The Southern Company

Overview

Southern Company is one of the largest electric and gas utility holding companies in the United States, serving approximately 9 million customers across the Southeast and Midwest. The company operates three regulated electric utilities, Georgia Power, Alabama Power, and Mississippi Power, along with four gas distribution companies under the Southern Company Gas umbrella, and a wholesale power subsidiary called Southern Power. Its nuclear operations are managed by Southern Nuclear, which runs the company's nuclear fleet, including the newly completed Vogtle Units 3 and 4 in Georgia.

Southern Company has been led by Christopher Womack since May 2023, when he succeeded Tom Fanning as CEO; he added the chairman's role in December 2023 and serves as chairman, president, and chief executive. Womack previously served as president of Georgia Power. David Poroch became chief financial officer on July 31, 2025, succeeding Daniel Tucker. The company is one of the most capital-intensive utilities in the country, and it has repeatedly enlarged its investment program as load growth accelerated: the five-year plan has gone from $48 billion for 2024 through 2028 to $81 billion for 2026 through 2030, covering grid modernization, generation additions, and infrastructure upgrades across its service territory.

The company's service territory spans some of the fastest-growing regions in the U.S. Georgia in particular has attracted significant manufacturing investment and data center development. Successive Georgia Power resource plans have revised load forecasts sharply upward: the 2023 Integrated Resource Plan update projected 6,600 MW of additional load through the winter of 2030/31, roughly 17 times the estimate in the prior 2022 IRP, and the 2025 IRP approved by regulators in July 2025 projects about 8,500 MW of load growth, roughly 90% of it from data centers. Across the Southern system, the company had about 11 GW under contract with 28 large-load projects as of early 2026, against a prospective pipeline it puts near 75 GW. Those numbers have reshaped the company's generation procurement strategy.

Business operations

Financial performance

Southern Company reported FY2025 revenue of $29.6 billion, up 10.6% from $26.7 billion in FY2024. Net income was $4.3 billion, with diluted earnings per share of $3.94, down from $4.02, while adjusted EPS rose to $4.30 from $4.05. The gap between the two reflects charges excluded from the adjusted figure; the underlying improvement came from customer growth and higher usage, particularly from data centers, alongside a full year of Vogtle output, partly offset by higher financing costs. In the first quarter of 2026 revenue was $8.4 billion and adjusted EPS was $1.32, and management maintained full-year 2026 adjusted EPS guidance of $4.50 to $4.60. Southern raised its dividend for a 25th consecutive year, to an annualized $3.04 per share.

Long-term debt stood at approximately $65.6 billion at the end of 2025, up from about $59.9 billion in mid-2024, reflecting decades of capital investment, the cost overruns on Vogtle, and the pace of current spending. That debt load is heavy but consistent with capital-intensive regulated utility operations, and Southern Company's capital structure is supported by investment-grade credit ratings and the predictability of rate base earnings at the subsidiary level.

The five-year capital plan of $81 billion for 2026 through 2030 is one of the largest among U.S. utilities by absolute dollar volume, with roughly a quarter of it tied to serving large-load customers. The spending is concentrated in transmission and distribution upgrades, new generation, and grid modernization to accommodate the load growth being driven by data center development in Georgia and broader economic expansion across the service territory. Part of the funding is federal: in February 2026 Southern secured $26.5 billion in Department of Energy loans for its Georgia and Alabama utilities, which the company projects will save customers about $7 billion over 30 years. Executing the plan still requires sustained regulatory support for rate base recovery at each operating subsidiary.

Vogtle Units 3 & 4

The construction of Vogtle Units 3 and 4 near Waynesboro, Georgia was the most consequential and complicated project in Southern Company's history. The two AP1000 pressurized water reactors, each approximately 1,100 MW, were originally planned to enter commercial service in 2016 and 2017 at a combined cost of roughly $14 billion. Unit 3 achieved commercial operation in July 2023. Unit 4 followed in April 2024. Total project cost exceeded $30 billion, with Georgia Power's net share reaching approximately $10.65 billion.

The overruns reflected the near-total absence of new nuclear construction experience in the U.S. workforce, persistent supply chain failures for first-of-a-kind AP1000 components, the 2017 bankruptcy of the original contractor Westinghouse Electric, and difficult site conditions. Toshiba, Westinghouse's corporate parent, settled with Southern Company for approximately $3.7 billion before the project completed. On December 19, 2023 the Georgia Public Service Commission voted 5-0 to approve a prudency stipulation that set a hard cap on Georgia Power's total approved recovery of Vogtle capital costs at $7.562 billion, of which $2.1 billion was already in rate base. Under that settlement Southern Company shareholders absorb roughly $2.6 billion of the construction cost, which is not recoverable from ratepayers.

With all four units now operational, Plant Vogtle is the largest nuclear power plant in the United States by capacity at approximately 4.4 GW. The completed new units produce zero-carbon baseload power with a projected 20-to-40-year operating life, and their output is contracted through the Southern Company system. At a time when demand for firm, non-intermittent clean power is rising from data centers and industrial customers, the fully operational Vogtle fleet is a structural asset regardless of the painful construction history.

Strategy & outlook

Southern Company's near-term strategy is centered on building generation capacity fast enough to serve the load growth concentrated in Georgia. The 2025 IRP, approved by the Georgia Public Service Commission in July 2025, authorized a large block of new generation to meet that demand. Georgia Power is adding natural gas peaking and combined-cycle capacity, utility-scale solar and battery storage, and evaluating additional nuclear options including small modular reactors. Long-term demand commitments from data center operators and manufacturing facilities underpin the load forecasts.

Those commitments acquired a name in July 2026, when Georgia Power announced a 25-year power supply agreement with OpenAI to serve a data center campus in Effingham County that is expected to need roughly 3,200 MW. The agreement includes up to 1,000 MW of flexible demand response, letting Georgia Power curtail deliveries to the site to protect grid reliability, and the company says OpenAI is responsible for the full cost of the infrastructure and electric service it requires, with financial assurances intended to shield existing customers. It is the first large-load counterparty Southern has named publicly, and it converts an abstract pipeline number into a specific, contracted obligation.

The longer-term trajectory depends significantly on rate case outcomes across the three electric utilities. Recovering $81 billion in capital investment over five years requires Georgia Power, Alabama Power, and Mississippi Power to win rate cases that approve new investments at reasonable allowed returns. Southern Company has generally had workable regulatory relationships in its states, but the scale of capital being deployed creates rate affordability tension as customers see rising bills. Regulators have responded to that tension directly: in July 2025 the Georgia PSC approved a plan freezing Georgia Power base rates through at least 2028, which limits how quickly the utility can pass new investment through to existing customers and puts more weight on large-load customers covering their own costs. The company is also retiring coal capacity aggressively, targeting an 80% reduction from 2007 levels by 2028, which requires replacement generation to be in place before each unit comes offline.

Key considerations

Vogtle's construction is complete, but cost recovery is not fully resolved. Future rate cases at Georgia Power will need to incorporate the full Vogtle operating cost base, including depreciation, operations and maintenance, and financing costs for both new units, and the Georgia PSC's willingness to allow full recovery in future proceedings remains uncertain. The roughly $2.6 billion shareholders absorb under the 2023 stipulation is a closed loss, but the ongoing regulatory relationship around Vogtle operations will shape Georgia Power's earnings for decades.

The $81 billion capital plan is only executable if Southern Company can continue accessing debt markets at manageable rates and maintain investment-grade credit ratings with about $65.6 billion of long-term debt already on the balance sheet. Accelerated load growth in Georgia is a real tailwind that supports incremental capital recovery through rates, but execution risk on permitting, procurement, and construction for multiple large projects simultaneously is substantial. If data center and industrial load growth materializes at the projected pace, the investments will be well-supported in rates; if projects slow or cancel, the company will have invested ahead of demand with limited recourse.

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