Generates electricity and sells energy products to utilities, businesses, and residential customers.
10-K for FY2025, filed Feb 24, 2026Following the merger with Calpine in January 2026, we are the largest private-sector power producer in the world and the nation’s largest…View ↗
We operate the largest emissions-free generation fleet in the nation and are one of the largest competitive electric generation companies…View ↗
Customer-Facing BusinessView ↗
Based on data from EEI, we are the nation’s largest energy supplier for C&I and residential power volumes. Through our integrated business…View ↗
Customers pay for electricity and natural gas after delivery, generally within the following month. For energy-related construction and installation projects, the company bills as work progresses and customers pay after invoices.
10-K for FY2025, filed Feb 24, 2026
10-K for FY2025, filed Feb 24, 2026
FY2025 revenue by reportable segment ↗$25.5B
10-K for FY2025, filed Feb 24, 2026
$25.5B ↗| Segment | Share | Revenue |
|---|---|---|
|
Mid-Atlantic
|
25%
FY2022: 21%
|
Mid-Atlantic, FY2025
$6.5B Sources
|
|
Midwest
|
23%
FY2022: 19%
|
Midwest, FY2025
$5.8B Sources
|
|
New York
|
8.6%
FY2022: 6.5%
|
New York, FY2025
$2.2B Sources
|
|
ERCOT
|
7.5%
FY2022: 6.3%
|
ERCOT, FY2025
$1.9B Sources
|
|
Other Power Regions
|
22%
FY2022: 28%
|
Other Power Regions , FY2025
$5.6B Sources
|
Sells electricity, natural gas, and related energy products to utilities and public bodies, businesses, and residential customers across multiple regions. Its customers include Fortune 100 companies.
10-K for FY2025, filed Feb 24, 2026
Yes. It kept 9 cents of every revenue dollar as net income in FY2025 and turned 5 cents into free cash flow.
10-K for FY2025, filed Feb 24, 2026
$3.1BView ↗
10-K for FY2025, filed Feb 24, 2026
$2.3BView ↗
10-K for FY2025, filed Feb 24, 2026
$1.3BView ↗
10-Q for Q2 FY2026, filed Aug 6, 2026
Open tableView ↗
8-K, filed Aug 5, 2026
On August 4, 2026, Robert Lawless, Chair of the Board of Directors (the “Board”) of Constellation Energy Corporation (the “Company”)…View ↗
Growing. Revenue grew 30% in 4 years, from $19.6B in FY2021 to $25.5B in FY2025, about 7% a year.
Generation mix
Calpine added geothermal generation and battery storage to a fleet the earlier report described as nuclear, hydro, wind, natural gas, and solar.
10-K for FY2022, filed Feb 16, 2023 10-K for FY2025, filed Feb 24, 2026We are the nation’s largest producer of carbon-free energy and a leading supplier of energy products and services to businesses, homes…View ↗
Retail energy platform
Calpine added a retail energy platform, expanding the customer-facing business and adding sales channels across the country.
10-K for FY2022, filed Feb 16, 2023 10-K for FY2025, filed Feb 24, 2026Our generation fleet produces more clean, carbon-free energy than any other company in the United States. We are committed to a clean…View ↗
Calpine's retail energy platform adds approximately 62 TWhs of annual load to our business, and allows us to expand our C&I and residential…View ↗
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