
California, a state with some of the most ambitious renewable energy goals in the United States, still relies heavily on fossil fuels. Despite its green image, the state's economy and daily life are heavily dependent on oil and gas. Fossil fuels account for about 8% of California's $3 trillion economy, with oil being used to power everything from transportation to industrial equipment. California's crude oil output accounts for about 3% of total US production, with the state possessing more than a dozen of the country's largest oil fields. While the state has made strides towards clean energy, with approximately 60% of its electrical power coming from clean sources, the transition away from fossil fuels remains a work in progress.
| Characteristics | Values |
|---|---|
| Fossil fuel usage in California | 40% of total energy consumption |
| Clean energy usage in California | 60% of total energy consumption |
| California's fossil fuel usage compared to the US | California: 40% vs US: 42% |
| California's clean energy usage compared to the US | California: 60% vs US: 42% |
| Fossil fuel usage in California's energy mix | 48.7% |
| California's contribution to jet fuel consumption in the US | 20% |
| California's contribution to total US oil production | 3% |
| California's petroleum refining capacity in the US | 11% |
| California's electricity generation from natural gas plants | 33% |
| California's electricity generation from non-hydroelectric renewable energy sources | 34.5% |
| California's electricity generation from nuclear power | 10.6% |
| California's electricity generation from large hydro | 13.9% |
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What You'll Learn
- California's fossil fuel use in context: 84% of energy from fossil fuels
- Fossil fuels' role in California's economy: 8% of $3 trillion economy
- Oil and gas' importance to daily life: used for transport, construction, and manufacturing (e.g. cement, steel, plastics)
- California's energy transition: the shift away from fossil fuels and towards renewables
- Fossil fuel imports: California's energy model relies on foreign oil and gasoline

California's fossil fuel use in context: 84% of energy from fossil fuels
Despite California's green image and leadership in environmental regulation, the state still relies heavily on fossil fuels. In fact, it has been reported that 84% of California's energy comes from fossil fuels. This is despite the state's significant investments in climate change initiatives and its ambitious renewable energy goals.
California's economy and daily life are heavily dependent on oil and gas. Fossil fuels account for about 8% of the state's $3 trillion economy. Oil is used to power vehicles, construction equipment, and agricultural machinery. It is also a key input in various industrial processes, including the production of cement, steel, plastics, and lithium-ion batteries. Additionally, California is the third-largest refiner of petroleum in the US, processing both domestic and imported crude oil.
Transportation is a major use of energy in California due to long commuting distances and a high number of motor vehicles. In 2017, transportation accounted for 40% of the state's total energy use and was the largest source of greenhouse gas emissions. California also accounts for about 20% of total jet fuel consumption in the United States. The state's crude oil and natural gas deposits are located in six geological basins in the Central Valley and along the coast, with substantial offshore oil and gas production.
While California has made strides in renewable energy, natural gas still plays a significant role in its energy mix. In 2020, renewables, large hydro, and nuclear power made up 59% of California's energy, while natural gas accounted for the remaining 41%. In 2021, California's total system electric generation was 277,764 gigawatt-hours (GWh), with renewable energy accounting for 33.6% of the total system mix. The state has some of the most aggressive renewable energy goals in the nation, aiming for 33% renewable energy by 2020 and 50% by 2030. California leads the nation in electricity generation from non-hydroelectric renewable sources, including geothermal, wind, and solar power.
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Fossil fuels' role in California's economy: 8% of $3 trillion economy
California has some of the most ambitious renewable energy goals in the United States. The state has set targets to obtain at least 33% of its electricity from renewable resources by 2020 and 50% by 2030. Despite these green ambitions, California's economy—worth $3 trillion—still runs on fossil fuels, with fossil fuels accounting for roughly 8% of the state's economy.
California's energy consumption is dominated by the transportation sector, due to the high number of motor vehicles and long commutes. In 2017, transportation accounted for 40% of total energy use, and in 2015, it was estimated to be the largest source of greenhouse gas emissions. California also accounts for about 20% of total jet fuel consumption in the United States. The state has a significant aviation industry, with military bases in California depending heavily on in-state refineries for specialised aviation fuel.
California is a leading producer of oil in the United States, with more than a dozen of the country's largest oil fields. As of 2012, California ranked third in the nation in petroleum refining capacity, accounting for about 11% of total US capacity. The state's refineries are configured to produce cleaner fuels, such as reformulated motor gasoline and low-sulfur diesel, to meet strict environmental regulations. However, California also imports oil from Alaska and foreign suppliers.
While California has made significant strides towards its renewable energy goals, fossil fuels still play a crucial role in the state's economy and energy mix. As of 2020, California's electrical power was about 60% clean energy, with the remaining 40% coming from fossil fuels. The state's natural gas plants supplied a third of the state's total demand for electricity in 2019, and researchers estimate that California will still need between 17 and 35 GW of natural gas-fuelled capacity in 2050 to ensure a reliable supply of electricity.
California's plan to decarbonize its economy by 2045 will require up to 70% more electricity consumption to transition away from fossil fuels in sectors such as transportation and residential heating. The state's transition to cleaner energy sources is inevitable, but it must be carefully managed to avoid unacceptable logistical and strategic risks, especially in critical sectors such as national security and energy infrastructure.
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Oil and gas' importance to daily life: used for transport, construction, and manufacturing (e.g. cement, steel, plastics)
California's economy and daily life are heavily reliant on oil and gas. Fossil fuels account for about 8% of California's $3 trillion economy. Oil and gas are used in various sectors, including transport, construction, and manufacturing.
Transport
The transportation sector accounts for the largest share of US petroleum consumption. Gasoline is the most-consumed petroleum product in the United States, with finished motor gasoline consumption averaging about 8.78 million barrels per day in 2022, or about 43% of total US petroleum consumption. Diesel fuel, another petroleum product, is used in diesel engines found in heavy construction equipment, trucks, buses, tractors, boats, trains, and some automobiles. Additionally, jet fuel is the fourth-most-used petroleum product in the US.
Construction and Manufacturing
Oil and gas are essential in the construction industry, used in materials such as paint, caulking, roofing shingles, asphalt, and pipes. Petroleum-derived products also enhance worker safety by providing hard hats, safety goggles, and other personal protective equipment (PPE).
Furthermore, oil and gas are crucial in the manufacturing of various products. Plastic is one of the most significant uses of crude oil, being used in almost all types of packaging and products. In the industrial sector, petroleum is used as a raw material to make products such as plastics, polyurethane, solvents, and hundreds of other intermediate and end-user goods. Additionally, petroleum is used in the manufacturing of certain food products, such as gum, which uses petroleum-based polymers to achieve its soft and chewy texture.
California's energy transition away from fossil fuels is inevitable, but it is important to recognize the current dependence on oil and gas in various sectors, including transport, construction, and manufacturing.
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California's energy transition: the shift away from fossil fuels and towards renewables
California is a leader in environmental regulation and has ambitious clean energy goals. However, the state's economy and daily life are heavily reliant on oil and gas. Fossil fuels account for roughly 8% of California's $3 trillion economy, powering transportation, industry, and residential sectors. The state also has a significant petroleum refining capacity, ranking third in the United States.
Recognizing the negative impacts of fossil fuels on disadvantaged communities and the environment, California is undergoing a rapid transition towards renewable energy sources. The state has set aggressive renewable energy goals, aiming for 33% of its electricity to come from renewable resources by 2020 and 50% by 2030. California leads the nation in electricity generation from non-hydroelectric renewable sources, including geothermal power, wind power, and solar power. The state's abundant natural resources, such as sunshine and geothermal conditions, support the deployment of solar energy and geothermal power generation.
California's energy transition involves maximizing efficiency and electrifying energy use across sectors. The state is modernizing its electric grid to accommodate distributed energy resources (DERs) like rooftop solar panels, backup generators, and batteries. However, this transition comes with challenges, including increasing electricity demand, grid reliability, and cost implications for consumers. California's electricity demand could increase by up to 70% by 2045, requiring upgrades and expansion of the state's electricity grid.
To address the challenges of the energy transition, California is exploring various strategies. Grid-scale battery storage deployment has provided flexible resources, but more options are needed for longer-duration events like heatwaves. Policymakers are working to balance the transition to renewable energy while maintaining reliability and affordability for consumers. The state is also addressing the impact of energy imports and the retirement of flexible dispatchable resources. California's unique environment, with challenges like wildfires and extreme weather, further complicates the energy transition.
In conclusion, California is undergoing a significant shift away from fossil fuels towards renewable energy sources. While the state faces complexities and challenges in this transition, strong and rapid action guided by careful planning can help minimize the impact of climate change and secure a sustainable, equitable, and prosperous future for all Californians.
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Fossil fuel imports: California's energy model relies on foreign oil and gasoline
California has some of the most ambitious renewable energy goals in the United States. The state has set targets to obtain at least 33% of its electricity from renewable sources by 2020 and 50% by 2030, excluding large hydropower. In 2020, California's electrical power was about 60% clean energy, with renewables making up 34.5%, large hydropower 13.9%, and nuclear power 10.6%. However, despite these green initiatives, California's energy model still relies heavily on fossil fuels.
California's energy consumption is dominated by the transportation sector, which accounted for 40% of total energy use in 2017. The state is responsible for about 20% of total jet fuel consumption in the US. California also has a significant number of motor vehicles, and long commutes are common, contributing to high gasoline consumption.
While California has some crude oil and natural gas deposits, it also imports crude oil from Alaska and foreign suppliers. The state has a substantial refinery capacity, ranking third in the US as of 2012, and its refineries are configured to produce cleaner fuels. However, as refineries shut down, California's energy model has become increasingly dependent on foreign oil and gasoline imports. This reliance on imports has raised concerns about logistical and strategic risks, especially for US military readiness in western states.
California's transition to cleaner energy sources is inevitable, but it must be done carefully. Despite the state's efforts to reduce fossil fuel usage, the reality is that the economy and daily life still depend on oil and gas. Fossil fuels account for about 8% of California's $3 trillion economy, powering essential industries and infrastructure. As a result, California's energy policies must balance environmental goals with the current needs of its citizens and industries.
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Frequently asked questions
Fossil fuels account for around 40% to 84% of California's energy.
California uses petroleum, crude oil, natural gas, and coal.
California has some of the most aggressive renewable energy goals in the United States. The state plans to obtain 50% of its electricity from renewable resources by 2030 and aims to decarbonize its economy by 2045.
California faces several challenges in transitioning away from fossil fuels, including the need for significant increases in electricity consumption, the high cost of renewable energy sources, and the reliance of its economy and key industries on fossil fuels.











































