EC-funded study progresses battery storage
European Commission (EC) funding is supporting a project to integrate battery storage at a pumped hydro energy storage (PHES) plant in Slovakia.
The Slovakian project will be the first of its kind in Europe, delivering gigawatt-hour-scale energy storage capacity to capture surplus electricity from VVB's hydropower stations and dispatch it to the national grid when needed.
By enhancing Slovakia's energy storage capabilities, the project will: Echogen's PTES solution uses an electrically driven heat pump to convert electricity into a stored thermal differential, which is later transformed back into electricity using a high-efficiency heat engine.
Its construction should last about one year. The current underground gas storage capacity in Slovakia is about 3 billion cubic metres. The existing facilities are operated by companies Nafta and Pozagas. Another locality suitable for construction of a gas storage facility is in Ptrukša in eastern Slovakia.
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