Finland has inaugurated the world's largest sand battery this week, a 1 MW/100 MWh thermal storage system developed by Polar Night Energy. The industrial-scale unit in Pornainen began operating in June after district heating company Loviisan Lämpö commissioned it. The energy storage facility delivered by Merus Power to Lappeenranta, Finland, has been completed and put into market use on 15 May 2025. Swedish flexible assets developer and optimizer Ingrid Capacity has joined hands with SEB Nordic Energy's portfolio company Locus Energy to develop what is claimed to be Finland's largest and. Sweden-headquartered BESS developer-operator Ingrid Capacity will build a 70MW/140MWh project in Finland, which it claimed will be the largest in the country. Ingrid is developing the battery energy storage system (BESS) project in partnership with investor SEB Nordic Energy portfolio company Locus. Neoen (ISIN: FR0011675362, Ticker: NEOEN), one of the world's leading producers of exclusively renewable energy, has provided notice to proceed to battery storage expert Nidec, signalling the start of construction of Yllikkälä Power Reserve Two (YPR2).
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