Amazon and Constellation Energy Sign $3B Nuclear Power Deal

Key Facts

1Amazon and Constellation Energy signed a 20-year power purchase agreement for 690 megawatts.

2The deal includes 190 megawatts of new nuclear capacity at the Calvert Cliffs plant and is valued at over $3 billion.

3Constellation Energy raised its full-year 2026 adjusted operating earnings guidance following the agreement.

Amazon and Constellation Energy signed a 20-year power purchase agreement for 690 megawatts to support Amazon's data center operations. Ad Hoc News reported that the deal includes 190 megawatts of new nuclear capacity at the Calvert Cliffs plant and is valued at over $3 billion. Following the agreement, Constellation Energy raised its full-year 2026 adjusted operating earnings guidance.

CEG closed at $267.62 on October 5, 2026, while AMZN closed at $251.40 on the same date. This strategic move secures long-term carbon-free energy for Amazon's AI infrastructure expansion, while providing Constellation Energy with enhanced revenue visibility and increased production capacity.