Finland''s wild sand battery boosts heat efficiency 10x, slashes
Finland is turning one of the planet''s most ordinary materials into a high impact climate tool, using hot sand to store vast amounts of energy and release it as heat when homes and factories
Energy Stored in Sand – Polar Night Energy Builds the Future
Based in Tampere, Polar Night Energy Oy has developed a sand-based thermal energy storage system that efficiently stores heat generated from renewable energy while minimizing costs.
Innovative thermal energy storage pilot
Polar Night Energy''s 3 MWh test pilot project in Hiedanranta, Tampere, represented a significant step in thermal energy storage technology. The pilot allowed for testing, validation, and optimization of our
Tampere
Explore the Tampere project from Ren-Gas, an e-Fuel initiative that converts captured CO₂ into sustainable synthetic fuels, supporting cleaner energy and transport solutions.
New ''sand-in-motion'' battery offers 10x more heat transfer efficiency
Finland''s sand battery offers 10x more heat transfer efficiency, cuts energy bills by 70% The architecture of the new technology supports high vertical and horizontal scalability.
One of Finland''s largest energy storage facilities commissioned in
TAMPERE, Finland, July 03, 2025 (GLOBE NEWSWIRE) — The energy storage facility delivered by Merus Power to Lappeenranta, Finland, has been completed and put into market use on 15 May 2025.
Tender Information for the Energy Storage Project in Tampere,
As Finland accelerates its transition to renewable energy, the energy storage project in Tampere stands out as a critical infrastructure development. This tender aims to address grid stability challenges
Tampere University is leading an EU consortium to enhance eco
The EU funded ARMS-project aims to enhance the energy density of supercapacitors, devices used for energy storage, without sacrificing their eco-friendliness. The project strives to
Finland: Taaleri Energia & Merus Power 36MWh battery storage
Taaleri Energia and Merus Power have partnered to deploy a 30MW/36MWh battery energy storage system in Finland, one of the country''s largest.
Polar Night Energy advances in the development of a new sand battery
To validate and refine the process, Polar Night Energy is developing a pilot plant to be built in 2025 near Tampere, Finland. This pilot will focus on optimizing thermal storage and the efficient
BESS Containers
20ft/40ft BESS containers from 500kWh to 5MWh with liquid cooling, grid-forming inverters – ideal for utility and industrial microgrids.
Industrial Microgrids
Complete microgrid systems with islanding, genset integration, and real-time optimization – reducing diesel consumption and improving reliability.
PV & Foldable Containers
Plug-and-play photovoltaic containers with foldable solar arrays (10–200kWp) for rapid deployment in remote areas and off-grid microgrids.
Telecom Tower ESS
48V LiFePO4 battery storage and DC power systems for telecom towers – reduces diesel runtime and ensures 24/7 uptime.