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Distributed Storage

Italian startup releases 9.8 kWh sodium battery for residential applications

Italy-based Heiwit has developed a 200 Ah sodium-ion battery with a lifespan of 6,000 cycles. The device reportedly offers thermal stability and rapid charging speed.

India launches 2 GW solar, 4 GWh storage tender

Solar Energy Corp. of India (SECI) has launched a tender for 2 GW of solar generation capacity paired with 4 GWh of energy storage, requiring bidders to install a minimum of 500 kW/2 MWh storage per megawatt of solar awarded.

Cost of living, government rebates accelerate Australia’s solar and battery booms

Recent studies forecast Australia is on the precipice of a rooftop solar and household battery boom, predicting record breaking installation numbers driven by falling battery and solar module prices, government rebates and cost-of-living pressures.

Spanish lab develops sodium-ion cell with sustainable materials

Spain’s Instituto Tecnológico de la Energía (ITE) has built a prototype sodium-ion battery cell using high-potential materials and a sustainable polymer-based separator, as part of the SOSBAT project to develop alternatives to lithium-ion storage.

Utrecht energizes vehicle-to-grid car sharing service

The Dutch municipality of Utrecht has become the first city in Europe to introduce a vehicle-to-grid (V2G) car-sharing service. It features Renault 5 E-Tech electric cars that run on clean energy and feed power back to grid the during peak-demand times.

China’s SNEC 2025 show highlights PV industry resilience, storage growth

Chinese solar manufacturers showed resilience at the 2025 SNEC PV Power Expo in Shanghai despite a deepening supply glut, as strong demand for energy storage and emerging technologies offset a steep drop in new PV module launches. Tunnel oxide passivated contact (TOPCon) stayed dominant, while back-contact, perovskite, and lithium iron phosphate (LFP) storage solutions gained traction.

Optimizing endless PV-driven heat pump scenarios for costs, self-sufficiency

Researchers have used mixed-integer linear programming-based multi-objective optimization to optimize 30,912 unique scenarios showing heat pumps operating in combination with PV power. The optimization modeling was conducted under day-ahead spot market prices terms.

How organic flow batteries could erase the need for critical-mineral dependency

Vanadium flow and lithium-ion batteries both require materials described as critical by the US Department of Energy (DOE).

US battery supplier Powin files for bankruptcy

Oregon-based battery system integrator Powin faces rising tariffs as it imports lithium iron phosphate (LFP) battery components from China.

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World’s largest 1 MW/100 MWh sand battery commissioned in Finland

Finnish startup Polar Night Energy has commissioned the world’s largest sand battery in Pornainen, southern Finland. The industrial-scale system delivers 1 MW of thermal power with 100 MWh storage capacity, covering up to a month’s summer heat demand and nearly a week’s winter demand for the local district heating network.

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