Research · Sep 3, 2026
[CEG] Constellation Energy Thesis 2026: Calpine Acquisition Closing + Three Mile Island Restart + Hyperscaler PPAs Anchor Largest US Nuclear + Natural Gas Combined Platform
Constellation Energy FY2025 revenue ~$25-26B (-2 to +2%) with adj. EPS ~$8.50-9.00 reflecting continued nuclear capacity factor strength (94-95% industry-leading) + selective hyperscaler PPA execution + Three Mile Island Unit 1 restart partnership with Microsoft + selected power price normalization in capacity markets. Largest US nuclear power producer (~21GW nuclear capacity) + diversified clean energy generator (~32GW total). Spun off from Exelon February 2022 as standalone clean energy generator. CEO Joe Dominguez since 2022 (background: ex-Exelon Generation CEO + ex-Exelon Senior VP General Counsel). Nuclear fleet 23 reactors at 14 sites: Limerick + Peach Bottom + Calvert Cliffs + Braidwood + Byron + Dresden + LaSalle + Quad Cities + Three Mile Island Unit 1 restarting + selected. Three Mile Island Unit 1 restart partnership with Microsoft September 2024 (20-year PPA at ~$0.10+/kWh average — first US nuclear PPA at premium pricing for hyperscaler; Crane Clean Energy Center rebrand; ~$1.6B project; targeting 2027-2028 commercial operation). Calpine $26B all-stock + cash acquisition announced January 10, 2025 (combine nation's largest nuclear with largest natural gas IPP creating ~60GW combined capacity; expected 2026 close subject to regulatory approvals; $200-400M annual synergies year-3). IRA Inflation Reduction Act nuclear Production Tax Credit ~$15/MWh floor for nuclear at sub-$25/MWh prices declining linearly to $0 at $45/MWh. Capital return: dividend $1.55/share + buybacks $1-2B; net debt $8-9B; Baa1/BBB investment grade. FY2026 thesis: Calpine closing + TMI restart + hyperscaler PPAs + IRA PTC. Risks: Calpine regulatory approval, nuclear regulatory environment, power price volatility.