A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid.
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process make the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest. If the upper lake collects significant rainfall or is fed by a river then the plant may be a net energy producer in the manner of a traditional hydroelectric plant.
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. They are a common component of the infrastructure, for instance there are 55,000 substations in the United States.
Bonneville Lock and Dam is one of several run-of-the-river dam structures on the Columbia River. This dam spans the mighty Columbia River between the U.S. states of Oregon and Washington at River Mile 146.1. The dam is located 40 miles (64 km) east of Portland, Oregon and Vancouver, WA, in the Columbia River Gorge. The primary functions of Bonneville Lock and Dam are electrical power generation and river navigation. The dam was built and is managed by the United States Army Corps of Engineers. At the time of its construction in the 1930s it was the largest water impoundment project of its type in the nation, able to withstand flooding on an unprecedented scale. Nearly 70% of the capacity of the electric generating facilities on the Columbia River are owned and operated by the federal government through the U.S. Army Corps of Engineers and U.S. Department of Interior's Bureau of Reclamation. The electricity generated at these units is transported and marketed by the federal Bonneville Power Administration (BPA). Bonneville Lock and Dam is named for Army Capt. Benjamin Bonneville, an early explorer credited with charting much of the Oregon Trail. The Bonneville Dam Historic District was designated a National Historic Landmark District in 1987.
"Roll On, Columbia, Roll On" is an American folk song written in 1941 by American folk singer Woody Guthrie, who popularized the song through his own recording of it. The song glamorized the harnessing of the Columbia River in the Pacific Northwest. The 11 hydroelectric dams built on the American stretch of the Columbia helped farms and industry, but their construction also permanently altered the character of the river.
The Bonneville Power Administration (BPA) is an American federal agency operating in the Pacific Northwest. BPA was created by an act of Congress in 1937 to market electric power from the Bonneville Dam located on the Columbia River and to construct facilities necessary to transmit that power. Congress has since designated Bonneville to be the marketing agent for power from all of the federally owned hydroelectric projects in the Pacific Northwest. Bonneville is one of four regional Federal power marketing agencies within the U.S. Department of Energy (DOE).
Mica Dam is a hydroelectric embankment dam spanning the Columbia River 135 kilometres north of Revelstoke, British Columbia, Canada. It was built as one of three Canadian projects under the terms of the 1964 Columbia River Treaty and is operated by BC Hydro. Completed in 1973, the Mica powerhouse had an original generating capacity of 1,805 megawatts (MW). Mica Dam, named after the nearby settlement of Mica Creek and its associated stream, in turn named after the abundance of mica minerals in the area, is one of the largest earthfill dams in the world. The reservoir created by the dam is Kinbasket Lake. Water from the dam flows south directly into Revelstoke Lake, the reservoir for the Revelstoke Dam. Mica Dam is the tallest dam in Canada and second tallest in North America after the Chicoasén Dam in Mexico and it is the farthest upstream dam on the Columbia River. The dam's underground powerhouse was the second largest in the world at the time of its construction, and was the first 500 kV installation of sulphur hexafluoride (SF6) insulated switchgear in the world.
The Pacific DC Intertie is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). The line capacity is 3.1 gigawatts, which is enough to serve two to three million Los Angeles households and represents almost half of the Los Angeles Department of Water and Power (LADWP) electrical system's peak capacity.
Peaking power plants, also known as peaker plants, and occasionally just "peakers", are power plants that generally run only when there is a high demand, known as peak demand, for electricity. Because they supply power only occasionally, the power supplied commands a much higher price per kilowatt hour than base load power. Peak load power plants are dispatched in combination with base load power plants, which supply a dependable and consistent amount of electricity, to meet the minimum demand.
California Oregon Intertie (COI), identified as Path 66 by Western Electricity Coordinating Council (WECC), is a corridor of three roughly parallel 500 kV alternating current power lines connecting the electric grids of Oregon and California. Their combined power transmission capacity is 4800 MW.
The Celilo Converter Station, built in 1970 and owned and operated by the Bonneville Power Administration, is the northern terminus of the Pacific DC Intertie, near The Dalles, Oregon, in the United States.
A load-following power plant, regarded as producing mid-merit or mid-priced electricity, is a power plant that adjusts its power output as demand for electricity fluctuates throughout the day. Load-following plants are typically in between base load and peaking power plants in efficiency, speed of start-up and shut-down, construction cost, cost of electricity and capacity factor.
The Black Moshannon State Park Historic Districts are three separate historic districts on the National Register of Historic Places (NRHP) at Black Moshannon State Park in Rush Township, Centre County, Pennsylvania in the United States. The structures in the historic districts were constructed in the 1930s during the Great Depression by the Civilian Conservation Corps (CCC). The three districts are: the Beach and Day Use District, with 18 contributing structures, including 11 different picnic pavilions, concession building, bathhouse, museum, and four open pit latrines; the Family Cabin District with 16 contributing properties, including 13 cabins, one lodge and two latrines; and the Maintenance District with four contributing properties, including a storage building, three-bay garage, gas pump house, and ranger's residence.
Hydroelectricity is, as of 2019, the second-largest renewable source of energy in both generation and nominal capacity in the United States. In 2021, hydroelectric power produced 31.5% of the total renewable electricity, and 6.3% of the total U.S. electricity.
The Cruachan Power Station is a pumped-storage hydroelectric power station in Argyll and Bute, Scotland. The scheme can provide 440 MW of power and produced 705 GWh in 2009.
The Portland General Electric Company Station "L" Group in southeast Portland in the U.S. state of Oregon was a cluster of six industrial buildings listed on the National Register of Historic Places. Built between 1910 and 1929 by Portland General Electric (PGE), it was added to the register in 1985. In 1986, PGE gave Station L and 18.5 acres (7.5 ha) of land to the Oregon Museum of Science and Industry (OMSI). The Station L turbine is a central feature of OMSI's Turbine Hall. The complex was listed on the National Register in 1985, and was delisted in 2020.
Cooke Dam is a hydro-electric dam on the Au Sable River in Michigan. It was listed on the National Register of Historic Places in 1996 as the Cooke Hydroelectric Plant.
The Tods Corner Power Station is a pumped-storage hydroelectric power station located in the Central Highlands region of Tasmania, Australia. The power station is situated on the Great Lake and South Esk catchment and is owned and operated by Hydro Tasmania.
Renwick Generating Plant, also known as the Municipal Steam Light Plant, is a historical industrial facility located in Renwick, Iowa, United States. G.L. Long was an engineer who was contracted in 1914 to design a steam-powered electrical light plant. It first distributed energy on March 14, 1915, at 6:00 p.m. The steam engines were replaced by a 75-horsepower, two-cylinder, semi-diesel engine and generating equipment manufactured by Fairbanks-Morse in 1922. A 125-horsepower diesel engine manufactured by Worthington Pump and Machinery Corporation was added in 1936. At that time the plant started to supply power to a newly formed rural electric cooperative that was funded by the Rural Electrification Act of 1936. A Faribanks-Morse 300-horsepower, four-cylinder diesel was added in 1939, and the 75-horsepower and 40-horsepower engines were replaced in 1942 by another 300-horsepower diesel. An addition was added onto the north side of the building the same year. It housed the local fire department and city hall. The facility was listed as a historic district on the National Register of Historic Places in 1995.
