{"id":"f23f1b55-6981-4d07-b672-b891d781049e","slug":"amazon-x-constellation-energy-calvert-cliffs-ppa","name":"Amazon x Constellation Energy (Calvert Cliffs 20-year nuclear PPA)","partnershipType":"other","status":"announced","announcedDate":"2026-09-30T00:00:00.000Z","startDate":null,"endDate":null,"summary":"Sep 30 2026 Constellation press: 20-year power purchase agreement with Amazon covering 690 MW from the Calvert Cliffs Clean Energy Center in Lusby, Maryland (1,790 MW plant), including approximately 190 MW of new capacity from a plant uprate expected online between 2030 and 2032. Enables more than $3 billion in Maryland infrastructure investment. Related retail supply agreement supports Amazon operations in the 13-state PJM market. Framed as supporting Calvert Cliffs relicensing and possible new clean-energy development at the site. Distinct from the older constellation-energy-x-aws clean-energy analytics partnership.","sources":[{"url":"https://www.constellationenergy.com/news/2026/09/constellation-and-amazon-announce-20-year-power-purchase-agreement-at-calvert-cliffs.html","title":"Constellation and Amazon Announce 20-Year Power Purchase Agreement Adding 190 Megawatts of Nuclear Capacity at Calvert Cliffs","sourceName":"Constellation Energy","publishedAt":"2026-09-30"},{"url":"https://www.streetinsider.com/Reuters/Constellation%2C+Amazon+sign+20-year+power+deal+to+support+Maryland+nuclear+plant/27129622.html","title":"Constellation, Amazon sign 20-year power deal to support Maryland nuclear plant","sourceName":"Reuters via StreetInsider","publishedAt":"2026-09-30"}],"verificationPosture":"reported","reviewStatus":"unreviewed","createdAt":"2026-10-01T01:59:28.567Z","updatedAt":"2026-10-01T01:59:28.567Z","parties":[{"id":"d573764b-b18e-468f-9095-8feaba214435","partnershipId":"f23f1b55-6981-4d07-b672-b891d781049e","companyId":"b9b40dbf-7909-4d29-9bd9-e23f21bf06f9","externalName":null,"role":"customer","createdAt":"2026-10-01T01:59:28.567Z","company":{"id":"b9b40dbf-7909-4d29-9bd9-e23f21bf06f9","slug":"amazon","name":"Amazon"}},{"id":"31f11cb4-8e1e-4499-b565-5031eab6103d","partnershipId":"f23f1b55-6981-4d07-b672-b891d781049e","companyId":"c58b73bf-4146-4763-ae35-2215299b7e57","externalName":null,"role":"technology_provider","createdAt":"2026-10-01T01:59:28.567Z","company":{"id":"c58b73bf-4146-4763-ae35-2215299b7e57","slug":"constellation-energy","name":"Constellation Energy"}}]}