Facebook and Instagram parent Meta will soon start drawing on nuclear energy to support its AI efforts.

Meta has signed a 20-year contract with power giant Constellation Energy to keep an Illinois nuclear power plant running to power the tech giant’s data centers. Nuclear energy from the Clinton Clean Energy Center will be used to support Meta’s operations in the region starting in 2027, Meta said in an announcement Tuesday. 

“As we look toward our future energy needs in advancing AI, we recognize the immense value of nuclear power in providing reliable, firm electricity,” Meta said.

Generative AI models, ca Meta AI, require massive amounts of power to process and analyze data. On Monday, Meta announced that it’s developing AI systems that may fully automate ad buying and creation.

Meta, which also owns WhatsApp, joins other tech titans that have zeroed in on nuclear projects to power their energy-hungry AI. Last fall, Amazon, Google and Microsoft each announced plans for nuclear projects.