Southern or Duke: Which Utility Dividend Holds Up Against the Data Center Buildout
Both Southern Company and Duke Energy are locking in massive data center contracts, but funding billions in new generation while protecting a retirement income payout creates a tension only one of them has actually solved.
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A retirement-focused investor weighing Southern Company (NYSE:SO | SO Price Prediction) against Duke Energy (NYSE:DUK) faces a plain question: which utility can pay for the data center expansion without pressuring the dividend? Both are signing large power contracts across their territories. Both must fund new generation, protect credit ratings and keep raising the payout from the same pool of cash. Investors have cooled on both. Southern is down 8.17% over the past year, while Duke is down 3.42%.
Dividend Yield and Track Record: Duke Pays More Today
Duke yields 3.76% against Southern’s 3.62%. Duke lifted its quarterly payout to $1.085 from $1.065, a 2% raise that marked over 20 years of consecutive annual dividend increases. Its annualized forward dividend is $4.34.
Southern moved its quarterly dividend to $0.76 from $0.74, for a forward rate of $3.04. Its steady raises trace back to a $0.4725 quarterly payment in 2012. Duke also trades cheaper, at a forward P/E of 16 versus 17. Winner: Duke.
Balance Sheet Capacity: Southern Carries More Cushion
Coverage looks safe at both. Southern expects 2026 adjusted EPS near the top of its $4.50 to $4.60 range, while Duke reaffirmed $6.55 to $6.80. The real test is funding capex without leaning on shareholders.
Duke runs a $103 billion five-year capital plan, spending more than $1 billion per month. It targets 14.5% FFO to debt (operating cash flow relative to debt, where higher means more breathing room) in 2026 and 15% longer term. It has priced $600 million of at-the-market equity this year and plans no large-block issuance.
Southern targets roughly 17% FFO to debt by 2029, a stronger credit bar. After sourcing $700 million of equity in the second quarter, its remaining equity need through 2030 fell to $1.1 billion. Its large-load contracts carry about $21 billion of collateral. One catch: open generation RFPs in Alabama and Georgia sit outside its capital plan, so fresh wins would add spending. Winner: Southern.
Regulatory Backdrop and Signed Load: Southern Has Clearer Visibility
Southern’s retail base rates are held stable in Georgia and Alabama until 2029, and its minimum bills cover 100% of the incremental cost to serve. Signed deals include a 3.2 gigawatt, 25-year contract with OpenAI near Savannah, beginning service in phases in 2028, bringing total contracts and large-load agreements to over 17 gigawatts by the mid-2030s (the utilities signing these deals are only half the trade, and we profiled seven other AI infrastructure suppliers, from power to cooling, in a free report you can grab here). The 75 gigawatt-plus pipeline is prospective. The blemish is Nicor Gas, where Illinois regulators rejected capital investment.
Duke has 7.8 gigawatts of signed data center agreements, plus a 15.4 gigawatt pipeline it only projects converting by the first half of 2027. Its North Carolina DEC settlement sets a 9.8% ROE, but the DEP case remains under negotiation, orders are due by mid-November 2026, and an Indiana filing is ahead. Winner: Southern.
Verdict: Southern Is the Stronger Dividend Anchor
Southern takes this comparison for retirement income investors. It pairs a tighter credit target, a small remaining equity need and heavily collateralized contracts with rate stability through 2029, which makes its payout the harder one to disrupt as capex rises.
Duke does win on paper income and price. Duke offers a higher yield, trades at a lower multiple and has beaten EPS estimates five quarters straight, including $1.43 against $1.31 expected. Analysts agree: Duke has zero sell ratings, while Southern has two sells and one strong sell. Investors seeking maximum yield today will prefer Duke.
Duke’s North Carolina orders in November and Southern’s RFP selections, which management expects to clarify by year-end, are worth watching.
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Chris Lange is a financial and geopolitical writer with more than a decade of experience covering a myriad of topics. He has published thousands of articles for 24/7 Wall St., with past coverage focused heavily on stocks, IPOs, healthcare, defense, global affairs, and technology.
His work has been quoted, or referenced by a number of outlets including Business Insider, USA Today, Yahoo Finance, MSN, The Motley Fool, and many other publications. A graduate of Southwestern University, he studied business with a focus on investments and has previous experience in banking and startups.
When not reading or writing the news, he is following his passion for Lacrosse, playing chess, or building solar projects with his dad.
