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Constellation and Amazon Announce 20-Year Power Purchase Agreement Adding 190 Megawatts of Nuclear Capacity at Calvert Cliffs

Business Wire•30/09/2026•16:00 ET
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Key Highlights

  • ➤Amazon (AMZN), Constellation (CEG) sign 20-year agreement covering 690 megawatts
  • ➤190 megawatts of new nuclear capacity expected online between 2030 and 2032
  • ➤Agreement enables more than $3 billion in Maryland infrastructure investment
  • ➤Amazon adds related retail supply agreement supporting operations across 13-state PJM market
  • ➤Constellation plans to relicense Calvert Cliffs for another 20 years

Expert Statements

Joe Dominguez, Chairman, president and chief executive officer of Constellation

“This agreement demonstrates how private investment can strengthen critical energy infrastructure. Amazon’s commitment supports the long-term operation of Calvert Cliffs for generations to come and creates a strong foundation for future investment in both the facility and in advanced nuclear technologies.”

Kerry Person, Vice president of AWS Global Operations and Data Center Delivery at Amazon

“Amazon is committed to investing in carbon-free energy to strengthen the grid and benefit the communities where we operate. This long-term agreement with Constellation sustains the continued operation and expansion of Maryland's largest source of carbon-free energy, supports hundreds of jobs, and brings significant new generation to the regional grid.”

Constellation and Amazon Announce 20-Year Power Purchase Agreement Adding 190 Megawatts of Nuclear Capacity at Calvert Cliffs

Constellation (Nasdaq: CEG) and Amazon (Nasdaq: AMZN) today announced a long-term agreement that will support the continued investment in and expansion of the Calvert Cliffs Clean Energy Center, Maryland’s only nuclear plant and largest source of clean energy. The agreement will enable more than $3 billion in Maryland infrastructure investment, including state-of-the-art improvements across the entire 1,790-megawatt plant and approximately 190 megawatts in total of new, emissions-free generating capacity coming online between 2030 and 2032.

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