Social media company Meta signed a 20-year power purchase agreement (PPA) for nuclear energy.

The agreement was signed with Constellation for the output of the Clinton Clean Energy Center to support Meta’s clean energy goals and operations in the region with 1,121 megawatts of emissions-free nuclear energy. 

Beginning in June of 2027, the agreement supports the relicensing and continued operations of Constellation’s high-performing Clinton nuclear facility for another two decades after the state’s ratepayer funded zero emission credit (ZEC) program expires. 

This deal will expand Clinton’s clean energy output by 30 megawatts through plant uprates.

“We are excited to partner with Constellation and the Clinton community to ensure the long-term operations of the nuclear plant, add new capacity, and help preserve over 1,000 jobs. Securing clean, reliable energy is necessary to continue advancing our AI ambitions,” said Urvi Parekh, Head of Global Energy at Meta, in a statement. “We are proud to help keep the Clinton plant operating for years to come and demonstrate that this plant is an important piece to strengthening American leadership in energy.”

The PPA will enable the Clinton Clean Energy Center to continue to flow power onto the local grid, providing grid reliability and low-cost power to the region for decades to come. Meta is purchasing the plant’s clean energy attributes as part of its commitment to match 100% of its electricity use with clean and renewable energy.

An analysis by The Brattle Group found that closing Clinton would raise emissions by more than 34 million metric tons of carbon over 20 years.

The agreement with Meta will allow Constellation to add more new, clean, reliable energy to the grid in the Midcontinent Independent System Operator’s (MISO) zone four territory, covering central and southern Illinois.