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acquisitionAnnounced · Jan 26, 2026EnergySource · CredibleArticle · Factual
Constellation Energy acquires Calpine
David Najork · Founding Software Engineer
Announced · Updated · 1 min read
Deal value
$26.6B
Target
Calpine
Houston, Texas
Acquirer
Constellation Energy
Full Acquisition
Status
Completed
Constellation Energy agreed to acquire Calpine. Reported deal value: $26.6B. Status: Completed. Sector: Energy. Target headquarters context: Houston, Texas, United States.
This page summarizes publicly available information about the transaction as of 2026-01-26. Figures and status may change as filings and press coverage update.
Constellation Energy Corp . has finished its $26.6 billion acquisition of Calpine Corp . , operator of most of the geothermal power plants in The Geysers field straddling Sonoma and Lake counties
Deal timeline
Announced
Jan 26, 2026 · pressdemocrat.com
Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.
Sector context
This transaction is classified in Energy with a reported deal value of $26.6B. Figures and status may change as sources update.
Sources: pressdemocrat.com · Primary article · FireStrike proprietary index