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acquisitionAnnounced · Jan 8, 2026EnergySource · Unverified ReportsArticle · Factual

Calpine · Constellation

Constellation acquires Calpine

David Najork · Founding Software Engineer

Announced Jan 8, 2026 · Updated Apr 29, 2026 · 1 min read

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Deal value

—

Target

Calpine

Houston, Texas

Acquirer

Constellation

Full Acquisition

Status

Pending

Constellation agreed to acquire Calpine. Reported deal value: Undisclosed. Status: Pending. Sector: Energy. Target headquarters context: Houston, Texas, United States.

This page summarizes publicly available information about the transaction as of 2026-01-08. Figures and status may change as filings and press coverage update.

Latham & Watkins Advises Energy Capital Partners and Calpine Corporation in Completed US$26.6 Billion Acquisition by Constellation 1 01 Latham & Watkins Advises Energy Capital Partners and Calpine Corporation in Completed US$26.6 Billion Acquisition by Constellation Deals Latham & Watkins Advises Energy Capital Partners and Calpine Corporation in Completed US$26.6 Billion Acquisition by Constellation Constellation announced it has completed its acquisition of Calpine Corporation from Energy Capital Partners , creating the nation largest producer of electricity

Deal timeline

Announced

Jan 8, 2026 · legaldesire.com

Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.

Sector context

This transaction is classified in Energy. Figures and status may change as sources update.

Sources: legaldesire.com · Primary article · FireStrike proprietary index