Microsoft has signed an agreement with Constellation Energy Corporation to restart the Three Mile Island nuclear facility in Pennsylvania to provide clean energy for its artificial intelligence business, Cointelegraph reported.

Under the agreement, Constellation will provide Microsoft with 835 megawatts of power and invest approximately $1.6 billion to bring the facility online by 2028. The agreement still requires approval from the Nuclear Regulatory Commission and state and local governments.

Industry leaders from tech giants such as OpenAI, Microsoft, and Google discussed the future of AI energy infrastructure at the White House on September 12. AI data centers cost between $3 million and $5 million per megawatt to operate.

In 1979, a partial meltdown at the Three Mile Island nuclear facility led to the evacuation of residents. The Nuclear Regulatory Commission said the accident caused no environmental or health hazards.