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  1. Home
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  3. Energy & Utilities
  4. Southern Power
Southern Power logo
Energy & Utilities

Who Owns Southern Power?

Southern Power is owned by Southern Company (NYSE: SO), a publicly traded American energy utility headquartered in Birmingham, Alabama. Established in 2001, Southern Power operates as Southern Company's wholesale generation subsidiary, selling electricity at market-based rates through long-term power purchase agreements. At December 31, 2025, Southern Power's fleet totaled 12,648 MW of nameplate capacity in commercial operation.

Parent Company

Southern Company

Founded

2001

Status

Private

Headquarters

Birmingham, Alabama, USA

Southern Power Timeline

1945
Southern Company

Parent company established in Atlanta, Georgia, USA

Company Founded
2001

Southern Power

Founded by Southern Company (internal development)

Founded
United StatesOfficial Website

Who Owns Southern Power?

  • Parent Company: Southern Company
  • Ownership Type: Wholly owned
  • Company Type: Publicly Traded
  • Stock Ticker: NYSE: SO
BrandParent CompanyOwnership Type
Southern PowerSouthern CompanyWholly owned

History of Southern Power

  • Founded: 2001
  • Founders: Southern Company (internal development)

Southern Power was established in 2001 as Southern Company's entry into the competitive wholesale power generation market. The subsidiary was created to develop, construct, acquire, own, and operate power generation assets that sell electricity at market-based rates, distinct from Southern Company's regulated utilities that serve retail customers in defined service territories.

In its early years, Southern Power focused on natural gas-fired combined cycle power plants. These facilities provided baseload and intermediate generation capacity for wholesale customers across the southeastern United States. Natural gas plants remain a significant portion of Southern Power's portfolio, providing reliable dispatchable generation that complements the company's growing renewable fleet.

Starting in the 2010s, Southern Power began diversifying into renewable energy. The company developed and acquired solar and wind facilities, often in partnership with tax equity investors who provide capital in exchange for tax benefits associated with renewable energy projects. Southern Power is the controlling partner in most of its renewable facility partnerships.

By the mid-2010s, Southern Power had built a substantial renewable portfolio. The company acquired the 299 MW Kay wind facility in Oklahoma and developed multiple solar projects including the 200 MW Millers Branch solar facility in Georgia. Southern Power also entered the battery energy storage market, recognizing that storage would be essential for integrating intermittent renewable generation into the grid.

As of December 31, 2025, Southern Power's generation fleet totaled 12,648 MW of nameplate capacity in commercial operation. This includes natural gas, wind, and solar facilities. Projects under construction at that date include the McGrau Ford Phase 1 battery energy storage project (265 MW, expected Q4 2026), the Millers Branch Phase I solar project (200 MW, expected February 2026), and the Kay wind facility (200 MW, expected Q3 2026).

Southern Company's announcement of plans to invest over $80 billion over five years beginning in 2026 signals continued growth for Southern Power's generation portfolio. This investment is directed at strengthening grid infrastructure, expanding generation capacity, and deploying advanced technologies including battery energy storage and carbon capture.

About Southern Company

What does Southern Company own?
Southern Company owns a portfolio of regulated utility subsidiaries including Georgia Power (electric utility serving 2.7 million customers in Georgia), Alabama Power (electric utility serving 1.5 million customers in Alabama), Mississippi Power (electric utility serving 200,000 customers in Mississippi), Southern Power (wholesale power generation), and Southern Company Gas, which operates Atlanta Gas Light, Nicor Gas, and Virginia Natural Gas. Together, these subsidiaries serve over 9 million customers across multiple states.

Is Southern Company publicly traded?
Yes. Southern Company is publicly traded on the New York Stock Exchange under ticker SO. The company is owned by its shareholders, with no single controlling shareholder. Major institutional shareholders include Vanguard Group, BlackRock, and State Street Corporation.

When was Southern Company founded?
Southern Company was founded in 1945 as a holding company for various utility operations in the southeastern United States. The company has grown through consolidation of regional utility companies and strategic acquisitions over the decades.

How many customers does Southern Company serve?
Southern Company serves over 9 million customers through its subsidiaries. This includes approximately 4.4 million electric customers served by Georgia Power, Alabama Power, and Mississippi Power, and approximately 4.4 million natural gas customers served by Atlanta Gas Light, Nicor Gas, and Virginia Natural Gas.

What are Southern Company's main subsidiaries?
Southern Company's main subsidiaries include Georgia Power, Alabama Power, and Mississippi Power (regulated electric utilities), Southern Power (wholesale power generation), and Southern Company Gas, which operates Atlanta Gas Light, Nicor Gas, and Virginia Natural Gas (natural gas distribution).

Who leads Southern Company?
Christopher C. Womack serves as Chairman, President, and CEO of Southern Company. He assumed the role in 2023 and is the first African American to lead a major U.S. energy company. Womack previously served as CEO of Southern Company Gas and as executive vice president of Southern Company.

  • Founded: 1945
  • Headquarters: Atlanta, Georgia, USA
  • Company Type: Publicly Traded
  • Stock: NYSE: SO
  • Revenue: $29.6 billion (FY2025)
  • Employees: approximately 29,887

Visit Southern Company website

View full company profile for Southern Company

Where Is Southern Power Made / Based?

  • Headquarters: Birmingham, Alabama, USA

Southern Power Categories & Tags

ElectricityWholesale PowerRenewable EnergyUtilitiesSouthern CompanyAmerican Brand

Southern Power Sustainability & Ethics

Southern Power's sustainability profile is shaped by its role in the energy transition. The company's generation portfolio includes both fossil fuel (natural gas) and renewable (solar, wind) assets, reflecting the practical reality of maintaining grid reliability while transitioning to cleaner energy sources.

Southern Company has committed to achieving net-zero greenhouse gas emissions by 2050 across its system. This commitment applies to Southern Power's operations. The company's strategy for meeting this target includes retiring or converting older natural gas plants, expanding renewable generation, and deploying carbon capture technology. Southern Company is investing in carbon capture research through its subsidiary, Southern Company Services, and has partnered with technology companies on pilot projects.

Southern Power's renewable energy projects contribute to Southern Company's decarbonization goals. Each solar and wind facility displaces fossil fuel generation that would otherwise be needed to meet electricity demand. The company's battery energy storage projects support the integration of intermittent renewable generation by storing excess solar and wind power for use when generation is low.

Environmental compliance is a significant operational consideration. Southern Power's natural gas facilities are subject to Clean Air Act emissions standards, including limits on nitrogen oxides and sulfur dioxide. The company's solar and wind projects undergo environmental impact assessments to address concerns about land use, wildlife habitat, and visual impact. Wind facilities have faced scrutiny over bird and bat mortality, and Southern Power implements mitigation measures at its wind sites.

Southern Power's partnership with tax equity investors on renewable projects raises questions about the transparency of tax benefit allocation. The company structures its renewable projects as partnerships in which tax equity investors receive tax benefits (investment tax credits or production tax credits) in exchange for capital contributions. This structure is standard in the U.S. renewable energy industry but has been criticized by some policy advocates who argue that tax equity structures primarily benefit large financial institutions.

Southern Power Recalls & Controversies

Southern Power has not been subject to product recalls, as the company operates power generation facilities rather than manufacturing consumer products. No significant safety incidents at Southern Power facilities have been reported in recent public records.

Southern Company, the parent company, has faced controversies that indirectly affect Southern Power's reputation. In 2023, Southern Company agreed to pay a $5,000 penalty to the North Carolina Utilities Commission related to disclosure requirements. This was a minor regulatory matter and did not involve Southern Power directly.

Southern Company has faced broader criticism for its historical reliance on fossil fuel generation, particularly coal. The company retired its last coal-fired power plant in 2024, a milestone in its decarbonization strategy. However, environmental groups have argued that Southern Company's transition away from fossil fuels has been too slow, pointing to the company's continued investment in natural gas generation. Southern Power's natural gas fleet is part of this debate, though the company argues that natural gas provides necessary dispatchable generation to complement intermittent renewables.

Southern Power's renewable projects have occasionally faced local opposition. Solar farm development can raise concerns about agricultural land conversion, particularly in rural communities. Wind projects have faced opposition related to visual impact, noise, and wildlife effects. Southern Power addresses these concerns through environmental assessments, community engagement, and mitigation measures, but opposition to specific projects is a recurring challenge in the renewable energy development sector.

The company's Kemmerer Station project in Wyoming, a proposed small modular nuclear reactor (SMR) facility being developed by TerraPower with Southern Company involvement, has generated both support and skepticism. The project represents a potential pathway to zero-carbon baseload generation, but SMR technology remains unproven at commercial scale. This project is not directly under Southern Power but reflects the broader strategic context of Southern Company's generation portfolio.

Brands Owned by Southern Company

Alabama PowerEnergy Utilities

Alabama Power

Owned by Southern Company

Alabama-based electric utility company serving millions of customers across the state, owned by Southern Company.

electricityutilitiesalabama
Atlanta Gas LightEnergy Utilities

Atlanta Gas Light

Owned by Southern Company

Georgia-based natural gas utility company serving millions of customers across the state, owned by Southern Company.

natural-gasutilitiesgeorgia
Georgia PowerEnergy Utilities

Georgia Power

Owned by Southern Company

Electric utility serving over 2.7 million customers across Georgia. Wholly-owned subsidiary of Southern Company (NYSE: SO), headquartered in Atlanta. Operates Plant Vogtle, the largest nuclear generator in the United States.

electricityutilitiesgeorgia
Mississippi PowerEnergy Utilities

Mississippi Power

Owned by Southern Company

Electric utility subsidiary of Southern Company serving over 500,000 customers along the Mississippi Gulf Coast. Reported 2025 operating revenues of $1.7 billion.

electricityutilitiesmississippi
Nicor GasEnergy Utilities

Nicor Gas

Owned by Southern Company

Natural gas utility serving 2.3 million customers across northern Illinois. Owned by Southern Company (NYSE: SO) through its Southern Company Gas subsidiary. Headquartered in Naperville, Illinois.

natural-gasutilitiesillinois
Virginia Natural GasEnergy Utilities

Virginia Natural Gas

Owned by Southern Company

Natural gas distribution utility serving southeastern Virginia, wholly owned by Southern Company (NYSE: SO).

natural-gasutilitiesvirginia
View all brands owned by Southern Company

Southern Power Ownership: Pros & Cons

Advantages

  • +Access to Southern Company's substantial capital resources and investment-grade credit rating
  • +Integration with one of the largest U.S. energy utilities, providing operational expertise and scale
  • +Diversified portfolio across natural gas, solar, wind, and battery storage reduces technology risk
  • +Long-term PPAs provide predictable revenue streams with contracted cash flows
  • +Benefit from Southern Company's $80 billion five-year capital investment plan

Considerations

  • -Exposure to wholesale electricity market dynamics when existing PPAs expire and require recontracting
  • -Environmental scrutiny of natural gas generation as decarbonization pressures intensify
  • -Regulatory and policy changes affecting renewable energy tax credits and incentives
  • -Local opposition to renewable energy project development in some communities
  • -Dependence on Southern Company's corporate priorities for capital allocation and project approval

Frequently Asked Questions About Southern Power

Sources & Further Reading

  • Southern Company Investor Relations -
  • Southern Power Official Website -
  • Southern Company 2025 Annual Report (10-K) -
  • U.S. Energy Information Administration -
  • Federal Energy Regulatory Commission -
  • North American Electric Reliability Corporation -
  • Southern Company Sustainability Report -
  • U.S. Environmental Protection Agency -
  • Reuters: Southern Company News -
  • S&P Global: Independent Power Producers -

Competitors to Southern Power

These competing brands operate in the same categories and provide similar products or services. Compare key attributes to understand market positioning and competitive landscape.

BrandParent CompanyCountryFoundedMarket PositionPrimary MarketGender Target
Mississippi PowerMississippi PowerSister Brand
Southern Company
USA
1910
Mass marketUnited statesAll-consumers
AvangridAvangrid
Iberdrola
USA
2015
Mass marketUnited statesUnisex
Berkshire Hathaway EnergyBerkshire Hathaway Energy
Berkshire Hathaway
USA
1926
Mass marketUnited statesAll-ages
NeoenergiaNeoenergia
Iberdrola
Brazil
1997
Mass marketBrazilAll-ages
PepcoPepco
Exelon
USA
1896
Mass marketGlobalAll-ages
ScottishPowerScottishPower
Iberdrola
United Kingdom
1990
Mass marketUnited kingdomAll Genders

Learn More About Competitors

Mississippi PowerEnergy Utilities

Mississippi Power

Owned by Southern Company

Electric utility subsidiary of Southern Company serving over 500,000 customers along the Mississippi Gulf Coast. Reported 2025 operating revenues of $1.7 billion.

electricityutilitiesmississippi
AvangridEnergy Utilities

Avangrid

Owned by Iberdrola

US-based energy company providing electricity and natural gas services to millions of customers across multiple states, owned by Spanish utility Iberdrola.

energyelectricitynatural-gas
Berkshire Hathaway EnergyEnergy Utilities

Berkshire Hathaway Energy

Owned by Berkshire Hathaway

American energy company operating regulated utilities and renewable energy businesses across multiple states, owned by Berkshire Hathaway.

energyutilitiesrenewable-energy
NeoenergiaEnergy Utilities

Neoenergia

Owned by Iberdrola

Brazilian electricity utility company engaged in generation, transmission, distribution, and retail of electricity across 18 Brazilian states and the Federal District. Wholly owned by Iberdrola since May 2026.

energyelectricityutilities
PepcoEnergy Utilities

Pepco

Owned by Exelon Corporation

Washington, D.C. and Maryland-based electric utility company serving hundreds of thousands of customers, owned by Exelon Corporation.

electricityutilitieswashington-dc
ScottishPowerEnergy Utilities

ScottishPower

Owned by Iberdrola

UK-based energy company providing electricity and gas to millions of customers across Great Britain, owned by Spanish utility Iberdrola.

energyelectricitygas

Competitive Analysis

Market Positioning: Southern Power competes with 6 brands in the same categories, ranging from mass market to luxury positioning.

Geographic Distribution: Competitors are headquartered across multiple regions, indicating global competition in this market segment.

Brand Heritage: Competitor brands range from established heritage brands to newer market entrants, with founding years spanning several decades.

Independent Alternatives to Southern Power

Looking for brands with different ownership structures? These similar brands are not owned by Southern Company, giving you alternative choices that support different corporate structures.

CMS EnergyEnergy Utilities

CMS Energy

Owned by CMS Energy

American energy company providing electricity and natural gas utility services to Michigan residents through Consumers Energy subsidiary.

energy-utilityelectricitynatural-gas
Publicly Traded

CMS Energy operates independently without a large parent corporation.

GE VernovaEnergy Utilities

GE Vernova

Owned by GE Vernova LLC

Independent publicly traded energy technology company spun off from General Electric in April 2024, providing gas turbines, wind turbines, grid solutions, and electrification technology globally.

energy-technologywind-powergas-turbines
Publicly Traded

GE Vernova operates independently without a large parent corporation.

NHPCEnergy Utilities

NHPC

Owned by NHPC Limited

NHPC Limited is India's premier state-owned hydropower and renewable energy company, a Navratna PSU under the Ministry of Power, with over 9 GW of installed capacity across hydro, solar, and wind.

renewable-energyhydrosolar
State-Owned

NHPC operates independently without a large parent corporation.

NTPC Green EnergyEnergy Utilities

NTPC Green Energy

Owned by Unknown Company

NTPC Green Energy Limited (NGEL) is the renewable energy subsidiary of NTPC Limited, India's largest power generator. Listed on the NSE since November 2024, it targets 60 GW of renewable capacity by 2032.

renewable-energysolarwind
Independent

NTPC Green Energy operates independently without a large parent corporation.

Adani PowerEnergy Utilities

Adani Power

Owned by Adani Group

India's largest private thermal power producer, operating approximately 17,550 megawatts of installed capacity across eight states, listed on NSE and BSE.

power-generationenergythermal-power
Privately Owned

Adani Power is owned by Adani Group, a private company, a different structure than Southern Power's parent.

Adani Green EnergyEnergy Utilities

Adani Green Energy

Owned by Adani Group

Adani Green Energy Limited (AGEL) is India's largest renewable energy company by installed capacity, listed on the National Stock Exchange and BSE. It develops, builds, and operates solar and wind power plants across India.

renewable-energysolarwind
Privately Owned

Adani Green Energy is owned by Adani Group, a private company, a different structure than Southern Power's parent.

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Last reviewed: July 20, 2025 · Reviewed by Who Brands Editorial Team