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Fourth Power’s sci-fi thermal batteries could be cheaper than pricey natural gas power plants
techcrunch.com/2025/09/16/fourth-powers-sci-fi-thermal-batteries-could-be-cheaper-than-pricey-natural-gas-power-plantsFourth Power has raised $20 million to build a demonstration version of its thermal batteries, which ultimately could store electricity at $25 per kWh.
This story appeared on techcrunch.com, 2025-09-16 16:08:20.