Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Trigeneration or combined cooling, heat and power (CCHP) refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector. The terms cogeneration and trigeneration can also be applied to the power systems simultaneously generating electricity, heat, and industrial chemicals.
District heating is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heat-only boiler stations, geothermal heating, heat pumps and central solar heating are also used, as well as heat waste from nuclear power electricity generation. District heating plants can provide higher efficiencies and better pollution control than localized boilers. According to some research, district heating with combined heat and power (CHPDH) is the cheapest method of cutting carbon emissions, and has one of the lowest carbon footprints of all fossil generation plants. Fifth generation district heat networks do not use combustion on-site and have zero emissions of CO2 and NO2 on-site; they employ heat transfer which uses electricity which may be generated from renewable energy, or from remote fossil fuelled power stations. A combination of CHP and centralized heat pumps are used in the Stockholm multi energy system. This allows the production of heat through electricity when there is an abundance of intermittent power production and cogeneration of electric power and district heating when the availability of intermittent power production is low.
DTE Energy is a Detroit-based diversified energy company involved in the development and management of energy-related businesses and services in the United States and Canada. Its operating units include an electric utility serving 2.2 million customers and a natural gas utility serving 1.3 million customers in Michigan.
The Capitol Power Plant is a fossil-fuel burning power plant which provides steam and chilled water for the United States Capitol, the Supreme Court, the Library of Congress and 19 other buildings in the Capitol Complex. Located at 25 E St SE in southeast Washington, D.C., it is the only coal-burning power plant in the District of Columbia, though it mostly uses natural gas. The plant has been serving the Capitol since 1910, and is under the administration of the Architect of the Capitol. Though it was originally built to supply the Capitol complex with electricity as well, the plant has not produced electricity for the Capitol since 1952. Electricity generation is now handled by the same power grid and local electrical utility (Pepco) that serves the rest of metropolitan Washington.
The Osborne Power Station is located in Osborne, a northwestern suburb of Adelaide, South Australia.
FortisBC is an electricity and natural gas distribution utility in the Canadian province of British Columbia, a subsidiary of Newfoundland-based Fortis Inc., Canada’s largest private utility company. In March 2011, Terasen Gas, British Columbia's largest natural gas distributor, was renamed FortisBC Energy Inc., as both companies are owned by Fortis Inc.
South Humber Bank Power Station is a 1,365 MW gas-fired power station on South Marsh Road at Stallingborough in North East Lincolnshire north of Healing and the A180 near the South Marsh Road Industrial Estate. It is around two miles east of Immingham, and employs 64 people. The site of SHBPS is around 500 metres by 400 metres in area. It is next door to the Synthomer plant.
The Midland Cogeneration Venture (MCV) is a natural gas-fired electrical and steam co-generation plant in Midland, Michigan owned by Midland Cogeneration Venture Limited Partnership. When it began operation in 1991, it was the largest gas-fired steam recovery power plant in the world.
Derwent Power Station is a 214MWe gas-fired power station on Holme Lane near Spondon in Derby, England. It is built on the site of the former Spondon Power Station
Thor Cogeneration is a planned, but undeveloped, gas-fired cogeneration plant, which was to be built on Seal Sands near Billingham, in County Durham, North East England.
Southdown Power Station was a natural gas-fired combined cycle gas turbine cogeneration power station in Southdown, a suburb in southern Auckland City, New Zealand. When operational, it was New Zealand's northernmost power station with a capacity exceeding 50 MW.
Cory Cogeneration Station is a natural gas-fired station owned by SaskPower and located near Saskatoon, Saskatchewan, Canada. The plant operates at 260 MW in a conventional generation mode and at 228 MW in a cogeneration mode. Steam from the plant is used to supply the Potash Corp Cory Mine.
Muskeg River Mine (MRM) Cogeneration Station is a natural gas-fired station owned by Heartland Generation, located 75 km north of Fort McMurray and is part of the Albian Sands Project.
Kwinana Cogeneration Plant is located 40 kilometres south of Perth, Western Australia. It provides steam and electrical power to the BP Australia Kwinana Oil Refinery and electricity only to Synergy, the State owned generator/retailer.
Thorold Co-generation Plant is a natural gas-fired station owned by Northland Power, brought into operation on March 28, 2010. The plant also supplies steam to the nearby AbitibiBowater paper mill. Power is produced under contract to the Ontario Power Authority.
Island Generating Station is a natural gas-fired station owned by Capital Power Corporation, in Campbell River, British Columbia, Canada. The plant operates as a co-generation facility under a 20-year power purchase agreement with BC Hydro while steam is supplied to Elk Falls Mill.
GTAA Cogeneration Plant is a combined cycle natural gas and steam power station owned by the Greater Toronto Airports Authority, in Mississauga, Ontario. The plant is primarily used to supply steam and power to the Toronto Pearson International Airport with surplus power sold onto the Ontario grid. The plant is located across from the airport at Elmbank Road and Network Road next to the Central Utilities Plant.
Joffre Cogeneration Plant is a natural gas power station owned by Heartland Generation Ltd. (40%), Capital Power (40%) and Nova Chemicals (20%). The plant is located in Joffre, Alberta, Canada. The plant is primarily used to supply steam to a Nova Chemicals processing plant and power onto the Alberta Grid.
Scotford Cogeneration Plant is a natural gas power station owned by Heartland Generation. The plant is located in Strathcona County, just northeast of Fort Saskatchewan, Alberta, Canada at the Scotford Upgrader site. The plant is primarily used to supply steam and electricity to the Athabasca Oilsands Upgrader. The Upgrader utilizes two-thirds of the electricity generated with the balance being sold to the Alberta Interconnected Grid.
