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Acordionero Oil and Gas Field
Acordionero is an oil field in San Martín, Cesar, in Colombia's Middle Magdalena Valley basin, discovered in 2013 and operated by Gran Tierra Energy, the company's largest field there.
ACP1000
ACP1000, designated HPR1000 in 2013 and merged into Hualong One, is a Chinese 1,100 MWe pressurized water reactor developed by CNNC and exported to Pakistan.
ACPR1000
The ACPR1000 is a Chinese third-generation 1,000 MW-class pressurized water reactor developed by China General Nuclear Power Group as an enhanced, fully Chinese-owned version of its CPR-1000 design.
Active neutral-point-clamped converter
The active neutral-point-clamped (ANPC) converter is a three-level voltage-source converter topology that replaces the clamping diodes of the NPC converter with active switches, balancing losses among devices.
Active Power (company)
Active Power, Inc. was an Austin, Texas company that manufactured flywheel-based uninterruptible power supplies storing kinetic energy in a spinning rotor, founded in 1992 and sold to Piller in 2016.
Actuator disk model
The actuator disk model represents a wind turbine or propeller rotor as an infinitely thin, permeable disk that imposes a pressure jump on the flow, yielding the Betz limit.
ACWA Power Sirdaryo I power station
The ACWA Power Sirdaryo I power station (also written Sirdarya CCGT) is a 1,500 MW combined cycle gas plant in Shirin, Uzbekistan, built by Saudi developer ACWA Power.
Adanga Oil and Gas Field
The Adanga oil and gas field is an offshore oil field in Nigerian waters offshore Calabar, producing since 1986 and operated by NNPC subsidiary Antan since 2023.
Adanga South Oil and Gas Field
Adanga South is an oil and gas field in the eastern Niger Delta offshore Calabar, Nigeria, within Oil Mining Lease 123, a southern extension of the Adanga field complex.
Adani Electricity Mumbai
Adani Electricity Mumbai Limited (AEML) is an Indian power utility serving about 3.18 million customers in Mumbai, formed in 2018 from Reliance Infrastructure's Mumbai power business.
Adani Energy Solutions
Adani Energy Solutions, formerly Adani Transmission, is an Indian utility company of the Adani Group that builds power transmission networks, distributes electricity, and installs smart meters.
Adani Godda power station
The Adani Godda power station is a 1,600 MW ultra-supercritical coal-fired plant in Godda district, Jharkhand, India, built by Adani Power and exporting electricity to Bangladesh.
Adani Green Energy
Adani Green Energy Limited (AGEL) is an Indian renewable energy company, founded in 2015 and headquartered in Ahmedabad, operating solar and wind plants across India.
Adani New Industries Limited
Adani New Industries Limited is an Indian green hydrogen company and wholly-owned subsidiary of Adani Enterprises, developing an integrated green hydrogen ecosystem centered on a hub at Mundra, Gujarat.
Adani Power
Adani Power Limited is an Adani Group company headquartered in Ahmedabad, and India's largest private thermal power producer, with 17,550 MW of capacity as of 2025 and a 30,670 MW expansion target by 2030.
Adani Total Gas
Adani Total Gas Limited (ATGL) is an Indian city gas distribution company, jointly owned by the Adani family and TotalEnergies, each holding 37.4 percent since 2019.
Adani Wilmar
Adani Wilmar, renamed AWL Agri Business Limited in 2025, is an Indian edible oil and food staples company, formed in 1999 and listed since 2022.
Adaptive protection (power systems)
Adaptive protection is power system protection in which relay settings are adjusted online to match prevailing network conditions, developed since the 1980s for distribution networks.
Adaro Energy
Adaro Energy, formally PT Adaro Energy Indonesia Tbk, was an Indonesian coal holding company in South Kalimantan, whose Envirocoal brand made it the world's sixth-largest coal miner.
Additive engineering in perovskite solar cells
Additive engineering in perovskite solar cells is the addition of small quantities of chemical compounds to control crystallization, passivate defects, and improve power conversion efficiency and long-term operational stability of devices.
Adhi Oil and Gas Field
The Adhi Oil and Gas Field is a producing oil and gas-condensate field in Punjab, Pakistan, about 70 km south of Islamabad, operated by Pakistan Petroleum Limited.
Adiabatic Toroidal Compressor
The Adiabatic Toroidal Compressor (ATC) was a 1972 tokamak at Princeton Plasma Physics Laboratory that demonstrated adiabatic compressional heating and hosted the first neutral-beam heating experiments in a tokamak.
ADITYA (tokamak)
ADITYA (आदित्य, Sanskrit for "the Sun") was India's first indigenously designed and built tokamak, operated at the Institute for Plasma Research in Gandhinagar, Gujarat, from 1989 to 2015.
Aditya Aluminium power station
The Aditya Aluminium power station is a 900 MW captive coal-fired plant at Lapanga in Odisha, India, built to supply Hindalco Industries' aluminum smelter on the same site.
Administered Pricing Mechanism (India)
The Administered Price Mechanism (APM) is India's system of government-set prices, applied to petroleum products from 1975 until its dismantling in 2002 and still applied to natural gas from ONGC and Oil India nomination fields.
ADNOC Drilling
ADNOC Drilling is an Abu Dhabi-based drilling and energy services company founded in 1972 as the drilling arm of ADNOC, the largest drilling company in the Middle East.
ADNOC Gas
ADNOC Gas is an Abu Dhabi natural gas processing and LNG company and subsidiary of ADNOC, publicly listed since 2023, supplying about 60% of UAE gas.
Adria Oil Pipeline
The Adria oil pipeline is a crude oil pipeline from Omišalj Terminal on Croatia's Krk island to refineries across Southeastern and Central Europe, operated by state-owned JANAF.
Adrian Zaccaria
Adrian Zaccaria was an American engineering executive who spent his 41-year career at Bechtel, rising from nuclear planning engineer in 1971 to president, COO, and vice chairman.
Adriatic LNG Terminal
The Adriatic LNG Terminal is an offshore LNG receiving and regasification terminal in the Northern Adriatic Sea, about 15 kilometers off Porto Levante, Italy, operational since 2009.