Beatrice Lang
The United States has witnessed a substantial evolution in its electric utilities landscape, with the industry encompassing a diverse array of companies involved in electricity generation, transmission, and distribution. As of 2023, there were approximately 55,000 utility businesses in the US, including around 3,000 electric utility companies, which are classified into investor-owned utilities, publicly owned utilities, and cooperative utilities. These companies play a crucial role in powering the nation, serving more than 140 million customers and generating over 2,200 terawatt-hours of electricity in 2022. The US electric utility sector is characterized by a mix of large investor-owned utilities, such as NextEra Energy and Southern Company, and a significant number of publicly owned and cooperative utilities, with a growing focus on renewable energy sources and emissions reduction.
| Characteristics | Values |
|---|---|
| Number of electric companies in the US | Around 3,000 |
| Number of utility companies | 55,226 (as of 2023) |
| Number of utility companies (increase from 2022) | 3.7% |
| Total number of customers | More than 140 million |
| Electricity generation in 2022 | More than 2,200 terawatt-hours |
| Electricity generation by investor-owned companies in 2022 | 1,470,748 GWh (34.7%) |
| Electricity generation by independent power producers in 2022 | 1,990,850 GWh (46.9%) |
| Coal's contribution to electricity generation | 15.9% |
| Natural gas's contribution to electricity generation | 42.4% |
| Nuclear energy's contribution to electricity generation | 18.2% |
| Wind's contribution to electricity generation | 10.0% |
| Hydropower's contribution to electricity generation | 5.6% |
| Solar's contribution to electricity generation | 5.6% |
| Other renewables' contribution to electricity generation | 1.5% |
| Other fuel sources' contribution to electricity generation | 0.8% |
| Largest electric utility company in the US | Florida Power & Light Co. (5.7 million customers) |
| Largest electric utility company based on revenue | Southern Company (almost $30 billion in 2022) |
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What You'll Learn
- Types of electric companies: investor-owned, publicly-owned, and cooperatives
- The largest electric companies: NextEra Energy, Southern Company, and Duke Energy
- Sources of electricity: natural gas, coal, nuclear, wind, hydropower, and solar
- History of electric companies: Pearl Street Station, the first electric distribution utility
- Future of electric companies: renewable electricity generation expected to double
Types of electric companies: investor-owned, publicly-owned, and cooperatives
Electric utility companies in the US fall into three categories: investor-owned utilities, publicly owned utilities, and cooperative utilities.
Investor-owned utilities
Investor-owned utilities (IOUs) are large, for-profit electric distributors that issue stock owned by shareholders. They are the most common type of utility in the US, serving three out of every four utility customers nationwide. IOUs are most prevalent in heavily populated areas on the East and West coasts. In 2017, 168 IOUs served an average of 654,600 electric customers each. The two largest IOUs are in California: Pacific Gas and Electric, with 5.48 million customers, and the Southern California Edison Company, with 5.07 million customers.
Publicly owned utilities
Publicly owned utilities (POUs) include federal, state, and municipal-run utilities. In addition, political subdivisions may run POUs, also called public utility districts—utilities that residents vote into existence operate independently of city or country government. The US has 1,958 POUs with an average of 12,100 electricity customers each. The largest POUs are the state-run Puerto Rico Electric Power Authority (PREPA), with 1.47 million customers, and the Los Angeles Department of Water and Power, a municipal utility with 1.43 million customers.
Cooperatives
Cooperatives, or co-ops, are not-for-profit, member-owned utilities. They are an alternative to commercial utility companies and are governed by an elected board of directors. Co-ops are located in 47 states but are most prevalent in rural areas, the Midwest, and the Southeast. There are a total of 834 co-ops that make up the cooperative distribution network in the US and another 63 generation and transmission (G&T) cooperatives. The largest electric cooperative in the country is the Texas-based Pedernales Electric Cooperative.
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The largest electric companies: NextEra Energy, Southern Company, and Duke Energy
In the United States, there are around 3,000 electric utility companies providing power to more than 140 million customers. These companies were responsible for an electricity generation of more than 2,200 terawatt-hours in 2022. NextEra Energy, Southern Company, and Duke Energy are among the largest electric companies in the US and the world in terms of market value.
NextEra Energy
NextEra Energy is a leading force in energy solutions, setting the standard for operational excellence across the industry. It is one of the nation's top wholesale generators of electric power, leveraging all forms of energy across renewables, storage, natural gas, and nuclear. NextEra Energy generates more electricity and invests more in energy infrastructure than any other company, redefining America's energy landscape. As America's largest electric utility, its subsidiary Florida Power & Light Company (FPL) serves more than 6 million accounts, providing electricity to around 12 million people in Florida. FPL focuses on keeping bills low while driving energy innovation and reliability. NextEra Energy Resources is advancing America's energy future with the largest and most diverse portfolio of power generation and infrastructure. The company is ranked No. 1 in its industry on Fortune's list of 'World's Most Admired Companies', meeting the country's increasing energy demand with all forms of energy and supporting communities.
Southern Company
Southern Company is a Georgia-based electric utility company serving customers in six states. It is the largest US electric utility based on revenue, generating almost $30 billion in the 2022 financial year. The company powers more than 1 million homes and businesses across Georgia with carbon-free, nuclear energy. Southern Company prioritizes the delivery of clean, safe, reliable, and affordable energy to its customers. Despite challenges like higher interest rates, inflation, and historically mild weather, the company delivered operational excellence, outstanding customer service, and strong financial results in 2023.
Duke Energy
Duke Energy is committed to powering the lives of its customers and the vitality of its communities. The company is making smart investments to improve reliability, prevent outages, and use more clean, renewable energy. The Duke Energy Foundation's annual giving totals more than $30 million.
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Sources of electricity: natural gas, coal, nuclear, wind, hydropower, and solar
In the United States, there are around 3,000 electric utility companies providing power to over 140 million customers. These companies are classified into three ownership types: investor-owned utilities, publicly owned utilities, and cooperatives. While investor-owned utilities make up a small share of electricity providers, they tend to serve a large proportion of customers, with almost three-quarters of utility customers getting their electricity from these companies.
Now, let's delve into the various sources of electricity that these companies rely on: natural gas, coal, nuclear, wind, hydropower, and solar.
Natural gas is a fossil fuel that is commonly used for electricity generation. It is burned to produce heat, which, in turn, powers gas turbines to generate electricity. Natural gas is a significant component of the energy mix in the United States, contributing to a large portion of the country's electricity generation.
Coal, another fossil fuel, has been a traditional source of electricity generation. Coal is converted into a gas that fuels gas turbines or burned directly in steam turbines to produce electricity. However, due to environmental concerns and the push for cleaner energy sources, coal's role in the energy landscape is evolving, with a focus on reducing its usage over time.
Nuclear energy is generated through nuclear fission, which produces heat to power steam turbines. Nuclear power plants provide a substantial amount of electricity in the United States and are known for their high energy density and low carbon emissions.
Wind energy is a renewable source that has gained prominence in recent years. Wind turbines convert the kinetic energy of wind into mechanical energy, which is then used to generate electricity. Wind energy is an important component of the United States' renewable energy strategy, contributing a significant percentage of the country's electricity generation.
Hydropower, another renewable source, utilizes the flow of water to spin turbines connected to generators, thus producing electricity. Hydropower plants have been employed for electricity generation for many years and continue to be a vital component of the energy mix in the United States.
Lastly, solar energy harnesses the power of the sun to generate electricity. Solar photovoltaic (PV) systems use solar panels to convert sunlight directly into electricity, while solar thermal power plants concentrate sunlight to heat a fluid, producing steam to power turbines. Solar energy has seen rapid growth in the United States, with both small-scale and utility-scale installations contributing to the country's electricity generation.
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History of electric companies: Pearl Street Station, the first electric distribution utility
In the late 1800s and early 1900s, most utilities were run by municipalities, and by 1923, there were more than 3,000 of them in the United States. Today, there are around 3,000 electric utility companies in the US, categorized into three main types: investor-owned utilities, publicly owned utilities, and cooperative utilities.
The history of electric companies in the US can be traced back to Pearl Street Station, the first electric distribution utility, which began operating in Lower Manhattan, New York, in 1882. Before this, Americans who wanted electricity in their homes had to rely on generators. Pearl Street Station was Thomas Edison's first commercial power plant in the country and was located at 255–257 Pearl Street in the Financial District of Manhattan. The station was built by the Edison Illuminating Company, under the direction of Francis Upton, who was hired by Thomas Edison.
Edison's plan was to combine a central power station with a system of conductors to distribute electricity to end users. He had already proven the technical feasibility of the central station concept with an installation under the Holborn Viaduct in London, which operated successfully for about two years from January 1882. Edison's system in New York aimed to conclusively prove that his direct current (dc) system worked and was commercially viable. The Pearl Street Station began generating electricity on September 4, 1882, serving an initial load of 400 lamps to 82 customers in the First District, a one-quarter square mile (0.65 square km) area. By 1884, the station was serving 508 customers with 10,164 lamps.
The Pearl Street Station consumed coal for fuel and started with six 100 kW "Jumbo" dynamos, each producing 100 kilowatts, enough to power 1200 lights. The elaborate network of wires and underground tubes (called "conduits") needed to deliver energy to customers posed a significant challenge. Despite the obstacles, the system worked well, and the New York Times reported that the light was "soft, mellow, [and] grateful to the eye" compared to arc lighting. However, the project was not an immediate financial success, and the public remained unaware that it was a money-losing business for several years. The initial cost was high, including the Manhattan real estate, the power station, wires, underground conduits, and other fixtures, amounting to about $300,000.
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Future of electric companies: renewable electricity generation expected to double
The future of electricity companies in the US is undoubtedly linked to renewable energy sources. The abundance and diversity of renewable energy resources in the US can support a range of technologies that reduce greenhouse gas emissions and water use. In 2022, three of the five largest renewable energy companies worldwide were in the US, and renewable electricity generation in the country is expected to more than double in the next decade. This is in line with President Biden's Investing in America agenda, which aims to achieve significant deployment of clean electricity and progress towards the goal of 100% carbon-pollution-free power by 2035.
The shift towards renewable energy is being driven by several factors. Firstly, the reduction in the price of renewables and energy storage has made clean energy more accessible and affordable. Additionally, the establishment of carbon regulations and growing international pressure to address climate change have encouraged energy companies to invest in renewable sources. Many utilities are now committing to achieving net-zero emissions or 100% clean electricity, and the number of utility companies investing in clean energy is increasing.
The benefits of transitioning to renewable energy are significant. Climate forecasting, for example, can help energy companies predict weather-driven changes in supply and demand, improving reliability and reducing risk. Diversification of energy sources is also important, as relying too heavily on a single renewable source can make countries vulnerable to seasonal or long-term shifts in climate. By investing in a range of renewable technologies, such as solar, wind, and hydropower, energy companies can improve their resilience and ensure a more stable supply of electricity.
The US has a large number of electric utility companies, with almost 3,000 in operation in 2017. These companies are classified into three types: investor-owned utilities, publicly owned or managed utilities, and cooperatives. Investor-owned utilities, or IOUs, are the most common type, serving 72% of US electricity customers in 2017. However, cooperatives, or co-ops, are still prevalent in rural areas, having been established to bring electricity to communities not covered by IOUs or municipal utilities. As the US has a large number of electric utility companies, the transition to renewable energy sources will involve significant changes for many companies and will require upgrades to transmission and distribution grids.
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Frequently asked questions
There are around 3,000 electric utility companies in the US, providing power to more than 140 million customers.
Electric utility companies are businesses that operate facilities to generate, transmit, or distribute electricity to the public and industrial consumers.
There are three main types of electric utility companies: investor-owned utilities, publicly owned utilities, and cooperative or member-owned utilities.
Some of the largest electric utility companies in the US include NextEra Energy, Southern Company, and Duke Energy. Florida Power & Light Co, a subsidiary of NextEra Energy, is the leading US electricity utility in terms of customers, serving more than 5.7 million users in 2022.
