17 May 2021

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Caldera launches ‘game-changing’ flexible domestic heat battery Warmstone

British start-up Caldera is launching a new large-scale domestic heat battery, capable of providing low carbon heat by utilising excess renewable energy on the grid. The battery is based around its patented technology Warmstone, which can be heated overnight using cheap, green, off-peak electricity. It then discharges heat throughout the day to power heating and …

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Caldera Warmstone heat battery offers ‘game changing’ low-carbon technology for homes

Homes could be kept warm with giant “heat batteries” developed by a British start-up that has won backing from the government and external investors. Caldera, based in Hampshire, uses cheap off-peak power and electrical elements to heat a huge highly-insulated block of material called Warmstone, made from recycled metals and aggregate. A coil of water …

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Start-up aims to warm Scotland’s rural homes with battery innovation

A Hampshire-based start-up has launched a new domestic heat battery, which it claims can decarbonise thousands of Scottish homes. Caldera’s Warmstone battery heats up overnight using off-peak electricity and then releases this during the day. The company believes the rollout of its technology in rural areas could provide gigawatts of energy storage from renewable sources …

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