Duke Energy to Backtrack on Retirement of Coal Units Despite Clean Energy Proposal

Cayuga gernating station - Courtesy Duke Energy
Duke Energy, one of the largest electric utilities in the U.S., has signaled a potential reversal on its plans to retire several coal-fired power plants, despite earlier commitments to transition toward cleaner energy sources. According to a recent report by the Indianapolis Star (July 1, 2025), the company is reconsidering the closure of coal units in favor of extending their operational life, possibly converting some to natural gas. This decision comes amid growing energy demand and challenges in scaling alternative power sources.

Why the Backtrack?

The article suggests Duke Energy’s shift is driven by the need to ensure a reliable power supply. The company has faced delays and uncertainties in developing new renewable energy projects, such as wind and solar, which may not yet meet the growing electricity needs of its service areas. Additionally, the retirement of coal plants was tied to a 2021 clean energy proposal; however, rising demand—potentially driven by industrial growth or electrification trends—may have outpaced the pace of renewable deployment. Converting coal units to natural gas could serve as a bridge, offering a less carbon-intensive option while new infrastructure catches up. 
The IndyStart Writes

In April, President Donald Trump signed an executive order with the aim to reinvigorate the industry in the United States, and in a similar fashion, Gov. Mike Braun subsequently directed state agencies to consider extending the lives coal plants across Indiana.

The settlement between REI and Duke proposes to do just that. After REI’s initial opposition to shutting down the two coal plants, Duke agreed to study the feasibility of keeping the two plants online. But one stipulation of the agreement is that the coal study and sale cannot affect the construction, cost or operation of the new gas units.

It’s unclear what the feasibility study might show, according to Protogere.

The coal plants at Cayuga are currently using infrastructure the natural gas plants would need, like a switchyard and the transmission lines that direct power out of the site. And the coal plants are old. Last month, Protogere told IndyStar the aging plants would require “significant investment” to maintain.

Clean energy is a contentious term in Indiana

Earlier this year, Duke petitioned for the original project under a statute allowing natural gas units to qualify for clean energy incentives if they displace coal-fired electricity generation.

The incentive Duke asked to use would allow the utility to charge its customers in advance for construction of the natural gas project — even before it goes online.

There isn’t a seller lined up yet, but “say a data center comes in, those two coal units can power the data center,” Kerstiens said. Then, “if you’re a Duke ratepayer, you’re not on the hook for paying for that data center.”

Implications for Investors

For investors, this backtrack presents a mixed outlook. On one hand, maintaining coal operations could stabilize short-term revenue and dividends, as coal remains a reliable baseload power source. However, it risks long-term exposure to stricter environmental regulations and potential penalties, especially if federal or state clean energy mandates become more stringent. The shift to natural gas might mitigate some carbon concerns, but it also requires capital investment, which could strain finances if not offset by rate hikes or subsidies.

Key Indicators

  1. Dividend Yield and Payment History: Duke Energy offers a current dividend yield of approximately 3.57%–3.62%, with an annual dividend of $4.18–$4.19 per share. The company has paid dividends for 99 consecutive years and increased them for 18 consecutive years, indicating a strong historical commitment.
  2. Payout Ratio: The dividend payout ratio is around 69%–75%, based on recent earnings per share (EPS) of $6.03. This suggests that Duke Energy distributes a significant but manageable portion of its earnings as dividends, leaving room for reinvestment or resilience against downturns. A ratio below 80% is generally considered sustainable for utilities.
  3. Earnings and Cash Flow: Duke’s profitability rank is strong (around 8/10), with a 3-year EPS growth rate of approximately 36.2% annually. However, cash flow coverage appears limited, as some sources note the company has no significant free cash flows, which could pose a challenge if earnings falter.
  4. Debt and Capital Expenditures: With an $83 billion five-year capital plan and rising interest expenses, Duke’s debt levels and equity funding needs ($6.5 billion over five years) could strain finances. Utilities typically carry higher debt, but excessive leverage could threaten dividend stability if not offset by rate increases or regulatory support.
  5. Growth and Demand: Anticipated load growth of 3-4% starting in 2027, driven by economic development, supports long-term revenue potential. However, delays in renewable projects and the decision to retain coal units may increase regulatory or operational risks, impacting future earnings.

Sustainability Assessment

  • Strengths: The consistent dividend growth, reasonable payout ratio, and stable utility business model suggest sustainability in the near term. The company’s regulated operations provide predictable cash flows, supporting its 99-year dividend streak.
  • Concerns: Limited free cash flow, high capital expenditures, and potential regulatory pressures from coal retention could challenge long-term sustainability. A payout ratio nearing 75% leaves less buffer if earnings decline, especially with rising debt costs.

Investor Considerations

  • Monitor future earnings reports (next expected in early August 2025) for updates on cash flow and debt management.
  • Watch for regulatory outcomes on coal and gas transitions, which could affect profitability.
  • A yield of 3.57%–3.62% is attractive for income investors, but diversification is wise given potential volatility from policy shifts.

Overall, Duke Energy’s dividend appears sustainable in the short term, supported by its track record and earnings coverage. However, long-term stability depends on effectively managing debt and transitioning to cleaner energy sources.

Investors should monitor Duke Energy’s next earnings report for clarity on capital expenditure plans and how the company balances regulatory compliance with profitability. The stock may see volatility as markets react to the environmental policy shift, so a diversified approach or consultation with a financial advisor is prudent. The company’s ability to execute a smooth transition to cleaner energy in the future will be key to long-term value. While monitoring what happens to the two older coal plants, do they get sold to a data center?