Blog Posts on Grid Balancing

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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Frequency Containment Reserve (FCR)

What is Frequency Containment Reserve (FCR)? Definition To ensure the required grid frequency of 50 or 60 Hz (depending on the concerning country) the Transmission System Operators (TSO) of each country need instruments to maintain this reference value. These instruments are the balancing services. Balancing services are reactive short-term means to level out frequency deviations More… (Published: 26. March 2021 by Lotte Lehmbruck)
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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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Transmission Code

What is the Transmission Code? Definition The Transmission Code 2007 is a set of rules in which the four transmission system operators define the conditions to access the German electricity grid. It was first drawn up in 1998 by the Association of German Grid Operators (now "Forum Netztechnik/Netzbetrieb" as part of the VDE) in response More… (Published: 12. August 2020 by Marie Volkert)
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What is the Electricity Balancing Guideline (EBGL)?

What is the Electricity Balancing Guideline (EBGL)? Definition The Electricity Balancing Guideline (EBGL) was created by the European Commission to establish and regulate the smooth exchange of balancing energy across the internal borders of the European Union. This guideline, which came into force as Regulation 2017/2195, sets the framework for the stabilization of the electricity More… (Published: 2. June 2020 by Christian Sperling)
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Balancing group

What is a balancing group? Definition On the energy market, the balancing group (also known as the balancing authority) accounts for all power produced and/or consumed by a collection of assets within the group. Accounting for the group’s net production or consumption serves as an instrument for providing a particular operating region the precise amount More… (Published: 12. February 2019 by Nils Quak)
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