Our Companies
Our family of companies proudly delivers clean, safe, reliable, and affordable energy to more than 9 million customers across the Southeast and beyond. We are trusted to deliver energy that makes progress possible—every day.
Our employees lead with a customer-focused mindset and a commitment to service excellence. That means taking action to meet the needs of our customers and communities to provide clean, safe, reliable and affordable energy solutions. We create community value through energy, social and economic progress.
Energy is all around us
Diverse Sources of Energy for a Sustainable Future
We operate electric utilities in three states and natural gas distribution companies in four. Our system draws on a diverse mix of energy sources to serve our regions efficiently and sustainably—including:
Electricity
Powers homes, businesses, and critical infrastructure
Natural Gas
Affordable and widely available
Solar Power
Harnesses energy directly from the sun
Wind Power
Converts wind into clean electricity
Nuclear
Reliable baseload energy source
Battery Storage
Stores energy for peak demand periods
Microgrids
Localized energy systems for communities
This balanced portfolio ensures we meet growing demand while supporting a cleaner, more resilient energy future.
Innovative Infrastructure & Services
Leveraging our leading distributed energy infrastructure and innovative technologies, we serve customers more effectively while our competitive national generation company supports wholesale markets. Our family also includes fiber optics and telecommunications services, enhancing connectivity across the country.
Southern Company Operations
Generation
Generation
Southern Company is one of the largest producers of electricity in the United States and the leading wholesale energy provider in the Southeast. For decades, we’ve consistently met the energy needs of our customers while delivering on our financial and service commitments.
Southern Company Generation, a key business unit, operates 77 fossil and hydro plants serving more than 4.68 million retail customers across Alabama, Georgia, and southeastern Mississippi. These assets form the backbone of our energy marketing and trading operations—offering capacity, stability, and reliability in today’s dynamic energy market.
Plants
We manage production, fleet operations, planning, engineering and fuel procurement for 103 power plants across our system—including coal, oil, gas and hydroelectric facilities. Our generation fleet is built to meet demand with energy that is reliable, affordable, and cleaner than ever.
Forecasting for Reliability and Affordability
Through advanced forecasting and strategic sourcing, we operate at a 99% reliability rate—among the highest in the nation. Our forced outage rate is one of the lowest in the industry, and our retail electric prices remain significantly below the national average.
We’re also committed to environmental responsibility. Since 1990, we’ve achieved substantial reductions in sulfur dioxide and nitrogen oxides, and we continue to lead research into cleaner, renewable energy sources. Learn more in our Clean Energy Report.
Energy Trading
Our 24/7 trading floor offers a wide range of market-based energy products and services, including:
Hourly and daily energy
Short-term energy and capacity
Flexible, customized solutions
We deliver competitive pricing, high reliability, and responsive service—backed by decades of experience and innovation.
Southern Company is shaping the future of sustainability and energy with bold innovation, strong leadership, and a deep dedication to empowering communities.
Transmission
Southern Company operations is responsible for more than 27,000 miles of transmission lines, 3,700 substations, and 300,000 acres of right of way—a robust infrastructure that supports our commitment to delivering safe, reliable, and affordable energy across the Southeast.
Our transmission system meets North American Electric Reliability Corporation (NERC) standards and is designed to support a resilient grid that meets growing demand. We plan, design, build, operate, and maintain this system to ensure capacity and stability in a rapidly evolving energy landscape.
We’ve invested billions in transmission assets and distribution substations—reinforcing our ability to deliver solutions and drive value for those who depend on us.
OATT Annual Informational and True-Up Filings and Business Practices
Southern Company operations conducts transmission business in accordance with the Southern Companies Open Access Transmission Tariff (“OATT”) approved by FERC. Southern Company operation's OATT Annual Informational and True-Up filings, as well as, its general business practices are posted at OASIS - General Information.
North American Energy Standards Board (NAESB) Wholesale Electric Quadrant Standards
NAESB rules, standards, and practices may be obtained at the NAESB public website. More...
Available Transfer Capability (ATC) Algorithm
Southern Company operations has posted its algorithm for calculation of the transmission system ATC. More...
Southern Wholesale Energy
Southern Wholesale Energy (SWE) markets surplus generating capacity from our retail operating companies—Alabama Power, Georgia Power and Mississippi Power—to wholesale customers across the Southeast.
We serve municipalities, electric membership cooperatives and investor-owned utilities with:
Reliable energy from a diverse generation mix
Competitive, flexible product offerings
Financial strength backed by our operating companies
A long-term commitment to the wholesale market
Deep internal expertise in engineering, fuel procurement, and plant operations
A strategic focus on maintaining a balanced, cleaner energy portfolio
Meeting Your Needs Today
For decades, we’ve delivered dependable wholesale power that supports comfort, productivity, and economic growth. Our team anticipates market and weather shifts and responds quickly to ensure your operations stay powered. Whether you need peak capacity, load management or full energy supply, we’re ready to deliver.
Managing Risk
We help you avoid the volatility of the spot market by securing future capacity at favorable prices. Our track record speaks for itself—we’ve met our commitments for decades, and we’ll continue to deliver the energy you need with confidence.
Competitive Pricing
By integrating our generation assets with smart market purchases, we keep rates competitive and reliability high. Our flexible contracts give you control over future power costs—without the risk of stranded costs or surprise charges.
Focused on You
The Southeast is our only market—and we know it best. Our team is dedicated to understanding your needs and tailoring solutions that work for your customers and your community.
Long-Term, Bilateral Contracts
We offer a range of contract structures to meet your needs:
Unit power sales
Partial requirements service
All requirements service
Long-term, firm and non-firm power sales
