Meta is seeking as much as 4 gigawatts of new nuclear energy as the company looks for a reliable electricity source for its data centers.

The Facebook parent is asking developers to submit proposals to deliver 1 to 4 GW of reactor capacity, starting in the early 2030s, according to a statement Tuesday. Commercial nuclear reactors generate about 1 GW of electricity, enough for 750,000 typical homes.

Meta is racing to line up clean energy to meet the massive electricity needs of its artificial intelligence ambitions. Like fellow tech giants Amazon and Google parent Alphabet, it’s now pursuing a tantalizing but hard-to-develop energy source — nuclear power.