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61-477: The infrastructure was constructed between 1903 and 1962, the first elements engineered and built by the California Oregon Power Company ("Copco"). That company merged into Pacific Power and Light in 1961, and is now the energy company PacifiCorp . PacifiCorp continues to operate the project for profit, producing a maximum of 169 MW from seven generating stations. The company owns all but one of

122-417: A "unit train" may be 2 km long, containing 130-140 cars with around 100 tonnes of coal in each one, for a total load of over 10,000 tonnes. A large plant under full load requires at least one coal delivery this size every day. Plants may get as many as three to five trains a day, especially in "peak season" during the hottest summer or coldest winter months (depending on local climate) when power consumption

183-484: A capacity of 9,140 megawatts. 70.6% of the generation is from thermal sources (i.e., coal or natural gas), 6.7% from hydroelectric sources, and 0.2% from renewable sources. 22.5% of PacifiCorp's generation is purchased from other suppliers or under contracts. The company is planning on keeping only 3 of its 22 coal-fired power stations operational beyond 2040 and is planning to source 56% of its yearly consumption with renewable energy by 2040. Pacific Power & Light

244-628: A further agreement to remove those four dams by the year 2020, contingent only on approval by the Federal Energy Regulatory Commission . The new plan has been endorsed by the governors of California and Oregon. Dam removal was endorsed by U.S. Secretary of the Interior Sally Jewell in 2016, though that endorsement was later rescinded by U.S. Secretary of the Interior David Bernhardt in 2019. The Copco #2 dam

305-561: A regulated electric utility with service territory throughout Utah , Wyoming , and southeastern Idaho, headquartered in Salt Lake City, Utah . PacifiCorp operates one of the largest privately held transmission systems in the U.S. within the western Energy Imbalance Market. Pacific Power and Rocky Mountain Power combined serve over 1.6 million residential customers, 202,000 commercial customers, and 37,000 industrial and irrigation customers, for

366-528: A substantial reduction in coal-related activities. Studies, including finance-based accounting of coal emissions, have revealed a misalignment of coal financing with climate objectives. Major nations, such as China, Japan, and the U.S., have extended financial support to overseas coal power infrastructure. The largest backers are Chinese banks under the Belt and Road Initiative (BRI). This support has led to significant long-term climate and financial risks and harms

427-481: A thermal power station burning other fuel types, coal specific fuel processing and ash disposal is required. For units over about 200  MW capacity, redundancy of key components is provided by installing duplicates of the forced and induced draft fans, air preheaters, and fly ash collectors. On some units of about 60 MW, two boilers per unit may instead be provided. The hundred largest coal power stations range in size from 3,000 MW to 6,700 MW. Coal

488-447: A total of approximately 1,813,000 customers. The service area is 143,000 square miles (370,000 km ). The company owns and maintains 16,500 miles (26,600 km) of long-distance transmission lines, 64,000 miles (103,000 km) of distribution lines, and 900 substations. PacifiCorp owns, maintains and operates generation assets and manages the commercial and trading operations of the company. PacifiCorp owns 68 generating plants with

549-428: A type of thermal power station , a coal-fired power station converts chemical energy stored in coal successively into thermal energy , mechanical energy and, finally, electrical energy . The coal is usually pulverized and then burned in a pulverized coal-fired boiler . The heat from the burning pulverized coal converts boiler water to steam , which is then used to spin turbines that turn generators . Compared to

610-552: Is 10,556MW. Of this, 56% is coal, 24% is natural gas, 10% is hydroelectric, and 10% is renewable. Major generation facilities include: PacifiCorp also owns and operates several captive coal mines located at or very near some of its generation plants. In Wyoming, PacifiCorp operates and has partial interest in Jim Bridger Mine and owns the Dave Johnston Mine, which is in final reclamation. The company also owned and operated

671-413: Is a coal power generation technology that uses a high pressure gasifier to turn coal (or other carbon based fuels) into pressurized gas—synthesis gas ( syngas ). Converting the coal to gas enables the use of a combined cycle generator , typically achieving high efficiency. The IGCC process can also enable removal of some pollutants from the syngas prior to the power generation cycle. However, the technology

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732-408: Is a growing call for stricter policies regarding overseas coal financing. Countries, including Japan and the U.S., have faced criticism for permitting the financing of certain coal projects. Strengthening the policies, potentially by banning public financing of coal projects entirely, would enhance their climate efforts and credibility. In addition, Enhanced transparency in disclosing financing details

793-530: Is a type of fossil fuel power station . The coal is usually pulverized and then burned in a pulverized coal-fired boiler . The furnace heat converts boiler water to steam , which is then used to spin turbines that turn generators . Thus chemical energy stored in coal is converted successively into thermal energy , mechanical energy and, finally, electrical energy . Coal-fired power stations emit about 12 billion tonnes of carbon dioxide each year, about one fifth of world greenhouse gas emissions , so are

854-402: Is among the few coal-dependent fast developing countries that fully pledged to phase out unbated coal power by the 2040s or as soon as possible thereafter. Ammonia has a high hydrogen density and is easy to handle. It can be used as storing carbon-free fuel in gas turbine power generation and help significantly reduce CO₂ emissions as a fuel. In Japan, the first major four-year test project

915-456: Is captured and removed from the flue gas by electrostatic precipitators or fabric bag filters (or sometimes both) located at the outlet of the furnace and before the induced draft fan. The fly ash is periodically removed from the collection hoppers below the precipitators or bag filters. Generally, the fly ash is pneumatically transported to storage silos and stored on site in ash ponds , or transported by trucks or railroad cars to landfills . At

976-427: Is costly compared with conventional coal-fired power stations. As coal is mainly carbon , coal-fired power stations have a high carbon intensity . On average, coal power stations emit far more greenhouse gas per unit electricity generated compared with other energy sources (see also life-cycle greenhouse-gas emissions of energy sources ). In 2018 coal burnt to generate electricity emitted over 10 Gt CO 2 of

1037-964: Is crucial for evaluating their environmental impacts. In India capacity factors are below 60%. In 2020 coal-fired power stations in the United States had an overall capacity factor of 40%; that is, they operated at a little less than half of their cumulative nameplate capacity. If global warming is limited to well below 2 °C as specified in the Paris Agreement , coal plant stranded assets of over US$ 500 billion are forecast by 2050, mostly in China. In 2020 think tank Carbon Tracker estimated that 39% of coal-fired plants were already more expensive than new renewables and storage and that 73% would be by 2025. As of 2020 about half of China's coal power companies are losing money and old and small power plants "have no hope of making profits". As of 2021 India

1098-399: Is high. Modern unloaders use rotary dump devices, which eliminate problems with coal freezing in bottom dump cars. The unloader includes a train positioner arm that pulls the entire train to position each car over a coal hopper. The dumper clamps an individual car against a platform that swivels the car upside down to dump the coal. Swiveling couplers enable the entire operation to occur while

1159-949: Is often due to burning low quality coal, such as lignite , in plants lacking modern flue gas treatment. Early deaths due to air pollution have been estimated at 200 per GW-year, however they may be higher around power plants where scrubbers are not used or lower if they are far from cities. Evidence indicates that exposure to sulfur, sulfates, or PM 2.5 from coal emissions may be associated with higher relative morbidity or mortality risk than that to other PM 2.5 constituents or PM 2.5 from other sources per unit concentration. Pollutants such as heavy metals leaching into ground water from unlined coal ash storage ponds or landfills pollute water, possibly for decades or centuries. Pollutant discharges from ash ponds to rivers (or other surface water bodies) typically include arsenic , lead, mercury , selenium , chromium , and cadmium . Mercury emissions from coal-fired power plants can fall back onto

1220-476: Is prepared for use by crushing the rough coal to pieces less than 5 cm (2 in) in size. The coal is then transported from the storage yard to in-plant storage silos by conveyor belts at rates up to 4,000 tonnes per hour. In plants that burn pulverized coal, silos feed coal to pulverizers (coal mills) that take the larger 5 cm pieces, grind them to the consistency of talcum powder , sort them, and mix them with primary combustion air, which transports

1281-562: The Klamath Basin , the multi-party Klamath Basin Restoration Agreement was signed in early 2008. Parties to the agreement included the state of California , the state of Oregon , three Native American tribes, four counties, and 35 other local organizations and individuals. At the time PacifiCorp faced a relicensing cycle with Federal Energy Regulatory Commission , with potentially expensive fixes for salmon passage and to address

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1342-723: The Mercury and Air Toxics Standards (MATS) regulation, by effluent guidelines for water pollution , and by solid waste regulations under the Resource Conservation and Recovery Act (RCRA). Coal-fired power stations continue to pollute in lightly regulated countries; such as the Western Balkans , India, Russia and South Africa; causing over a hundred thousand early deaths each year. Damage to health from particulates , sulphur dioxide and nitrogen oxide occurs mainly in Asia and

1403-568: The 34 Gt total from fuel combustion (the overall total greenhouse gas emissions for 2018 was 55 Gt CO 2 e ). From 2015 to 2020, although coal generation hardly fell in absolute terms, some of its market share was taken by wind and solar. In 2020 only China increased coal power generation, and globally it fell by 4%. However, in 2021, China declared that it limited coal generation until 2025 and subsequently phase it out over time. The UN Secretary General has said that OECD countries should stop generating electricity from coal by 2030 and

1464-759: The Deer Creek Mine in Utah, near the Huntington Plant but closed it in 2015 and has a partial interest in the Trapper Mine in Colorado. Calling it a "new era of utility involvement in transportation electrification," the Portland Business Journal in 2018 described PacifiCorp's electric vehicle promotion program as a plan that promises new electric vehicle charging sites, outreach and education efforts. The program

1525-634: The Global Coal to Clean Power pledge. However, intricate challenges remain, particularly in developing countries such as Indonesia and Vietnam. There are 4 main types of coal-fired power station in increasing order of efficiency are: subcritical, supercritical , ultra-supercritical and cogeneration (also called combined heat and power or CHP). Subcritical is the least efficient type, however recent innovations have allowed retrofits to older subcritical plants to meet or even exceed efficiency of supercritical plants. Integrated gasification combined cycle (IGCC)

1586-463: The Klamath, operated primarily for agricultural water storage. The Link River Dam belongs to both. PacifiCorp owned all project dams, except for Link River Dam , which was owned by the U.S. Bureau of Reclamation . All dams were on the mainstem of the Klamath, except for Fall Creek Dam, on a tributary. The project's dams included: As resolution of several long-range issues centered on water rights in

1647-493: The U.S. alone, such particulates, known as PM 2.5 (particulates with a diameter of 2.5 μm or less), caused at least 460,000 excess deaths over two decades. In some countries pollution is somewhat controlled by best available techniques , for example those in the EU through its Industrial Emissions Directive . In the United States, coal-fired plants are governed at the national level by several air pollution regulations, including

1708-529: The bottom of the furnace, there is a hopper for collection of bottom ash . This hopper is kept filled with water to quench the ash and clinkers falling down from the furnace. Arrangements are included to crush the clinkers and convey the crushed clinkers and bottom ash to on-site ash ponds, or off-site to landfills. Ash extractors are used to discharge ash from municipal solid waste–fired boilers. A well-designed energy policy , energy law and electricity market are critical for flexibility. Although technically

1769-421: The cars are still coupled together. Unloading a unit train takes about three hours. Shorter trains may use railcars with an "air-dump", which relies on air pressure from the engine plus a "hot shoe" on each car. This "hot shoe" when it comes into contact with a "hot rail" at the unloading trestle, shoots an electric charge through the air dump apparatus and causes the doors on the bottom of the car to open, dumping

1830-641: The coal on a traveling grate or the cyclone burners, a specific kind of combustor that can efficiently burn larger pieces of fuel. Plants designed for lignite (brown coal) are used in locations as varied as Germany, Victoria, Australia , and North Dakota . Lignite is a much younger form of coal than black coal. It has a lower energy density than black coal and requires a much larger furnace for equivalent heat output. Such coals may contain up to 70% water and ash , yielding lower furnace temperatures and requiring larger induced-draft fans. The firing systems also differ from black coal and typically draw hot gas from

1891-469: The coal through the opening in the trestle. Unloading one of these trains takes anywhere from an hour to an hour and a half. Older unloaders may still use manually operated bottom-dump rail cars and a "shaker" attached to dump the coal. A collier (cargo ship carrying coal) may hold 41,000 tonnes (40,000 long tons) of coal and takes several days to unload. Some colliers carry their own conveying equipment to unload their own bunkers; others depend on equipment at

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1952-406: The coal to the boiler furnace and preheats the coal in order to drive off excess moisture content. A 500 MW e plant may have six such pulverizers, five of which can supply coal to the furnace at 250 tonnes per hour under full load. In plants that do not burn pulverized coal, the larger 5 cm pieces may be directly fed into the silos which then feed either mechanical distributors that drop

2013-543: The collapse of fish and invertebrate populations. As of 2018 local pollution in China, which has by far the most coal-fired power stations, is forecast to be reduced further in the 2020s and 2030s, especially if small and low efficiency plants are retired early. Coal power plants tend to serve as base load technology, as they have high availability factors, and are relatively difficult and expensive to ramp up and down. As such, they perform poorly in real-time energy markets , where they are unable to respond to changes in

2074-438: The cost of generation, but there is the risk newer plants may become stranded assets . The UN Secretary General has said that OECD countries should stop generating electricity from coal by 2030, and the rest of the world by 2040. The first coal-fired power stations were built in the late 19th century and used reciprocating engines to generate direct current . Steam turbines allowed much larger plants to be built in

2135-486: The dams. In 2016, four of the project's dams were scheduled for removal by the year 2020, pending approval by the governing Federal Energy Regulatory Commission . A fifth ran at reduced output, facing eventual decommissioning. All dams were removed by August, 2024. The project can be distinguished from the Klamath Project which is a set of United States Bureau of Reclamation (USBR) dams on upstream tributaries of

2196-446: The early 20th century and alternating current was used to serve wider areas. Coal is delivered by highway truck, rail , barge , collier ship or coal slurry pipeline . Generating stations are sometimes built next to a mine; especially one mining coal, such as lignite , which is not valuable enough to transport long-distance; so may receive coal by conveyor belt or massive diesel-electric -drive trucks . A large coal train called

2257-509: The fifth city in the world with central station electricity. In 1954, Pacific Power & Light merged with the Mountain States Power Company , essentially doubling the company's service area. In 1961, the company purchased the California Oregon Power Company, extending its service into southern Oregon and northern California. In 1977, PacifiCorp spun off its coal mining interests into a mining company known as NERCO , which

2318-402: The flexibility of some coal-fired power stations could be improved they are less able to provide dispatchable generation than most gas-fired power plants . The most important flexibility is low minimum load; however, some flexibility improvements may be more expensive than renewable energy with batteries . As of 2020 two-thirds of coal burned is to generate electricity. In 2020 coal was

2379-543: The following exceptions: Bountiful, Kaysville, Lehi, Logan, Provo, Murray, Monroe, Monticello, Springville, St. George Buffalo, Casper, Cody, Douglas, Evanston, Green River, Kemmerer, Lander, Laramie, Rawlins, Riverton, Rock Springs, Thermopolis In 2023, a jury ordered PacifiCorp to pay $ 70 million in punitive damages to 17 homeowners negatively impacted by the 2020 Oregon wildfires . In August 2024, PacifiCorp revealed that it faced at least $ 46 billion in claims resulting from four separate class action complaints related to

2440-445: The furnace-exit level and mix it with the incoming coal in fan-type mills that inject the pulverized coal and hot gas mixture into the boiler. The ash is often stored in ash ponds . Although the use of ash ponds in combination with air pollution controls (such as wet scrubbers ) decreases the amount of airborne pollutants, the structures pose serious health risks for the surrounding environment. Power utility companies have often built

2501-407: The global energy landscape and its environmental and climate impacts have made it a subject of concern. The misalignment of coal financing with international climate objectives, particularly the Paris Agreement , has garnered attention. The Paris Agreement aims to restrict global warming to well below 2 degrees Celsius and ideally limit it to 1.5 degrees Celsius. Achieving these goals necessitates

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2562-598: The growth of the toxic bacteria Microcystis aeruginosa in the Copco and Iron Gate Reservoirs. On September 29, 2009, Pacificorp reached an agreement in principle with the other KBRA parties to remove the John C. Boyle Dam, the Iron Gate Dam, and Copco #1 and #2, pending Congressional approval. Congress did not act, so as of February 2016, the states of Oregon and California, the dam owners, federal regulators and other parties reached

2623-402: The land and water in rain, and then be converted into methylmercury by bacteria. Through biomagnification , this mercury can then reach dangerously high levels in fish. More than half of atmospheric mercury comes from coal-fired power plants. Coal-fired power plants also emit sulfur dioxide and nitrogen . These emissions lead to acid rain , which can restructure food webs and lead to

2684-560: The largest source of electricity at 34%. Over half coal generation in 2020 was in China. About 60% of electricity in China, India and Indonesia is from coal. In 2020 worldwide 2,059 GW of coal power was operational, 50 GW was commissioned, and 25 GW started construction (most of these three in China); and 38 GW retired (mostly USA and EU). In 2023, global coal power capacity increased to 2,130 GW, driven by China adding 47.4 GW. At COP26 2021, countries have joined

2745-454: The locational marginal price. In the United States, this has been especially true in light of the advent of cheap natural gas, which can serve as a fuel in dispatchable power plants that substitute the role of baseload on the grid. In 2020 the coal industry was subsidized $ US18 billion. Coal financing is the financial support provided for coal-related projects, encompassing coal mining and coal-fired power stations. Its role in shaping

2806-611: The objectives of reducing CO2 emissions set by the Paris Agreement, of which China, the United States and Japan are signatories. A substantial portion of the associated CO 2 emissions is anticipated to occur after 2019. Coal financing poses challenges to the global decarbonization of the power generation sector. As renewable energy technologies become cost-competitive, the economic viability of coal projects diminishes, making past fossil fuel investments less attractive. To address these concerns and align with climate goals, there

2867-573: The plant. For transporting coal in calmer waters, such as rivers and lakes, flat-bottomed barges are often used. Barges are usually unpowered and must be moved by tugboats or towboats . For start up or auxiliary purposes, the plant may use fuel oil as well. Fuel oil can be delivered to plants by pipeline , tanker , tank car or truck. Oil is stored in vertical cylindrical steel tanks with capacities as high as 14,000 cubic metres (90,000 bbl). The heavier no. 5 "bunker" and no. 6 fuels are typically steam-heated before pumping in cold climates. As

2928-491: The ponds without liners , especially in the United States, and therefore chemicals in the ash can leach into groundwater and surface waters. Since the 1990s, power utilities in the U.S. have designed many of their new plants with dry ash handling systems. The dry ash is disposed in landfills, which typically include liners and groundwater monitoring systems. Dry ash may also be recycled into products such as concrete, structural fills for road construction and grout. Fly ash

2989-800: The previous rates until 2035. Pacific Power serves customers in Washington , Oregon and California . Major cities served include: As of December 31, 2009, Pacific Power serves 555,070 customers in Oregon, 126,665 customers in Washington, and 45,148 customers in California. Rocky Mountain Power serves customers in Idaho, Utah, and Wyoming. Major cities served include: Ammon, Lava Hot Springs, Malad City, Montpelier, Preston, Rigby, Rexburg, Saint Anthony, Shelley Rocky Mountain Power serves most major cities in Utah, with

3050-413: The residential rate for their excess energy that got sent back into the energy grid. As of August 2018, new rooftop solar installations were down 23 percent, likely due to the cancellation of the net metering program. New solar customers are paid by a transitional program that pays slightly less than the residential rate until 2033. People who installed solar panels prior to November 2017 are grandfathered at

3111-441: The rest of the world by 2040, otherwise limiting global warming to 1.5 °C, a target of the Paris Agreement , would be extremely difficult. A 2024 analysis by The Economist concluded that financing phase-out would be cheaper than carbon offsets . However phasing out in Asia can be a financial challenge as plants there are relatively young: in China the co-benefits of closing a plant vary greatly depending on its location. Vietnam

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3172-483: The single largest cause of climate change . More than half of all the coal-fired electricity in the world is generated in China. In 2020 the total number of plants started falling as they are being retired in Europe and America although still being built in Asia, almost all in China. Some remain profitable because costs to other people due to the health and environmental impact of the coal industry are not priced into

3233-575: The wildfires. Coal-fired power station A coal-fired power station or coal power plant is a thermal power station which burns coal to generate electricity . Worldwide there are about 2,500 coal-fired power stations, on average capable of generating a gigawatt each. They generate about a third of the world's electricity , but cause many illnesses and the most early deaths per unit of energy produced, mainly from air pollution . World installed capacity doubled from 2000 to 2023 and increased 2% in 2023. A coal-fired power station

3294-452: Was being considered in China in 2020, but this is very expensive, reduces the energy output and for some plants is not technically feasible. Coal burning power plants kill many thousands of people every year with their emissions of particulates , microscopic air pollutants that enter human lungs and other human organs and induce a variety of adverse medical conditions, including asthma , heart disease , low birth weight and cancers . In

3355-583: Was completed in January 1989. In 2001, PacifiCorp was acquired by Scottish Power . In 2006, PacifiCorp was acquired by Berkshire Hathaway Energy , a division of Berkshire Hathaway , for $ 5.1 billion in cash. In a July 2006 reorganization, Pacific Power's territory in central and eastern Wyoming was merged with the Utah Power territory to form Rocky Mountain Power. In these tables of generation properties owned or partially-owned by PacifiCorp, total capacity

3416-626: Was eventually listed on the New York Stock Exchange and ranked as high as 353 on the Fortune 500 list of the largest American companies. Through its majority interest in NERCO, PacifiCorp was involved in the mining of coal, oil, natural gas, gold, silver, and uranium. PacifiCorp still owned 82% of NERCO in 1993, when it was acquired by the mining giant Rio Tinto Group . In August 1987, PacifiCorp agreed to acquire Utah Power & Light. The merger

3477-545: Was formed in 1910 from the merger of several financially troubled utilities in Oregon and Washington to form the Pacific Power & Light Company . It gradually expanded its reach to include most of Oregon, as well as portions of California, Washington and Wyoming. In 1984, it reorganized itself as a holding company, PacifiCorp, headquartered in Portland with Pacific Power as its main subsidiary. Utah Power and Light (UP&L)

3538-461: Was organized on 6 September 1912 from the merger of four electric companies in Utah, Idaho and Wyoming and was a Salt Lake City subsidiary of a large holding company, Electric Bond and Share Company (EBASCO) of New York. Within four years of its organization, UP&L had purchased twenty-seven other electric companies in the general Utah area, and eventually absorbed more than one hundred thirty. In 1881, one of those companies had made Salt Lake City

3599-744: Was removed in 2023, and the Iron Gate Dam began demolition in May 2024. The final dam was removed in August, 2024. Pacific Power and Light PacifiCorp is an electric power company based in the Lloyd Center Tower in Portland, Oregon with operations in the western United States . PacifiCorp has two business units: Pacific Power , a regulated electric utility with service territory throughout Oregon, northern California, and southeastern Washington headquartered in Portland, Oregon ; and Rocky Mountain Power ,

3660-526: Was spawn from legislation passed in 2016 that called for more renewable energy from the state's utility companies. As of May 1, 2007, Rocky Mountain Power serves approximately 758,000 customers in Utah, 129,000 customers in Idaho, and 67,000 customers in Wyoming. In November 2017, Rocky Mountain Power made a deal with Utah's utility authorities to phase out net metering . The program was paying customers who generated their own electricity with rooftop solar panels

3721-568: Was started in June 2021 to develop technology to enable co-firing a significant amount of ammonia at a large-scale commercial coal-fired plant. However low-carbon hydrogen and ammonia is in demand for sustainable shipping , which unlike electricity generation, has few other clean options. Some power stations are being converted to burn gas, biomass or waste, and conversion to thermal storage will be trialled in 2023. Retrofitting some existing coal-fired power stations with carbon capture and storage

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