Scholt Energy and Enervalis put Giessenwind wind farm into service for grid balancing

The Giessenwind wind farm near Giessenburg will be put into service by Scholt Energy and Enervalis starting in the middle of July on the market for regulated capacity (aFRR) of the national grid operator TenneT.

Giessenwind Wind Farm is thus the first decentralized sustainable energy source for Scholt Energy to provide TenneT with this particular capacity. In order to integrate the wind farm on TenneT’s digital platform, Scholt Energy served as a balancing service provider (BSP) alongside software developer Enervalis.

With seven chosen parties, including Scholt Energy working with Enervalis, TenneT launched a pilot in 2018. Fossil power plants, such as those powered by coal or natural gas, are playing a smaller and smaller balancing role as we move toward a sustainable energy system. A CO2-free alternative to maintain the equilibrium between the supply and demand of electricity, ensuring the stability of the electrical grid, is emerging as the number of decentralized, sustainable energy sources rises quickly. Decentralized energy sources are capable of supplying regulating power for balancing, according to the results of the pilot phase, which was completed last summer.

Communication technology

To enable TenneT and suppliers of flexible electricity generation to exchange the necessary information for balancing, new data communication technologies were put to the test in the pilot. The blockchain-based Crowd Balancing Platform Equigy made this possible. Additionally, Equigy enables smaller energy producers to provide their electricity for the balancing of the energy system and to be compensated for doing so.

The Giessenwind wind farm, a decentralized energy source, has now been deployed in TenneT’s production environment by Scholt Energy and Enervalis as the first to do so using the Crowd Balancing Platform Equigy (CBP).

Reduce overproduction

Three 3 MW wind turbines with an axle height of 108 meters make up the 2013 Giessenwind wind farm along the A15. A battery with a capacity of about 1 MWh was set up here in May 2017. The Enervalis Platform receives information from the wind turbines every four seconds about the current production level and the anticipated level given the current wind speed. These two values differ when TenneT receives regulating power. With this type of regulating capacity, the grid’s overproduction—when there is too much electricity fed into the grid relative to demand—can be reduced. The Giessenwind wind farm is currently being used in part as well.

Image source: TenneT

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