Sam Altman, others invest $20 million in AI data center energy startup

An energy startup aimed at cleaning up artificial intelligence’s massive use of electricity is getting a multi-million dollar boost from investors, including the AI industry’s top leader. Exowatt, a startup developing modules that store energy as heat and produce electricity for AI data centers, is counting OpenAI chief executive Sam Altman and venture capital firm Andreessen Horowitz among its investors — to the tune of $20 million, the Wall Street Journal reported. A solar solution to AI’s energy use Exowatt …