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RWE Constructs 117MW Of Battery Systems That Are Used In Conjunction With Run-Of-River Hydropower

Last Updated on 08th January 2024

The aggregate capacity of the BESS installations will be 128MWh across the two sites, according to a RWE spokesperson. The initiative will be commercially orientated, rather than a showcase of technology or prospective business models, according to the spokesman, with the two systems primarily providing "balancing energy" for the grid and "therefore geared towards the FCR (Frequency Containment Reserve) market."


RWE has announced plans to build two battery energy storage systems (BESS) in Germany that will be "virtually coupled" with existing run-of-river hydroelectric power plants.


On July 22, the Essen-based power generation firm announced that it will install 117MW of batteries at two locations: 45MW at its Gersteinwek power plant in Lingen, Lower Saxony, and 72MW at its Emsland power plant in Werne, North Rhine-Westphalia. The battery initiatives are expected to cost roughly EUR 50 million (USD 59 million) and will be operational by the end of 2022.


The battery systems, according to RWE, can be used to increase or decrease power flow-through at hydropower plants, hence boosting the effective capacity available for use in energy system balancing markets. The hydropower generation adds roughly 15% more capacity to the battery systems, which are mostly used to keep the grid's operational frequency stable.


North-Rhine Westphalia state minister for economic affairs and energy Andreas Pinkwart said, "large battery storage systems in the megawatt category make a key contribution towards network stability in the new energy world. The implementation of this project at a power station with a tradition as long as Werne's demonstrates impressively how competence and innovative technologies can be used to design the secure energy supply of the future.


Olaf Lies, Lower Saxony state minister for environment, energy, building, and climate protection said, "the Lingen power plant is a role model for the energy transition. It's impressive how quickly the transformation from conventional electricity generation to a state-of-the-art, environmentally friendly energy world is progressing."


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