Japan is a major consumer of energy, ranking fifth in the world by primary energy use. Fossil fuels accounted for 88% of Japan's primary energy in 2019. Japan imports most of its energy due to scarce domestic resources. As of 2022, the country imports 97% of its oil and is the largest liquefied natural gas (LNG) importer globally.
Electric energy consumption is energy consumption in the form of electrical energy. About a fifth of global energy is consumed as electricity: for residential, industrial, commercial, transportation and other purposes. The global electricity consumption in 2022 was 24,398 terawatt-hour (TWh), almost exactly three times the amount of consumption in 1981. China, the United States, and India accounted for more than half of the global share of electricity consumption. Japan and Russia followed with nearly twice the consumption of the remaining industrialized countries.
Energy in the United States is obtained from a diverse portfolio of sources, although the majority came from fossil fuels in 2023, as 38% of the nation's energy originated from petroleum, 36% from natural gas, and 9% from coal. Electricity from nuclear power supplied 9% and renewable energy supplied 9%, which includes biomass, wind, hydro, solar and geothermal.
According to data from the US Energy Information Administration, renewable energy accounted for 8.4% of total primary energy production and 21% of total utility-scale electricity generation in the United States in 2022.
Coal generated about 19.5% of the electricity at utility-scale facilities in the United States in 2022, down from 38.6% in 2014 and 51% in 2001. In 2021, coal supplied 9.5 quadrillion British thermal units (2,800 TWh) of primary energy to electric power plants, which made up 90% of coal's contribution to U.S. energy supply. Utilities buy more than 90% of the coal consumed in the United States. There were over 200 coal powered units across the United States in 2024. Coal plants have been closing since the 2010s due to cheaper and cleaner natural gas and renewables. Due to measures such as scrubbers air pollution from the plants kills far fewer people nowadays, but deaths in 2020 from PM25 have been estimated at 1600. Environmentalists say that political action is needed to close them faster, to also reduce greenhouse gas emissions by the United States and better limit climate change.
Solar power includes solar farms as well as local distributed generation, mostly on rooftops and increasingly from community solar arrays. In 2023, utility-scale solar power generated 164.5 terawatt-hours (TWh), or 3.9% of electricity in the United States. Total solar generation that year, including estimated small-scale photovoltaic generation, was 238 TWh.
Coal mining is an industry in transition in the United States. Production in 2019 was down 40% from the peak production of 1,171.8 million short tons in 2008. Employment of 43,000 coal miners is down from a peak of 883,000 in 1923. Generation of electricity is the largest user of coal, being used to produce 50% of electric power in 2005 and 27% in 2018. The U.S. is a net exporter of coal. U.S. coal exports, for which Europe is the largest customer, peaked in 2012. In 2015, the U.S. exported 7.0 percent of mined coal.
Wyoming has one of the highest wind power potentials of any state in the United States. In 2019, Wyoming had wind powered electricity generating capacity of 1,589 MW, which produced 9.85% of its electric generation, with an additional 3,753 MW under construction. However, the wind generation in that year was Wyoming's third-lowest in the 2010s. By 2020, wind capacity increased to 2738 MW and 8448 gigawatt-hours of electricity were produced from wind in 2021, more than double 2019 production. Additional wind capacity and needed transmission lines are under construction or planned, despite political headwinds from Wyoming's strong coal and oil sectors.
As of 2023, the installed capacity for wind power in Minnesota was more than 4500 megawatts (MW). Wind power generated 25 percent of Minnesota’s electricity in 2023, ranking among the top ten states in the United States for wind energy as a share of total electricity generation.
The United States has the second largest electricity sector in the world, with 4,178 Terawatt-hours of generation in 2023. In 2023 the industry earned $491b in revenue at an average price of $0.127/kWh.
Wind power in Indiana was limited to a few small water-pumping windmills on farms until 2008 with construction of Indiana's first utility-scale wind power facility, Goodland with a nameplate capacity of 130 MW. As of March of 2024, Indiana had a total of 2,743 MW of wind power capacity installed, ranking it 12th among U.S. states. Wind power was responsible for 4.8% of in-state electricity production in 2016.
The US state of Colorado has vast wind energy resources and the installed electricity capacity and generation from wind power in Colorado has been growing significantly in recent years. The growth has been sustained due to a combination of falling costs, continuing federal incentives, and the state's aggressive renewable portfolio standard that requires 30% of the state's electricity to come from renewable sources by 2020.
Energy in Libya primarily revolves around the production, consumption, import, and export of energy, with a significant focus on the petroleum industry, which serves as the backbone of the Libyan economy. As of 2021, Libya is recognized as the seventh-largest crude oil producer in OPEC and ranks third in total petroleum liquids production in Africa. The country holds 3% of the world's proven oil reserves and 39% of Africa's, marking it as a key player in the global energy sector. Despite its abundant resources, the energy industry in Libya has faced significant challenges due to political instability following the civil war that began in 2011. These challenges have led to frequent disruptions in oil production and exports, directly impacting the national economy and its contributions to the global oil market. The sector's future is closely tied to the resolution of political conflicts and the effective management of its vast hydrocarbon resources.
Energy in Algeria encompasses the production, consumption, and import of energy. As of 2009, the primary energy use in Algeria was 462 TWh, with a per capita consumption of 13 TWh. Algeria is a significant producer and exporter of oil and gas and has been a member of the Organization of the Petroleum Exporting Countries (OPEC) since 1969. It also participates in the OPEC+ agreement, collaborating with non-OPEC oil-producing nations. Historically, the country has relied heavily on fossil fuels, which are heavily subsidized and constitute the majority of its energy consumption. In response to global energy trends, Algeria updated its Renewable Energy and Energy Efficiency Development Plan in 2015, aiming for significant advancements by 2030. This plan promotes the deployment of large-scale renewable technologies, such as solar photovoltaic systems and onshore wind installations, supported by various incentive measures.
Solar power in Texas, a portion of total energy in Texas, includes utility-scale solar power plants as well as local distributed generation, mostly from rooftop photovoltaics. The western portion of the state especially has abundant open land areas, with some of the greatest solar and wind potential in the country. Development activities there are also encouraged by relatively simple permitting and significant available transmission capacity.
Denmark is a leading country in renewable energy production and usage. Renewable energy sources collectively produced 81% of Denmark's electricity generation in 2022, and are expected to provide 100% of national electric power production from 2030. Including energy use in the heating/cooling and transport sectors, Denmark is expected to reach 100% renewable energy in 2050, up from the 34% recorded in 2021.
The energy sector in Tunisia includes all production, processing and, transit of energy consumption in this country. The production involves the upstream sector that includes general oil and gas, the downstream sector that includes the only refinery in Tunisia and most of the production of natural gas, and varied electrical/renewable energies. Renewable energy has been a strong point of focus for Tunisia as they look to optimize their green energy sources and advance their developing country. The Tunisian government has partnered with Russia and France in hopes of establishing nuclear energy as a viable alternative to fossil fuels and taking up a nontrivial chunk of the energy production in Tunisia. This is expected to be accomplished in the 2020s.
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