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86-726: The company acquired Questar Corporation in the Western United States , including parts of Utah and Wyoming, in September 2016. In January 2019, Dominion Energy completed its acquisition of SCANA Corporation . The company's asset portfolio includes 27,000 megawatts of power generation, 6,000 miles (9,700 km) of electric transmission lines, 54,000 miles (87,000 km) of distribution lines, 14,000 miles (23,000 km) of natural gas transmission, gathering and storage pipeline, and 1.2 trillion cubic feet (34 km) equivalent of natural gas and oil reserves. Dominion also operates

172-620: A fly ash dump near the Clinch River (a source of drinking water) are also of concern. The plant would also continue to support mountaintop removal coal mining. Supporters, including Governor Tim Kaine , stated that as one of the largest importers of electricity, Virginia could become less dependent on importing electricity from other states with a new power plant. The plant brought 1000 workers to build, and will employ 130 full-time, as well as pay 4 to 7 million dollars of tax revenue yearly to economically depressed Wise County. In September 2008,

258-447: A magnetic field and a conductor creates an electric current . The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal , oil , and natural gas to generate electricity. Low-carbon power sources include nuclear power , and use of renewables such as solar , wind , geothermal , and hydroelectric . In early 1871 Belgian inventor Zénobe Gramme invented

344-579: A transformer to step up voltage for long-distance transmission and then stepped it back down for indoor lighting, a more efficient and less expensive system which is similar to modern systems. The war of the currents eventually resolved in favor of AC distribution and utilization, although some DC systems persisted to the end of the 20th century. DC systems with a service radius of a mile (kilometer) or so were necessarily smaller, less efficient of fuel consumption, and more labor-intensive to operate than much larger central AC generating stations. AC systems used

430-721: A wooded portion of the Washington & Old Dominion Railroad Trail between Leesburg and Clarks Gap in Loudoun County , which Dominion again claimed was necessary for power reliability. Less than three weeks later, on March 4 and March 5, 2008, the Senate and the House of Delegates of the Virginia General Assembly unanimously passed emergency legislation that ordered the SCC to approve

516-516: A 605 MWe coal fired power station in Wise County, Virginia in June 2008. As of December 2009, the construction had reached the halfway point, with the plant scheduled to be fully operational in mid-2012. Dominion calls the plant the " Virginia City Hybrid Energy Center ," which has been criticized by environmentalists as a way to make the plant sound environmentally friendly. The plant does however have

602-420: A byproduct of the useful electrical energy produced. The amount of waste heat energy equals or exceeds the amount of energy converted into useful electricity . Gas-fired power plants can achieve as much as 65% conversion efficiency, while coal and oil plants achieve around 30–49%. The waste heat produces a temperature rise in the atmosphere, which is small compared to that produced by greenhouse-gas emissions from

688-525: A deal was announced, Enbridge completed the purchase of Questar Gas for $ 4.3 billion. Power station 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 . Many power stations contain one or more generators , rotating machine that converts mechanical power into three-phase electric power . The relative motion between

774-828: A final discharge permit called a National Pollution Discharge Elimination System (NPDES) for the Brayton Point Power Station requiring significant reductions in thermal discharges to, and water intake from, Mount Hope Bay . In 2002, Dominion was responsible for 1,110,703 pounds of gastrointestinal or liver toxicant emissions, 1,440,000 pounds of musculoskeletal toxicant emissions, and 1,489,763 pounds of suspected respiratory toxicant emissions, and 1,478,383 pounds of suspected skin or sense organ toxicant emissions among other emissions that are suspected to be hazardous. Questar Corporation (gas company) 40°46′N 111°53′W  /  40.767°N 111.883°W  / 40.767; -111.883 Questar Corporation

860-427: A generator powerful enough to produce power on a commercial scale for industry. In 1878, a hydroelectric power station was designed and built by William, Lord Armstrong at Cragside , England . It used water from lakes on his estate to power Siemens dynamos . The electricity supplied power to lights, heating, produced hot water, ran an elevator as well as labor-saving devices and farm buildings. In January 1882

946-425: A hydroelectric power station water flows through turbines using hydropower to generate hydroelectricity . Power is captured from the gravitational force of water falling through penstocks to water turbines connected to generators . The amount of power available is a combination of height and water flow. A wide range of Dams may be built to raise the water level, and create a lake for storing water . Hydropower

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1032-403: A lower reservoir to an upper reservoir. Because the pumping takes place "off peak", electricity is less valuable than at peak times. This less valuable "spare" electricity comes from uncontrolled wind power and base load power plants such as coal, nuclear and geothermal, which still produce power at night even though demand is very low. During daytime peak demand, when electricity prices are high,

1118-406: A material that enhances the mixing of the upflowing air and the down-flowing water. In areas with restricted water use, a dry cooling tower or directly air-cooled radiators may be necessary, since the cost or environmental consequences of obtaining make-up water for evaporative cooling would be prohibitive. These coolers have lower efficiency and higher energy consumption to drive fans, compared to

1204-722: A more unified energy company. In 2007, as part of another effort to refocus on core electric and gas operations, Dominion sold most of its Houston -based natural gas and oil exploration and production business for pre-tax proceeds of nearly $ 14 billion. Its onshore US oil and gas reserves were sold in separate deals to Loews Corporation and to XTO Energy , while its Gulf of Mexico reserves were sold to Eni , and its Canadian reserves were sold to two Canadian trusts. Dominion still retains some production areas in Appalachia , however. In February 2016, Dominion Resources announced that it would be acquiring Questar Corporation . The acquisition

1290-569: A pipe containing a heat transfer fluid, such as oil. The heated oil is then used to boil water into steam, which turns a turbine that drives an electrical generator. The central tower type of solar thermal power plant uses hundreds or thousands of mirrors, depending on size, to direct sunlight onto a receiver on top of a tower. The heat is used to produce steam to turn turbines that drive electrical generators. Wind turbines can be used to generate electricity in areas with strong, steady winds, sometimes offshore . Many different designs have been used in

1376-592: A power station is nearly the maximum electrical power that the power station can produce. Some power plants are run at almost exactly their rated capacity all the time, as a non-load-following base load power plant , except at times of scheduled or unscheduled maintenance. However, many power plants usually produce much less power than their rated capacity. In some cases a power plant produces much less power than its rated capacity because it uses an intermittent energy source . Operators try to pull maximum available power from such power plants, because their marginal cost

1462-626: A regulated monopoly . In 1940, VEPCO doubled its service territory by merging with the Virginia Public Service Company. The transit operations were sold in 1944. In 1980, VEPCO began branding itself as "Virginia Power," while branding its North Carolina operations as "North Carolina Power." Three years later, VEPCO reorganized as a holding company, Dominion Resources. By 1985, Dominion split its distribution operations among two operating companies: Virginia Power (operating in Virginia and

1548-421: A steam turbine. Bioenergy can also be processed through a range of temperatures and pressures in gasification , pyrolysis or torrefaction reactions. Depending on the desired end product, these reactions create more energy-dense products ( syngas , wood pellets , biocoal ) that can then be fed into an accompanying engine to produce electricity at a much lower emission rate when compared with open burning. It

1634-632: A steam turbine. The combination of a "top" cycle and a "bottom" cycle produces higher overall efficiency than either cycle can attain alone. In 2018, Inter RAO UES and State Grid Archived 21 December 2021 at the Wayback Machine planned to build an 8-GW thermal power plant, which's the largest coal-fired power plant construction project in Russia . A prime mover is a machine that converts energy of various forms into energy of motion. Power plants that can be dispatched (scheduled) to provide energy to

1720-495: A system include: Non-dispatchable plants include such sources as wind and solar energy; while their long-term contribution to system energy supply is predictable, on a short-term (daily or hourly) base their energy must be used as available since generation cannot be deferred. Contractual arrangements ("take or pay") with independent power producers or system interconnections to other networks may be effectively non-dispatchable. All thermal power plants produce waste heat energy as

1806-649: A total enterprise value worth $ 14 billion. Dominion has four operating segments: Dominion generates electricity for both regulated sale in its Virginia and North Carolina markets, and also for wholesale in other markets in the Northeast and Midwest United States. Electricity generation is the largest unit of Dominion. Dominion is a regulated electric utility that transmits, and distributes electricity from its power plants in Virginia , North Carolina, Connecticut, and West Virginia to customers. Dominion Exploration and Production

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1892-669: A turbine is spun creating energy. This method is being specifically studied by the Norwegian utility Statkraft, which has calculated that up to 25 TWh/yr would be available from this process in Norway. Statkraft has built the world's first prototype osmotic power plant on the Oslo fjord which was opened on 24 November 2009. In January 2014, however, Statkraft announced not to continue this pilot. Biomass energy can be produced from combustion of waste green material to heat water into steam and drive

1978-445: A typical wet, evaporative cooling tower. Power plants can use an air-cooled condenser, traditionally in areas with a limited or expensive water supply. Air-cooled condensers serve the same purpose as a cooling tower (heat dissipation) without using water. They consume additional auxiliary power and thus may have a higher carbon footprint compared to a traditional cooling tower. Electric companies often prefer to use cooling water from

2064-487: A wide range of frequencies depending on the type of load; lighting load using higher frequencies, and traction systems and heavy motor load systems preferring lower frequencies. The economics of central station generation improved greatly when unified light and power systems, operating at a common frequency, were developed. The same generating plant that fed large industrial loads during the day, could feed commuter railway systems during rush hour and then serve lighting load in

2150-567: Is also waiving late and reconnection fees. The company has also directed its charitable foundation to provide $ 1 million in aid to help individuals and organizations fighting COVID-19. The $ 1 million will be offered to national groups like the American Red Cross and local organizations the company identifies. A number of controversies have surrounded the company's decisions to develop new routes for its electric power transmission lines. On February 13, 2007, The Washington Post reported that

2236-583: Is possible to store energy and produce electrical power at a later time as in pumped-storage hydroelectricity , thermal energy storage , flywheel energy storage , battery storage power station and so on. The world's largest form of storage for excess electricity, pumped-storage is a reversible hydroelectric plant. They are a net consumer of energy but provide storage for any source of electricity, effectively smoothing peaks and troughs in electricity supply and demand. Pumped storage plants typically use "spare" electricity during off peak periods to pump water from

2322-518: Is practically zero, but the available power varies widely—in particular, it may be zero during heavy storms at night. In some cases operators deliberately produce less power for economic reasons. The cost of fuel to run a load following power plant may be relatively high, and the cost of fuel to run a peaking power plant is even higher—they have relatively high marginal costs. Operators keep power plants turned off ("operational reserve") or running at minimum fuel consumption ("spinning reserve") most of

2408-459: Is produced in 150 countries, with the Asia-Pacific region generating 32 percent of global hydropower in 2010. China is the largest hydroelectricity producer, with 721 terawatt-hours of production in 2010, representing around 17 percent of domestic electricity use. Solar energy can be turned into electricity either directly in solar cells , or in a concentrating solar power plant by focusing

2494-410: Is used intermittently (peak load). Steam turbines generally operate at higher efficiency when operated at full capacity. Besides use of reject heat for process or district heating, one way to improve overall efficiency of a power plant is to combine two different thermodynamic cycles in a combined cycle plant. Most commonly, exhaust gases from a gas turbine are used to generate steam for a boiler and

2580-651: The Greenbrier Valley of West Virginia) and North Carolina Power (operating in North Carolina). In 1986, Dominion gained territory by expanding in Northern Virginia after purchasing the Virginia distribution territory of Potomac Electric Power Company (PEPCO). In 1987, the West Virginia assets of Dominion were sold to Utilicorp United becoming branded as West Virginia Power, but Dominion retained ownership of

2666-511: The Mount Storm Power Station in West Virginia. (In 1999, West Virginia Power would be sold to Allegheny Energy and folded into its Monongahela Power subsidiary; it and other Allegheny Energy subsidiaries have since been acquired in 2010 by FirstEnergy .) Throughout the 1980s and 1990s, Dominion initiated a series of expansions into regulated and non-regulated energy businesses, both domestically and internationally. During that era,

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2752-731: The Roscoe Wind Farm is the largest onshore wind farm in the world, producing 8000  MW of power, followed by the Zhang Jiakou (3000 MW). As of January 2022, the Hornsea Wind Farm in United Kingdom is the largest offshore wind farm in the world at 1218 MW, followed by Walney Wind Farm in United Kingdom at 1026 MW. In 2021, the worldwide installed capacity of power plants increased by 347 GW. Solar and wind power plant capacities rose by 80% in one year.  As of 2022 ,

2838-484: The largest photovoltaic (PV) power plants in the world are led by Bhadla Solar Park in India, rated at 2245 MW. Solar thermal power stations in the U.S. have the following output: Large coal-fired, nuclear, and hydroelectric power stations can generate hundreds of megawatts to multiple gigawatts. Some examples: Gas turbine power plants can generate tens to hundreds of megawatts. Some examples: The rated capacity of

2924-439: The second law of thermodynamics ; therefore, there is always heat lost to the environment. If this loss is employed as useful heat, for industrial processes or district heating , the power plant is referred to as a cogeneration power plant or CHP (combined heat-and-power) plant. In countries where district heating is common, there are dedicated heat plants called heat-only boiler stations . An important class of power stations in

3010-707: The 2008 report (Dominion ranked 27th with a Toxic Score of 58,642) and the 2005 report (Dominion ranked 19th with a Toxic Score of 117,712) In December 2007, a settlement between the United States Environmental Protection Agency (EPA) and Dominion Energy of Brayton Point called for the company's power generating plant to install new closed cycle cooling towers that provided significant protection to aquatic organisms in Mount Hope Bay , which flows into Narragansett Bay . The 2007 settlement resolved an ongoing dispute that began in 2003. The EPA issued

3096-490: The 20th century central stations became larger, using higher steam pressures to provide greater efficiency, and relying on interconnections of multiple generating stations to improve reliability and cost. High-voltage AC transmission allowed hydroelectric power to be conveniently moved from distant waterfalls to city markets. The advent of the steam turbine in central station service, around 1906, allowed great expansion of generating capacity. Generators were no longer limited by

3182-585: The Dominion PAC donated a total of $ 814,885 with 56% going to Republicans and 41% to Democrats . In 2008, the PAC donated $ 539,038 with 50% going to Republicans and 47% to Democrats. In the 2016 election cycle, the PAC contributed $ 1,276,016.17 to various political candidates and committees. Lobbyists for Dominion worked to pass West Virginia's Critical Infrastructure Protection Act, a 2021 law creating felony penalties for protests targeting oil and gas facilities, which

3268-562: The Drakensberg, Ingula Pumped Storage Scheme . The power generated by a power station is measured in multiples of the watt , typically megawatts (10 watts) or gigawatts (10 watts). Power stations vary greatly in capacity depending on the type of power plant and on historical, geographical and economic factors. The following examples offer a sense of the scale. Many of the largest operational onshore wind farms are located in China. As of 2022,

3354-487: The Middle East uses by-product heat for the desalination of water. The efficiency of a thermal power cycle is limited by the maximum working fluid temperature produced. The efficiency is not directly a function of the fuel used. For the same steam conditions, coal-, nuclear- and gas power plants all have the same theoretical efficiency. Overall, if a system is on constantly (base load) it will be more efficient than one that

3440-651: The U.S. In 2017, Dominion was listed at #238 on the Fortune 500 . A book about the company's 100-year history, Dominion’s First Century: A Legacy of Service , was published in 2010. In 2022, 18 percent of Dominion's total electric production came from coal , 23 percent from nuclear power , 48 percent from natural gas , and 11 percent from Hydro and other renewables. A strategy is being developed for renewable energy sources, primarily wind and biomass , and conservation and efficiency programs to play an increasingly important role in meeting future energy needs and minimizing

3526-619: The United States, Ferranti and Charles Hesterman Merz in UK, and many others . 2021 world electricity generation by source. Total generation was 28 petawatt-hours . In thermal power stations, mechanical power is produced by a heat engine that transforms thermal energy , often from combustion of a fuel , into rotational energy. Most thermal power stations produce steam, so they are sometimes called steam power stations. Not all thermal energy can be transformed into mechanical power, according to

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3612-755: The Western Public Service Corporation in October 1928. Mountain Fuel Supply Company became the company's hydrocarbon exploration and production affiliate. During the Great Depression , its stock price fell from $ 46/share in September 1929 to $ 3/share in 1932 as most families could not afford natural gas. In 1935, the shareholders voted to reorganize the company, merging it with its subsidiaries and moving its headquarters from Pittsburgh to Salt Lake City. Mountain Fuel Supply Company became

3698-549: The area serviced by the imported gas would not cause additional leaks in the District of Columbia and Northern Virginia suburbs. In 2010, the Political Economy Research Institute ranked Dominion Resources 51st among corporations emitting airborne pollutants in the United States . Dominion's Toxic Score of 16,656 (pounds released × toxicity × population exposure) represents a significant improvement from both

3784-606: The company acquired Interstate Brick, the largest brick-making facility in the Western United States. It was sold in 1990. In 1972, the company discovered the Brady field, about 30 miles southeast of Wyoming. In 1976, certain shareholders attempted to replace management. At issue was whether management would "acknowledge or act upon the fact that the company was more of an oil company than a natural gas utility". In 1984, Mountain Fuel Supply Company shareholders voted to return to

3870-620: The company also established itself as a world-class operator of nuclear power stations . In 2000, Dominion bought Consolidated Natural Gas Company (CNG) of Pittsburgh , and added natural gas service to its energy delivery network in the energy-intensive markets in the Northeastern quadrant of the U.S. In 2001, Dominion bought Louis Dreyfus Natural Gas Company , adding to its natural gas delivery network. Dominion re-branded all of its operations in 2000 to Dominion from Virginia and North Carolina Power as well as Consolidated Gas in order to create

3956-728: The company's environmental footprint. Dominion's corporate roots reach back to the Colonial era through predecessor companies that operated canal and river barging, street lighting, railways, and electric trolleys. In 1787, the Virginia General Assembly created the Appomattox Trustees to promote navigation along the Appomattox River . In 1795, the trustees formed the Upper Appomattox Company to build dams along

4042-536: The cooling machinery. These screens are only partially effective and as a result billions of fish and other aquatic organisms are killed by power plants each year. For example, the cooling system at the Indian Point Energy Center in New York kills over a billion fish eggs and larvae annually. A further environmental impact is that aquatic organisms which adapt to the warmer discharge water may be injured if

4128-731: The country's second offshore wind project, but the first of its kind to be installed in federal waters, sited roughly 27 miles off the Virginian coast. Dominion currently has two turbines constructed as a pilot project, planning for all turbines to be in place by 2026. In December 2020, the keel was laid for the project's novel Jones Act -compliant offshore WTIV , the Charybdis , under construction at Keppel AmFELS shipyards in Brownsville, Texas . The Dominion Political Action Committee (PAC) has been very active in donating to Virginia candidates. In 2009,

4214-411: The energy carried by ocean waves , tides , salinity , and ocean temperature differences . The movement of water in the world's oceans creates a vast store of kinetic energy , or energy in motion. This energy can be harnessed to generate electricity to power homes, transport and industries. The term marine energy encompasses both wave power —power from surface waves, and tidal power —obtained from

4300-409: The evening, thus improving the system load factor and reducing the cost of electrical energy overall. Many exceptions existed, generating stations were dedicated to power or light by the choice of frequency, and rotating frequency changers and rotating converters were particularly common to feed electric railway systems from the general lighting and power network. Throughout the first few decades of

4386-858: The holding company structure, and chose the name Questar Corporation as the new parent holding company name. In 1989, the company established a subsidiary, Questar Telecom, which acquired specialized mobile radio operations. It also formed FuelMaker, a joint venture to market a new device that would allow natural gas vehicles to be refueled at home. In 1993, the company had three major lines of business: exploration and production activities conducted by Wexpro Company, Celsius Energy Company, and Universal Resources Corporation; interstate transmission activities conducted by Questar Pipeline Company; and retail distribution activities conducted by Mountain Fuel. In 1994, it acquired oil and gas properties from Union Pacific Resources for $ 94.5 million. In August, Questar Telecom

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4472-406: The kinetic energy of large bodies of moving water. Offshore wind power is not a form of marine energy, as wind power is derived from the wind , even if the wind turbines are placed over water. The oceans have a tremendous amount of energy and are close to many if not most concentrated populations. Ocean energy has the potential of providing a substantial amount of new renewable energy around

4558-425: The light to run a heat engine. A solar photovoltaic power plant converts sunlight into direct current electricity using the photoelectric effect . Inverters change the direct current into alternating current for connection to the electrical grid. This type of plant does not use rotating machines for energy conversion. Solar thermal power plants use either parabolic troughs or heliostats to direct sunlight onto

4644-614: The line, saying that there was no real need, and that Dominion was trying to bring cheap electricity from the Midwest . Dominion contested, saying that the line would bring needed electricity to growing Northern Virginia . The proposal was accepted by the State Corporation Commission (SCC) on October 7, 2008. On February 15, 2008, the SCC approved a controversial proposal for a 230 kV Dominion Virginia transmission line that would travel above ground for 1.8 miles (2.9 km) along

4730-424: The most stringent air permit for any coal fired power plant in the nation currently. The plant will burn up to 20% biomass along with coal and a small amount of waste coal known as gob . The plant's carbon dioxide emissions are currently projected to be 5.4 million tons per year. High levels of mercury emitted from the plant, which is controlled by activated carbon injection to reduce the emissions, as well as

4816-592: The name of the reorganized consolidated company. In the mid-1930s, the company discovered natural gas in the Clay Basin region northeast of Utah. During World War II , the company was required by the War Production Board to halt new natural gas utility signups so that resources can be conserved for the war effort. In 1946, the company discovered the Church Buttes field in southwestern Wyoming. In 1971,

4902-530: The nation's largest natural gas storage facility, amounting to more than 975 billion cubic feet (2.76 × 10 m) of storage capacity. The company's Cove Point liquefied natural gas (LNG) import terminal on the Chesapeake Bay is one of the nation's largest and busiest facilities of its kind. Dominion serves more than 5 million retail energy customers in the Midwest, mid-Atlantic and Northeast regions of

4988-479: The ocean or a lake, river, or cooling pond instead of a cooling tower. This single pass or once-through cooling system can save the cost of a cooling tower and may have lower energy costs for pumping cooling water through the plant's heat exchangers . However, the waste heat can cause thermal pollution as the water is discharged. Power plants using natural bodies of water for cooling are designed with mechanisms such as fish screens , to limit intake of organisms into

5074-557: The past, but almost all modern turbines being produced today use a three-bladed, upwind design. Grid-connected wind turbines now being built are much larger than the units installed during the 1970s. They thus produce power more cheaply and reliably than earlier models. With larger turbines (on the order of one megawatt), the blades move more slowly than older, smaller, units, which makes them less visually distracting and safer for birds. Marine energy or marine power (also sometimes referred to as ocean energy or ocean power ) refers to

5160-497: The pipeline in July 2020, citing cost increases due to lawsuits, largely from environmental groups opposed to the project. Dominion is constructing a massive offshore wind farm off of the coast of Virginia , the project being named Coastal Virginia Offshore Wind , or CVOW. This project will add more than 2,600 megawatts of clean energy to their grid, with 220 wind turbines capable of powering 650,000 homes at peak. This project will be

5246-651: The plant shuts down in cold weather . Water consumption by power stations is a developing issue. In recent years, recycled wastewater, or grey water , has been used in cooling towers. The Calpine Riverside and the Calpine Fox power stations in Wisconsin as well as the Calpine Mankato power station in Minnesota are among these facilities. Power stations can generate electrical energy from renewable energy sources. In

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5332-438: The power company was planning to change the route of one 500 kV transmission line to appease critics in Northern Virginia from a route that would cut through protected forest and farmland to a southern route that would bypass nature preserves and Civil War sites by running adjacent to existing power lines. However, U.S. Congressional Representative Frank Wolf ( R - VA) and Governor Tim Kaine ( D ) remained opposed to

5418-406: The power themselves, in which case the generation output is classified into gross generation , and net generation . Gross generation or gross electric output is the total amount of electricity generated by a power plant over a specific period of time. It is measured at the generating terminal and is measured in kilowatt-hours (kW·h), megawatt-hours (MW·h), gigawatt-hours (GW·h) or for

5504-559: The power transmission of belts or the relatively slow speed of reciprocating engines, and could grow to enormous sizes. For example, Sebastian Ziani de Ferranti planned what would have reciprocating steam engine ever built for a proposed new central station, but scrapped the plans when turbines became available in the necessary size. Building power systems out of central stations required combinations of engineering skill and financial acumen in equal measure. Pioneers of central station generation include George Westinghouse and Samuel Insull in

5590-442: The program recognizing top company volunteers. Dominion honors the volunteers by paying $ 1000 to the charity of the individual's choice. In 2016, twelve employees from Ohio, Pennsylvania, Virginia and West Virginia were selected. In 2020, Dominion responded to the coronavirus pandemic by stopping service disconnects for non-payment and helping customers who had been disconnected for not making payments to reconnect to its service. It

5676-407: The risks before opening the plant. In 2005, Washington Gas claimed that the natural gas imported at the plant was too "hot," meaning that it contained fewer heavy hydrocarbons and burned hotter. Washington Gas said that the hot gas caused problems for its customers and caused many of its mains to break. Dominion denied that the imported gas was the cause of the breaks and stated that expanding

5762-488: The river for industrial use, beginning Dominion's history. In 1901, the water rights passed to the newly formed Virginia Passenger & Power Company. Dominion's closest direct corporate ancestor, Virginia Railway & Power Company, was founded by Frank Jay Gould on June 29, 1909. It bought Virginia Passenger & Power soon afterward. In 1925, the name was changed to the Virginia Electric and Power Company (VEPCO),

5848-690: The road, which was the monopoly of the gas companies. The customers included the City Temple and the Old Bailey . Another important customer was the Telegraph Office of the General Post Office , but this could not be reached through the culverts. Johnson arranged for the supply cable to be run overhead, via Holborn Tavern and Newgate . In September 1882 in New York, the Pearl Street Station

5934-777: The same power plant. Natural draft wet cooling towers at many nuclear power plants and large fossil-fuel-fired power plants use large hyperboloid chimney -like structures (as seen in the image at the right) that release the waste heat to the ambient atmosphere by the evaporation of water. However, the mechanical induced-draft or forced-draft wet cooling towers in many large thermal power plants, nuclear power plants, fossil-fired power plants, petroleum refineries , petrochemical plants , geothermal , biomass and waste-to-energy plants use fans to provide air movement upward through down coming water and are not hyperboloid chimney-like structures. The induced or forced-draft cooling towers are typically rectangular, box-like structures filled with

6020-660: The site was blockaded by activists from the Rainforest Action Network . In 2001 when Dominion's Dominion Cove Point LNG subsidiary was scheduled to reopen, many local residents were concerned about the proximity (only 3 miles) to the Calvert Cliffs Nuclear Power Plant , and the damage that could be caused by an attack or an explosion at the plant. Residents thought that the Federal Energy Regulatory Commission did not consider

6106-418: The size of the deal is estimated at $ 10 billion. In February 2022, Dominion Energy sold one of its subsidiary, Dominion Energy West Virginia, to Hearthstone Utilities Inc. for $ 690 million. Hearthstone will continue operations in West Virginia under the name: "Hope Gas". In September 2023, Enbridge agreed to acquire East Ohio Gas, Questar Gas , and Public Service Co. of North Carolina, from Dominion for

6192-506: The storage is used for peaking power , where water in the upper reservoir is allowed to flow back to a lower reservoir through a turbine and generator. Unlike coal power stations, which can take more than 12 hours to start up from cold, a hydroelectric generator can be brought into service in a few minutes, ideal to meet a peak load demand. Two substantial pumped storage schemes are in South Africa, Palmiet Pumped Storage Scheme and another in

6278-448: The time. Operators feed more fuel into load following power plants only when the demand rises above what lower-cost plants (i.e., intermittent and base load plants) can produce, and then feed more fuel into peaking power plants only when the demand rises faster than the load following power plants can follow. Not all of the generated power of a plant is necessarily delivered into a distribution system. Power plants typically also use some of

6364-556: The underground construction of the line along that section of the trail as part of a four-part statewide pilot program for the development of underground transmission lines. Sponsored by Delegate Joe T. May ( R - Loudoun ), the legislation exempted the project from any requirements for further SCC analyses relating to the impacts of the route, including environmental impacts and impacts upon historical resources. The legislation went into effect when Virginia Governor Tim Kaine approved it on April 2, 2008. The company began constructing

6450-549: The world's first public coal-fired power station , the Edison Electric Light Station , was built in London, a project of Thomas Edison organized by Edward Johnson . A Babcock & Wilcox boiler powered a 93 kW (125 horsepower) steam engine that drove a 27-tonne (27-long-ton) generator. This supplied electricity to premises in the area that could be reached through the culverts of the viaduct without digging up

6536-415: The world. Salinity gradient energy is called pressure-retarded osmosis. In this method, seawater is pumped into a pressure chamber that is at a pressure lower than the difference between the pressures of saline water and fresh water. Freshwater is also pumped into the pressure chamber through a membrane, which increases both the volume and pressure of the chamber. As the pressure differences are compensated,

6622-504: The year 2022. The program was launched under the authority of the Grid Transformation & Security Act, a state law signed by Virginia Governor Ralph Northam . "The law paves the way for expanded investments in renewable energy , smart grid technology, a stronger, more secure grid and energy efficiency programs . . ." In July 2020, Dominion announced plans to sell natural gas transmission and storage assets to Berkshire Hathaway ;

6708-587: Was a natural gas public utility based in Salt Lake City, Utah . In June 2024, it was reported that Enbridge had completed its acquisition of the company for $ 4.3 billion. Questar Corporation was organized in Utah in 1984 as the holding company for Mountain Fuel Supply Company. In 1922, the Ohio Oil Company discovered natural gas near Rock Springs, Wyoming . Ohio Oil merged with two other companies to form

6794-509: Was a partner in a joint venture that planned to build the 600 miles (970 km) Atlantic Coast Pipeline , a natural gas pipeline to run between West Virginia and North Carolina. Though the project had faced stiff opposition from environmental and community heritage groups along its route, ground was broken on the pipeline in Lewis County, West Virginia, in May 2018. Dominion and Duke Energy canceled

6880-440: Was acquired by Diamondback Energy . In March 2012, the company moved from 180 East 100 South to its new headquarters building, a $ 45 million 170,000 square foot 6-story building at 333 South State Street in downtown Salt Lake City, Utah. It is one of the first LEED Silver energy-efficient buildings in downtown Salt Lake City. In September 2016, the company was acquired by Dominion Resources . In June 2024, nine months after

6966-505: Was completed in September 2016. In 2017, Dominion Resources rebranded itself to Dominion Energy, following with a new logo. In January 2018, Reuters reported that Dominion Energy would be buying SCANA Corporation for $ 7.9 billion.; the acquisition was completed in January 2019. In the summer of 2018, Dominion Energy launched a "grid transformation program." The program's aim was to build 3,000 megawatts worth of new solar and wind energy by

7052-578: Was described by its sponsor John Kelly as having been "requested by the natural gas industry". Dominion's social investment program is carried out primarily through the Dominion Foundation, which gives about $ 20 million each year to charities in the states in which Dominion does business. Dominion also has the Benjamin J. Lambert, III, Volunteer of the Year Program. 2017 was the thirty-third year of

7138-451: Was established by Edison to provide electric lighting in the lower Manhattan Island area. The station ran until destroyed by fire in 1890. The station used reciprocating steam engines to turn direct-current generators. Because of the DC distribution, the service area was small, limited by voltage drop in the feeders. In 1886 George Westinghouse began building an alternating current system that used

7224-617: Was replaced by Alan K. Allred. In 2005, Knox Lawrence International acquired Consonus Inc., Consonus Inc., a Questar Corp. subsidiary that managed computer data centers for businesses. In November 2006, the company was added to the S&;P 500 . It was removed from the index in 2010. On July 1, 2010, the company completed the corporate spin-off of its exploration and production business as QEP Resources. In December 2015, Tesoro Logistics LP acquired its natural-gas pipeline and processing business for $ 2.5 billion in cash. In 2021, QEP Resources

7310-509: Was sold to Nextel Communications for 3.9 million shares of stock. On January 1, 1998, Mountain Fuel Supply Company was renamed Questar Gas Company. In September, the company acquired HSRTW Inc., which owned oil and gas reserves in Oklahoma, for $ 155 million. In 2001, the company acquired Shenandoah Energy for $ 406 million in cash and assumed debt. In April 2003, D. N. "Nick" Rose, president and chief executive officer of Questar, retired and

7396-456: Was the natural gas and oil exploration and production subsidiary of Dominion, and by 2007 was one of the largest independent natural gas and oil operators. During 2007, Dominion sold the majority of its oil and natural gas exploration and production assets to put additional focus on growing its electric generation and energy distribution, transmission, storage and retail businesses mainly in Virginia, West Virginia, and North Carolina. Dominion

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