Kraftwerke expanded its operations to Belgium in 2014, one of its goals was to convince the transmission grid operator Elia to open its automatic Frequency Restoration Reserve (aFRR) market for all technologies. aFRR, also known as secondary reserve, has historically been provided by a handful of gas fired power plants operated by two or three companies. (Published: 10. March 2021 by Elias, Paul)
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The (electric) engine is running – How to use EVs for grid balancing

After two years of development, in August 2020, Next Kraftwerke and Jedlix started offering secondary reserve power (aFRR) to the Dutch grid using a pool of electric vehicles (EVs). Nick Hubbers, Jedlix, and Elias De Keyser, Next Kraftwerke, talk about their ambitions, how they realized this project, and what they learned along the way on using electric vehicles to balance the grid. Fasten your seat belts and keep reading! (Published: 18. November 2020 by Lotte)
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Balancing Services

What are Balancing Services? Definition Balancing Services are reactive short-term means to level out frequency deviations in the power grid. Balancing Services (sometimes also called control reserve) is one out of many ancillary services that system operators have to provide a secure power supply. Balancing Services include Balancing Energy and Balancing Capacity . Balancing Energy More… (Published: 20. May 2020 by Marie Volkert)
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