Exowatt: heat collector, heat battery, and heat engine provides dispatchable power and heat throughout the day

https://www.businesswire.com/news/home/20240422640698/en/

"fit 40-foot shipping container, scalable... stores heat instead of electricity... heat engine enables electricity 24 hours/ day... electricity as low as $0.01/ kWh or less... deployable rapidly and cost-effectively – and it's available this year,... Exowatt is built to respond quickly to the escalating energy demands of the modern world, especially those spurred by the rapid growth of AI... backlog >500 MW for data centers"

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https://newatlas.com/technology/wartsila-hydrogen-generator/