Constellation Energy
Nuclear power for AI data centers
America's largest nuclear operator. Restarting Three Mile Island Unit 1 for a 20-year Microsoft PPA. Operates 21GW carbon-free generation.
Nuclear, solar, grid — powering it all
The foundation of everything. US data center demand growing from 19GW (2023) to 35GW (2030). Big tech signed 10GW+ of new US nuclear capacity in 2025 alone. The AI boom has triggered a nuclear renaissance — Microsoft, Google, Meta, Amazon all signed major nuclear PPAs.