Battery storage and its use in the reserve market is increasing – why?

Wind farms are being built all over Finland, perhaps with the exception of the easternmost regions, and solar power is gaining popularity, both among private households and on an industrial scale. At the same time, Fingrid is building new connections and substations. Grid energy storage is increasing at an accelerating pace, especially in terms of capacity. These developments are somehow linked.

TuuliWatti Oy is building the largest electrical battery in in the nordic countries in Ii Viinamäki wind park. Without any subsidization built Viinamäki wind park and very large size battery are scheduled to be ready in autumn 2019.