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Cusiana Field
Cusiana Field is a giant oil and gas field in the Llanos Foothills of Casanare, Colombia, discovered in 1988 and once producing over 37% of the country's oil.
Cusiana Norte Gas Field
Cusiana Norte is an operating conventional natural gas field near Aguazul in Casanare, Colombia, adjacent to the larger Cusiana field and ranking among Colombia's top gas producers.
Cusiana Oil and Gas Field
Cusiana is a giant oil and gas field in the Llanos foothills of Casanare, eastern Colombia, discovered by BP in 1991 and now operated by Ecopetrol.
Cusp confinement
Cusp confinement is a magnetic fusion confinement scheme where field lines intersect the walls, so particles escape through cusps; plasmas are nonetheless MHD-stable, even at high beta.
Customcells
Customcells is a German developer and manufacturer of customized high-performance lithium-ion battery cells, founded in 2012 as a Fraunhofer spinout in Itzehoe, serving aviation, defense, and motorsport customers.
Customer Choice (Michigan)
Customer Choice is Michigan's program letting customers of its four largest gas utilities buy gas from a licensed alternative supplier, with the utility still delivering it.
Cuyabeno Oil and Gas Field
The Cuyabeno Oil and Gas Field is an operating onshore oil field in Block 58 of Ecuador's Oriente basin, in Sucumbíos province, discovered in 1972 and wholly owned by EP Petroecuador.
CVR Energy
CVR Energy is a Sugar Land, Texas holding company trading on the NYSE as CVI, engaged in petroleum refining and nitrogen fertilizer manufacturing through CVR Refining and CVR Partners.
Cyclic carbonate electrolytes
Cyclic carbonate electrolytes are lithium-ion battery electrolytes built on ethylene carbonate and propylene carbonate, whose ring structures dissolve salt and form the protective anode film.
Cyclic steam stimulation
Cyclic steam stimulation, also called huff-and-puff or steam soak, is an enhanced oil recovery method in which steam is injected into a well, the well soaks, and heated oil is produced.
Cygnus Oil and Gas Field
Cygnus is a dry natural gas field in the UK Southern North Sea, the largest producing gas field in the United Kingdom, operated by Ithaca Energy since first gas in December 2016.
Cylib
Cylib is a German lithium-ion battery recycling startup founded in 2022 in Aachen as a spin-off from RWTH Aachen University by Lilian Schwich, Paul Sabarny, and Gideon Schwich.
CZTS solar cell
A CZTS solar cell is a thin-film photovoltaic device with a kesterite copper zinc tin sulfide absorber built from earth-abundant, non-toxic elements in the CIGS architecture.
Czyste Powietrze
Czyste Powietrze (Clean Air) is Poland's national subsidy program for replacing old solid-fuel boilers and improving energy efficiency of single-family homes, run by the government since 2018.
D battery
A D battery, also called a D cell or LR20, is a standard-size dry cell battery, 34.2 mm wide and 61.5 mm tall, used in flashlights, radios, and large toys.
D-1 oil field (India)
The D-1 oil field is an offshore field in the Arabian Sea about 200 km southwest of Mumbai, discovered in 1976 and operated by India's ONGC.
d.light
d.light is an off-grid solar energy company founded by Sam Goldman and Ned Tozun at Stanford in 2007, selling solar lanterns and home systems on pay-as-you-go plans in Africa and India.
Daandine Gas Field
The Daandine Gas Field is a coal seam gas field in the Surat Basin near Dalby, Queensland, owned by Arrow Energy, with commercial gas production beginning in September 2006.
Daba power station
Daba power station (宁夏大坝发电厂) is a 3,840 MW, eight-unit coal-fired power station in Qingtongxia, Ningxia, China, built between 1988 and 2019 and operated by China Energy.
Dabei Oil and Gas Field
Dabei Oil and Gas Field (大北) is an ultra-deep tight sandstone gas field in the Tarim Basin, Xinjiang, China, operated by PetroChina and feeding the West-East Gas Pipeline.
Dabhol LNG Terminal
The Dabhol LNG Terminal is a 5.0 MMTPA LNG regasification terminal at Dabhol, Maharashtra, India, begun under Enron in the 1990s and now operated by GAIL's Konkan LNG Limited.
Dabhol Power Station
The Dabhol Power Station is a gas-fired combined cycle power station with an LNG terminal at Dabhol, Maharashtra, India, built in the 1990s by a joint venture led by Enron and operated today by RGPPL.
Dabhol-Bangalore Gas Pipeline
The Dabhol-Bangalore Gas Pipeline is a natural gas pipeline in India, built by GAIL and commissioned in 2013 to carry LNG from Dabhol in Maharashtra to Bengaluru.
Dabieshan power station
Dabieshan power station (大别山电厂) is a coal-fired power station with at least 2,600 MW in Macheng, Huanggang, Hubei, China, whose first units entered operation in 2008 and whose 1,000 MW expansion began construction in 2025.
Dabu power station
Dabu power station (粤电大埔发电厂), also known as Yudean Dabu power station, is an operating coal-fired power station in Sanhe Town, Dabu County, Meizhou, Guangdong, China, with at least 3,200 MW.
Dachaoshan Dam
The Dachaoshan Dam (大朝山水电站) is a 1,350 MW hydropower station on the Lancang River in Yunnan, China, downstream of the Manwan Dam, with its first generator connected in December 2001.
Dación Oil and Gas Field
Dación Oil and Gas Field is an onshore conventional-heavy oil field in the Oficina trend of eastern Venezuela, discovered in 1940, producing since 1944, and operated by PDVSA since 2007.
Dadri-Bawana-Nangal Gas Pipeline
The Dadri-Bawana-Nangal Gas Pipeline (DBNPL) is a natural gas pipeline in northern India, owned and operated by GAIL, running from Dadri in Uttar Pradesh to Nangal in Punjab.
Dadri-Panipat Gas Pipeline
The Dadri-Panipat Gas Pipeline is a 132-km natural gas pipeline in northern India, owned by Indian Oil Corporation and commissioned in 2010 to feed the Panipat Refinery.
Dadu River
The Dadu River (大渡河) is a large river in southwestern China and the largest tributary of the Minjiang River, joining it at Leshan in Sichuan.