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See the full story · 2 sourcesThe World’s Largest Sand Battery Is Now Online

Modern power grids require a constant, real-time balance between supply and consumption. Unfortunately, the integration of wind and solar energy makes power grids unstable due to the intermittent nature of renewable energy generation. To prevent localized grid blackouts or harmful voltage spikes, utilities are increasingly pairing renewables with battery storage and/or rapid-response natural gas plants to smooth out fluctuating supply. However, Finland has now come up with a rather eccentric method to store excess renewable energy and release it…
