Regan Brown
Fossil fuels have dominated the US energy mix for over a century, and while renewable energy sources are growing, fossil fuels still dominate. In 2023, fossil fuels generated 2,509 TWh of electricity, accounting for 60% of all electricity generation in the US. This is a slight decrease from 2018, when fossil fuels accounted for 80% of the nation's energy demand. The US is the world's second-largest producer and consumer of electricity, and it generates 15% of the world's electricity supply. Fossil fuels such as coal, oil, and natural gas have long been the primary energy sources, but renewable energy sources like solar and wind power are becoming more popular and are the fastest-growing renewable sources.
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What You'll Learn
Fossil fuels generated 60% of US electricity in 2023
In 2023, the US generated about 4.18 trillion kilowatthours (kWh) of electricity, 60% of which was from fossil fuels. Natural gas was the largest source of electricity generation, making up 38% of the total, while coal contributed 23%. Petroleum, on the other hand, provided less than 1% of the electric power sector's energy consumption.
While fossil fuels continue to dominate, there is a growing trend towards renewable energy sources. Solar and wind power have experienced rapid growth over the past decade, and renewables surpassed coal in energy generation in 2023. However, renewable sources still contribute less than 3% of total energy used in the US.
The US is the world's second-largest producer and consumer of electricity, generating 15% of the global supply. The country's energy consumption reached 101.2 quadrillion British thermal units (Btu) in 2018, the highest level since data collection began in 1949. Despite the dominance of fossil fuels, there is a growing public concern about climate change, and most Americans (77%) prioritize the development of alternative energy sources over the production of more fossil fuels.
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Petroleum, natural gas, and coal are the main fossil fuels
Fossil fuels have dominated the US energy mix for over a century, with petroleum, natural gas, and coal being the main fossil fuels. In 2023, fossil fuels accounted for 60% of US electricity generation, with coal, natural gas, and petroleum making up the majority of this.
Petroleum, also known as crude oil, is a fossil fuel formed from the carbon-rich remains of ancient animals and plants. It has long been a significant energy source for the US, with its consumption peaking in the 1970s. In 1978, total petroleum consumption was about 49% of total US energy consumption. While its share has decreased over time, petroleum still accounted for about 38% of total US energy consumption in 2023, with the transportation sector being the largest consumer.
Natural gas has become an increasingly important fossil fuel in the US energy mix. It surpassed coal for production in 2011 and for generation in 2016, becoming the top fossil fuel. In 2021, dry natural gas was the largest source of energy in the US, accounting for 36% of production. It is also the largest source of electricity, making up 38% of generation.
Coal, another major fossil fuel, has seen a decline in usage in recent years due to the decreasing costs of natural gas and renewable energy. In 2020, coal supplied 19% of US energy consumption, down from 23% in 2011. Despite this decrease, coal continues to play a significant role in electricity generation, with the US Energy Information Administration reporting that it accounted for 23% of net electricity generation in 2021.
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Natural gas is the largest source of electricity
Fossil fuels have been the primary energy source in the US for over a century, but the energy mix has evolved over time. In 2023, about 60% of electricity generation in the US was based on fossil fuels, including coal, natural gas, petroleum, and other gases. Natural gas is the single largest source of electricity, accounting for 38% of generation.
Natural gas has been the largest source of US electricity since 2016, when it surpassed coal. Natural gas is also the largest source of energy in the US as a whole, accounting for 36% of production in 2021. The US has been the world's largest producer of natural gas since 2011. Gas-fired power plants generate almost a quarter of the world's electricity, and they can respond quickly to seasonal and short-term demand fluctuations.
Natural gas is a fossil fuel that is often found alongside other fossil fuels like coal and oil (petroleum) in underground geological formations. It is used in gas-fired power plants to generate electricity and can be easily stored and delivered through pipelines. When burned for electricity generation, natural gas emits fewer toxic air pollutants, less carbon dioxide, and almost no particulate matter compared to other fossil fuels. However, gas venting and unintended fugitive emissions throughout the supply chain can result in a similar overall carbon footprint.
Natural gas plays a crucial role in the US industry, with the chemical industry, petroleum and coal processing, mining, and paper industries being the largest energy users. About half of the natural gas used in these industries is for process heating, with most of the rest used for boilers. Natural gas is also a popular domestic fuel in the US, with over one-third of households using it for cooking.
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Fossil fuels have dominated the US energy mix for over 100 years
Fossil fuels have dominated the US energy mix for over a century, but this mix has evolved over time. Petroleum consumption, for example, peaked in the 1970s, accounting for about 49% of total US energy consumption in 1978. In 2023, petroleum's share of total US energy consumption had decreased to about 38%.
In 2023, fossil fuels—petroleum, natural gas, and coal—accounted for about 84% of total US primary energy production. Fossil fuels generated 2,509 TWh of electricity, making up 60% of all electricity generation in the US that year. Natural gas was the largest source of energy in the US in 2021, accounting for 36% of production. It is also the largest source of electricity, contributing 38% of generation. Natural gas surpassed coal for production in 2011 and for generation in 2016.
The US is the world's second-largest producer and consumer of electricity. It generates 15% of the world's electricity supply, about half as much as China. Fossil fuels have long been the primary source of US energy, with natural gas providing 38%, coal 23%, and petroleum less than 1%. However, the proportion of natural gas as a fossil fuel has been increasing since the 1990s, surpassing coal in 2008 to become the top fossil fuel in 2016.
While renewable energy sources like solar and wind power are growing rapidly, they still contribute less than 4% of US energy as of 2018. Fossil fuel subsidies, which totalled a record $7 trillion globally in 2022, present a significant barrier to the transition to clean energy. Nevertheless, the US has joined 132 other countries in pledging to triple worldwide installed renewable energy generation capacity to 11,000 GW by 2030.
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Fossil fuel use has remained near 80% for 30 years
Fossil fuels have been the primary source of energy in the United States for over a century. While the energy mix has changed over time, fossil fuels have consistently accounted for a significant proportion of the country's energy production and consumption. In 2023, fossil fuels—including petroleum, natural gas, and coal—made up about 84% of total US primary energy production. This dominance of fossil fuels in the energy sector has been a long-standing trend, with petroleum consumption peaking at around 49% of total US energy consumption in the 1970s. Despite a decrease in 2020 due to the COVID-19 pandemic, petroleum consumption rebounded as economic activities resumed.
While renewable energy sources have been gaining traction, fossil fuels have remained the predominant energy source in the US. In 2023, about 60% of electricity generation in the US was attributed to fossil fuels, while nuclear energy contributed about 19% and renewable sources accounted for approximately 21%. This trend is not limited to recent years; fossil fuel usage has remained near 80% for the past 30 years. The high reliance on fossil fuels has resulted in significant carbon emissions, with the US producing 3% less GHG emissions in 2022 compared to 1990, and 74% of these emissions stemming from burning fossil fuels.
Natural gas has played an increasingly prominent role in the US energy landscape. It surpassed coal in production in 2011 and generation in 2016, becoming the largest source of energy and electricity in the US by 2021. The shift from coal to natural gas has led to a reduction in carbon emissions, as combined emissions from these sources have declined by 25% since their peak in 2008. However, petroleum, the largest contributor to carbon pollution, has shown a more modest decrease of 17% during the same period.
The US has committed to reducing its carbon emissions and transitioning towards cleaner energy sources. Despite the growth in renewable energy sources, fossil fuels continue to receive substantial subsidies. In 2022, global fossil fuel subsidies reached a record $7 trillion, with the US contributing $760 billion. The US has joined 132 countries in pledging to triple the world's installed renewable energy generation capacity by 2030. Additionally, initiatives like the SunShot Initiative aim to reduce the cost of solar energy, with a target of meeting 33% of US electricity demand by 2050.
While the US has made strides in renewable energy development and pledged to increase its capacity, the current trajectory indicates that fossil fuels will remain a significant part of the energy mix in the coming years. The US Department of Energy estimates that by 2050, 66% of US energy will still come from fossil fuels. This projection highlights the challenges and opportunities for the US in balancing energy needs with environmental sustainability goals.
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Frequently asked questions
As of 2023, fossil fuels generated 60% of electricity in the US.
Fossil fuels include petroleum, natural gas, and coal.
In 2023, fossil fuels accounted for 84% of total US primary energy production.
