heat storage

June 16, 2025
A district network heating operator in Finland has commissioned a 1MW/100MWh thermal energy storage project using novel ‘Sand Battery’ technology from Polar Night Energy.
January 16, 2025
Finnish telecoms firm Elisa will manage the charging activity of a 100MWh ‘Sand Battery’ project, optimising its activity in the country’s electricity reserve market.
December 12, 2024
A roundup of energy storage news from across the EU, involving Polar Night Energy’s ‘Sand Battery’ in Finland, GazelEnergie and Q Energy in France, and Spain’s MITECO awarding financial support to 45 projects.
November 1, 2024
A 100MW thermal solar and molten salt energy storage system in Xinjiang, China, is set to be completed and grid-connected by the end of the year, part of a project which has deployed conventional solar PV.
May 20, 2024
Saudi Arabian oil firm Aramco has entered into a memorandum of understanding (MOU) with Rondo Energy, a thermal energy storage company, following an equity investment.
April 25, 2024
Hyme Energy has inaugurated a molten hydroxide salt energy storage project in Denmark, the first such deployment in the world, it claimed.
November 29, 2023
AES Andes has received environmental review approval for a 560MW project in Chile converting an existing coal plant to renewable energy and energy storage, using a molten salt-based technology.
September 6, 2023
Thermal energy storage companies Kyoto Group and Brenmiller have inaugurated and won funding approval for projects in Denmark and Israel, respectively.
August 17, 2023
Thermal energy storage company Rondo Energy has completed a US$60 million fundraising round from investors including Rio Tinto, Microsoft, Aramco and Energy Impact Partners.
June 29, 2023
A state agency in Estonia has provided €5.2 million (US$5.7 million) in grants for 10 energy storage projects, including a 4MW/8MWh battery storage project from utility Eesti Energia.

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