Constellation Energy vs. NextEra Energy: Which Utilities Stock Is a Better Buy for 2027?

As the energy transition accelerates, choosing the right utility exposure is critical for long-term growth. Constellation Energy (NASDAQ:CEG) and NextEra Energy (NYSE:NEE) offer two distinct paths into the future of power.

Constellation Energy focuses on clean generation through its massive nuclear fleet, while NextEra Energy combines a regulated Florida utility with a massive renewable energy development business. Both companies are essential players in the shift toward decarbonization, but they carry different risk profiles and growth drivers.

The case for Constellation Energy

Constellation Energy operates as a leader in carbon-free power, managing the largest private-sector nuclear fleet in the United States. The company provides electricity to roughly 2.5 million customers, including approximately three-fourths of the Fortune 100 companies. Notable recent agreements include a 20-year power purchase agreement with Microsoft (NASDAQ:MSFT) and a deal with Meta to power data centers with emissions-free nuclear energy.

In FY 2025, the company reported revenue of nearly $25.5 billion, representing growth of approximately 8.3% compared to the previous year. Net income reached close to $2.3 billion during the same period, indicating a net margin of roughly 9.1%. This performance followed a year where net margin was higher, showing how fluctuations in energy prices and operational costs can impact bottom-line results.

As of its December 2025 balance sheet, the company maintains a electric utility stocks profile with a debt-to-equity ratio of approximately 0.6x. This metric, which measures total debt against shareholder equity, suggests a conservative approach to leverage. The current ratio stands at nearly 1.5x, showing the company has sufficient short-term assets to cover its liabilities, while free cash flow reached roughly $1.3 billion after subtracting capital expenditures from operating cash.

The case for NextEra Energy

NextEra Energy operates as a dual-threat utility, housing both Florida Power & Light and NextEra Energy Resources. Florida Power & Light serves more than six million customer accounts across Florida, while the Resources segment focuses on wind and solar generation for wholesale markets. This structure allows the company to benefit from a stable regulated customer base while pursuing aggressive growth in the clean energy sector.

During FY 2025, the company generated revenue of approximately $27.5 billion, which was an increase of nearly 11% over the prior year. Net income for the period reached close to $6.8 billion, resulting in a net margin of roughly 24.9%. The company has consistently maintained high net margin levels compared to many peers due to its large-scale operations and efficient generation assets.

As of its December 2025 balance sheet, the company carries a debt-to-equity ratio of nearly 1.8x, reflecting the capital-intensive nature of building massive renewable energy projects. The current ratio is roughly 0.6x, indicating that current liabilities exceed current assets at this point in time.

Risk profile comparison

Constellation Energy faces risks related to commodity price volatility for fuel and unhedged power generation, which can cause significant fluctuations in earnings. Operational risks are also a major factor, as managing a nuclear fleet involves complex outage schedules and strict regulatory requirements for waste storage. Furthermore, the company must successfully integrate the Calpine acquisition without losing key personnel or facing unexpected liabilities.

NextEra Energy is subject to extensive federal and state regulation, particularly from the Florida Public Service Commission and the Federal Energy Regulatory Commission. The company is highly vulnerable to weather-related impacts, such as hurricanes, which can disrupt the Florida grid and increase maintenance costs. Additionally, NextEra Energy faces litigation risks including shareholder derivative actions and challenges related to its reliance on clean energy tax credits.

Valuation comparison

NextEra Energy appears slightly more affordable based on earnings estimates, while Constellation Energy offers a lower entry point based on trailing sales.

Valuation metrics include sourcing from Financial Modeling Prep (FMP) and may differ from other data providers.

In the table above, the Forward P/E compares the stock price to future earnings estimates for the next year. The P/S ratio measures the stock price against sales over the past twelve months.

Which stock would I buy for 2027?

I'd go with Constellation Energy, though I'll admit this one is a close call. NextEra is a strong business, but Constellation owns the nuclear fleet that supplies the around-the-clock, carbon-free power data centers want, and customers are signing long-term agreements to get it.

In Q2 2026, Constellation beat earnings estimates and raised its full-year outlook, while locking in more power contracts running 15 to 20 years. Analysts expect double-digit earnings growth when it reports Q3 on Nov. 9.

NextEra has earned its place in more than a few long-term portfolios for good reason. In Q3 2026, adjusted earnings rose nearly 10% and its backlog of new renewable and storage projects kept growing. But challenges remain: Revenue missed estimates again, and growth depends on heavy capital spending.

For investors thinking in years rather than quarters, owning the plants that deliver power around the clock is a direct way to benefit as AI data centers multiply. Demand for reliable electricity keeps climbing, and Constellation already owns plenty of it.

Sara Appino has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Constellation Energy, Microsoft, and NextEra Energy. The Motley Fool has a disclosure policy.