Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is a type of fossil fuel, formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian) and Permian times.
A fossil fuel power station is a thermal power station which burns a fossil fuel, such as coal or natural gas, to produce electricity. Fossil fuel power stations have machinery to convert the heat energy of combustion into mechanical energy, which then operates an electrical generator. The prime mover may be a steam turbine, a gas turbine or, in small plants, a reciprocating gas engine. All plants use the energy extracted from the expansion of a hot gas, either steam or combustion gases. Although different energy conversion methods exist, all thermal power station conversion methods have their efficiency limited by the Carnot efficiency and therefore produce waste heat.
Navajo Generating Station was a 2.25-gigawatt, coal-fired power plant located on the Navajo Nation, near Page, Arizona, United States. This plant provided electrical power to customers in Arizona, Nevada, and California. It also provided the power for pumping Colorado River water for the Central Arizona Project, supplying about 1.5 million acre feet (1.85 km3) of water annually to central and southern Arizona. As of 2017 permission to operate as a conventional coal-fired plant was anticipated until 2017–2019, and to December 22, 2044, if extended. However, in 2017, the utility operators of the power station voted to close the facility when the lease expires in 2019. In March 2019, the Navajo Nation ended efforts to buy the plant and continue running it after the lease expires.
PacifiCorp is an electric power company in the western United States.
Orot Rabin is a power station located on the Mediterranean coast in Hadera, Israel which is owned and operated by the Israel Electric Corporation (IEC). As of 2022 it is Israel’s largest power station and contains six thermal generation units capable of producing a total of 2.59GW of electricity using coal as the primary fuel. In addition, under construction at the site are two single-shaft natural gas-powered combined-cycle units capable of generating 630 MW each. The older, unmodernised four of its total six coal-fuelled units will be closed by mid-2022 in order to eliminate this major source of air pollution in the country.
GreenFuel Technologies Corporation (GFT) was a startup that developed a process of growing algae using emissions from fossil fuels to produce biofuel from algae.
Thunder Bay Generating Station is a defunct biomass-fired thermal power station owned by Ontario Power Generation ("OPG"). It is located on Mission Island in Thunder Bay, on the shore of Lake Superior.
A coal-fired power station or coal power plant is a thermal power station which burns coal to generate electricity. Worldwide there are over 2,400 coal-fired power stations, totaling over 2,000 gigawatts capacity. They generate about a third of the world's electricity, but cause many illnesses and the most early deaths, mainly from air pollution.
The Wilberg Mine is a coal mine in Emery County, Utah, approximately 12 miles (19 km) northwest of Orangeville, just north of State Route 29, at the northern terminus of State Route 57. The mine is operated by the Energy West Mining Company and owned by PacifiCorp Energy.
Pinnacle West Capital Corporation is an American utility holding company that owns Arizona Public Service (APS) and Bright Canyon Energy. It is publicly traded on the New York Stock exchange and a component of the S&P 500 stock market index. APS is the largest utility company in Arizona and is regulated by the Arizona Corporation Commission (ACC).
China is the largest producer and consumer of coal and the largest user of coal-generated electricity in the world. The share of coal in the Chinese energy mix declined to 55% in 2021 according to the US Energy Information Agency.
The health and environmental impact of the coal industry includes issues such as land use, waste management, water and air pollution, caused by the coal mining, processing and the use of its products. In addition to atmospheric pollution, coal burning produces hundreds of millions of tons of solid waste products annually, including fly ash, bottom ash, and flue-gas desulfurization sludge, that contain mercury, uranium, thorium, arsenic, and other heavy metals. Coal is the largest contributor to the human-made increase of carbon dioxide in Earth's atmosphere.
The Solana Generating Station is a solar power plant near Gila Bend, Arizona, about 70 miles (110 km) southwest of Phoenix. It was completed in 2013. When commissioned, it was the largest parabolic trough plant in the world, and the first U.S. solar plant with molten salt thermal energy storage. Built by the Spanish company Abengoa Solar, the project can produce up to 280 megawatts (MW) gross, supplied by two 140 MW gross (125 MW net) steam turbine generators: enough electricity to meet the needs of approximately 70,000 homes and obviate the emission of roughly 475,000 tons of CO2 every year. Its name is the Spanish term for "sunny spot".
Centralia Big Hanaford power plant is a coal-fired power plant supplemented with natural-gas-fired units. It is located east of Centralia, Washington, United States in Lewis County. It is the only commercial coal-fired power plant in the State of Washington.
The Four Corners Generating Station is a 1,540 megawatt coal-fired power plant located near Fruitland, New Mexico, on property located on the Navajo Nation that is leased from the Navajo Nation government.
Big Brown Power Plant was a 1.15-gigawatt coal power plant located northeast of Fairfield near Fairfield Lake State Park in Freestone County, Texas. It was operated by Vistra Corp's subsidiary, Luminant. The plant operated from 1971 to 2018.
The Afşin-Elbistan power stations are coal-fired power stations in Afşin in Kahramanmaraş Province in Turkey. The area is a sulfur dioxide air pollution hotspot: Air pollution can be trapped by the surrounding mountains, and Greenpeace say that measurements they took nearby in late 2020 show illegal levels of particulates and nitrogen oxides. The Environment Ministry has not released the flue gas measurements.
