Constellation’s Full-Year 2025 Earnings Exceed Guidance as Calpine Acquisition Bolsters Power Portfolio

Earnings and Cash Flow Show Consistent Outperformance

Constellation Energy (NASDAQ: CEG) reported fourth quarter and full-year 2025 results, delivering adjusted (non-GAAP) operating earnings of $9.39 per share for 2025, up from $8.67 in 2024. This marks the fourth consecutive year Constellation’s earnings exceeded the midpoint of company guidance — a testament to both operational execution and its leading nuclear fleet.

The company’s GAAP net income for 2025 was $7.40 per share, a decrease from 2024 primarily due to fair value adjustments, but underlying operating results improved. Effective portfolio management, favorable market conditions, and superior performance at its clean energy plants contributed to these strong results.

Portfolio Expansion: Calpine Acquisition Creates Leading Power Producer

In January 2026, Constellation completed its acquisition of Calpine Corporation, creating the nation’s largest electricity producer. This combination unites Constellation’s zero-emission nuclear fleet with Calpine’s industry-leading natural gas and geothermal generation, strengthening the company’s ability to meet the growing demand for reliable, clean power.

The expanded platform is now especially well-positioned to supply the data center sector. A new 380-megawatt agreement with CyrusOne will connect a next-generation facility to the regional Texas grid. Phase 2 is set to add another 380 MW, building on last year’s 400 MW Calpine-CyrusOne agreement at Thad Hill Energy Center.

Nuclear Fleet Delivers Industry-Leading Reliability

Constellation’s nuclear fleet continues to set the standard for reliable and efficient operation. In 2025, owned nuclear plants (excluding Salem and South Texas Project) achieved a remarkable 94.7% capacity factor over the year, with 45,459 GWh produced in Q4, nearly unchanged from the prior-year quarter. Recent regulatory success included the NRC’s approval of 20-year license renewals for both the Clinton and Dresden facilities. More than $370 million will be invested in upgrades to achieve greater safety and efficiency for decades to come.

Clean Energy Growth Accelerated by DOE Loan and Data Center Demand

The Department of Energy granted a $1 billion loan guarantee to support restarting the Crane Clean Energy Center, backed by a 20-year PPA with Microsoft. This, paired with recent Calpine agreements, signals a surge in demand from technology firms and data infrastructure for low-carbon power. Constellation’s integrated assets make it a critical partner in the ongoing electrification and data economy buildout.

Dividend Growth and Capital Flexibility Support Shareholder Value

Constellation increased its annual dividend by 10% for the most recent year and expects another 10% increase in 2026, highlighting management’s confidence in cash flow growth and ongoing investment returns. The company’s balance sheet and extended platform following the Calpine acquisition offer the flexibility to both invest in future projects and reward shareholders.

Operational Metrics Highlight Grid Reliability and Sustainability

Constellation’s natural gas, oil, and renewables fleet also delivered notable reliability. Gas and pumped storage hydro achieved a 97.9% dispatch match rate for the year, while wind, solar, and hydro posted a 96.6% energy capture rate. These results underscore Constellation’s operational discipline and ability to support grid stability across regions and technologies.

Takeaway: Positioning for Growth in an Electrifying Economy

Constellation’s 2025 results reinforce its strategic value as a leader in low-carbon energy, bolstered by its Calpine acquisition and readiness to meet the demands of an electrifying economy. With robust earnings, a growing dividend, and new commercial partnerships, the company is navigating the shifting landscape with scale and discipline. Investors will learn more about 2026 guidance at the company’s March 31 Business and Earnings Outlook call.

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