@giotaxtech: This giant battery has been keep a small Finnish 🇫🇮 town toasty during the polar winters It’s filled with over 2,000 tones of soapstone, a cheap material that is usually discarded as the after product from industry. Towering at 13m tall and 15m wide this might not be the best solution for larger communities or higher energy requirements. #climatetech #battery #sandbattert #science #tech #explainer