Google is officially putting its weight behind advanced “mini” nuclear reactors in an effort to produce new clean to meet growing AI energy demands. On Tuesday, the company announced an agreement with California-based small nuclear reactor (SMR) startup Kairos Power to commission the development of six or seven reactors that could add 500 megawatts of clean energy to the US electrical grid within the next decade.

Google is adding nuclear plants to its seemingly ever-growing portfolio. The company has partnered with Kairos Power to back the construction of seven small nuclear reactors in the U.S. It’s the first agreement of its kind.

Google has signed a deal to use small nuclear reactors to generate the vast amounts of energy needed to power its artificial intelligence (AI) data centres. The company says the agreement with Kairos Power will see it start using the first reactor this decade and bring more online by 2035.