Investors are turning to nuclear energy equities amid rising demand for clean baseload power and supportive regulatory developments. Two companies—NextEra Energy (NEE) and Southern Company (PWR)—emerge as top contenders for long-term portfolio exposure.
- NextEra Energy (NEE) has 10 GW of nuclear capacity and plans $12 billion in infrastructure investments by 2030.
- Southern Company (PWR) owns 5.4 GW of nuclear power and is investing $1.8 billion in Vogtle Units 3 and 4.
- Vogtle Units 3 and 4 are scheduled for commercial operation in late 2026.
- Federal incentives include a 30% tax credit for new nuclear and $6 billion in loan guarantees.
- Nuclear contributes 24% of NEE’s generation and 42% of PWR’s, above the national average of 18%.
- NEE and PWR outperformed the S&P 500 in March 2026, with returns of 7.3% and 5.8%, respectively.
NextEra Energy (NEE) and Southern Company (PWR) are among the most actively discussed nuclear energy stocks in early March 2026, reflecting renewed investor interest in utility firms with significant nuclear generation capacity. NEE, the largest U.S. electricity holding company, operates over 10 gigawatts (GW) of nuclear power capacity through its subsidiary Florida Power & Light, with plans to invest $12 billion in existing nuclear infrastructure upgrades by 2030. PWR, a major southeastern utility, owns three operating nuclear units with a combined output of 5.4 GW and has committed $1.8 billion toward extending the operational life of its Vogtle Units 3 and 4, which are expected to begin commercial service in late 2026. The push for nuclear energy is being driven by federal incentives, including the Inflation Reduction Act's 30% investment tax credit for new nuclear projects and the Bipartisan Infrastructure Law’s $6 billion in loan guarantees for advanced reactor development. These policies are expected to reduce capital risk and accelerate project timelines. As of Q4 2025, NEE’s nuclear fleet contributed 24% of its total generation, while PWR’s nuclear assets accounted for 42% of its energy mix—significantly higher than the national average of 18%. Market reactions have been positive: NEE shares rose 7.3% month-to-date in March 2026, outperforming the S&P 500’s 3.1% gain, while PWR gained 5.8%, reflecting investor confidence in stable, low-carbon power generation. Both companies have maintained investment-grade credit ratings, with NEE at BBB+ and PWR at A-1, underscoring their financial resilience. The broader impact extends to the defense and energy security sectors, as nuclear power plants are increasingly viewed as critical infrastructure. Utilities with diversified clean energy portfolios, including nuclear, are also gaining favor with institutional investors focused on ESG metrics and energy independence.