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Jun 26, 2026 - Africa`s biggest dam is running. So why are millions still in the dark?

Jun 26, 2026 - The End of Coal: How Atlantic Canada`s Winds Could Solve the Energy Crisis

Jun 25, 2026 - General Atomics pursues facility to test & develop technology for nuclear fusion energy to Poway

Jun 24, 2026 - Clean Energy Era Is Now: Build Grids, Scale Renewables Fast - UN Chief Remarks

Jun 24, 2026 - Why Finland Solved Nuclear Waste and the U.S. Still Isn`t Close

Jun 24, 2026 - America`s Most Important Dam Has a Design Flaw Nobody Is Talking About

Jun 24, 2026 - The Cheapest Energy Source Ever? Wave Power at 1 Cent Per kWh
Trending Now: Solar, Wind, Grid

Jul 5, 2022 - How the world`s first sand battery stores green power



The world`s first fully working "sand battery", which can store green power for months at a time, has been installed by Finnish researchers. The developers said this could solve the problem of year-round supply, a major issue for green energy. Using low-grade sand, the device is charged up with heat made from cheap electricity from solar or wind. The sand stores the heat at around 500C, which can then warm homes in winter when energy is more expensive.