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Varadero oil field
Varadero is an oil field in block 28/9a of the UK Central North Sea, about 170 km southeast of Aberdeen, discovered in 2011 and producing through the BW Catcher FPSO since January 2018.
Varavi Gas Field
The Varavi Gas Field is an operating onshore natural gas field in Fars province, southern Iran, the smallest of the four Parsian Gas fields, discovered in 1975.
Variable autotransformer
A variable autotransformer, commonly called a Variac, is a transformer with a sliding brush that adjusts AC output voltage continuously from zero to above the input.
Variable refrigerant flow
Variable refrigerant flow (VRF), also called variable refrigerant volume, is an HVAC technology in which outdoor units with variable-speed compressors serve multiple indoor units over shared refrigerant piping.
Variable-speed wind turbine
A variable-speed wind turbine is a wind turbine whose rotor speed continuously adjusts to the wind for near-maximum efficiency, using power electronics; the DFIG and fully rated converter designs dominate.
Városföld-Slobodnica Gas Pipeline
The Városföld-Slobodnica Gas Pipeline is a 293 km bidirectional natural gas interconnector linking Hungary and Croatia, commissioned in 2011 as the first direct connection between them.
Varta
Varta (VARTA AG) is a German battery manufacturer headquartered in Ellwangen, producing microbatteries, coin cells, and energy storage systems; it filed for insolvency in 2026.
Vasai Oil and Gas Field
Vasai Oil and Gas Field, also known as the Bassein gas field, is an offshore Indian oil and gas field in the Arabian Sea operated by ONGC.
Vasconia-CIB Oil Pipeline
The Vasconia-CIB Oil Pipeline, known locally as the Oleoducto Vasconia-CIB, is a 172 km crude oil pipeline in Colombia running from Vasconia, Boyacá to Barrancabermeja, Santander.
Vat-Yeganskoye Oil Field
Vat-Yeganskoye Oil Field (Ватьеганское месторождение) is a large oil field in the Khanty-Mansi Autonomous Okrug of Western Siberia, Russia, operated by LUKOIL-West Siberia.
Vatinskoe Oil Field
Vatinskoe Oil Field (Ватинское месторождение) is a large onshore oil field in Western Siberia, Russia, about 50 km from Nizhnevartovsk, discovered in 1963 and operated by Slavneft-Megionneftegaz.
Vattenfall
Vattenfall is a Swedish state-owned energy company founded in 1909, one of Europe's largest electricity and heat producers with about 21,000 employees across Sweden, Germany, and the Netherlands.
Vault transformer
A vault transformer is a liquid-immersed, three-phase distribution transformer installed in underground vaults, where it steps a medium-voltage feed down to 600 V or less to supply secondary networks through network protectors.
VDE-AR-N 4105
VDE-AR-N 4105 is the German application rule, published by VDE FNN, setting minimum technical requirements for connecting generating plants and storage systems to the low-voltage network.
Vector Pipeline
Vector Pipeline is a 348-mile bidirectional natural gas pipeline from Joliet, Illinois, to the Dawn storage hub in Ontario, owned by Enbridge and DT Midstream since 2000.
Vega Oil and Gas Field
Vega is a producing gas and condensate field in the Norwegian North Sea, 30 kilometers west of the Gjøa field. Proven in 1980, it began production in 2010.
Vega Pleyade Oil and Gas Field
Vega Pleyade (Vega Pléyade) is an offshore gas and condensate field off Tierra del Fuego, Argentina, operated by TotalEnergies, brought onstream in 2016 and home to the world's southernmost offshore production platform.
Vehicle-integrated photovoltaics
Vehicle-integrated photovoltaics (VIPV) are photovoltaic modules embedded in vehicle body surfaces such as the roof and hood, generating electricity on board to support propulsion or reduce grid charging.
Vehicle-to-building
Vehicle-to-building (V2B) is a bidirectional charging application in which an electric vehicle supplies power to the building it is parked at, reducing electricity costs, supporting demand response, and providing backup power during grid outages.
Vehicle-to-home
Vehicle-to-home (V2H) is bidirectional charging in which an electric vehicle's battery supplies AC power to a house, letting the car serve as home energy storage; a 100-kWh battery can power a home for days.
Vehicle-to-load
Vehicle-to-load (V2L) is a bidirectional charging capability of electric vehicles that supplies AC power from the traction battery to tools and appliances through an outlet or charging-port adapter.
Velero Oil and Gas Field
Velero Oil and Gas Field is an operating, onshore non-associated natural gas field in the Burgos basin in Tamaulipas, northeastern Mexico, operated by Pemex and discovered in 1977.
Velocys
Velocys is a sustainable aviation fuel technology company based in Oxford, England and Houston, Texas, whose microchannel Fischer-Tropsch reactors convert waste, biomass, or natural gas into low-carbon fuels.
Vensys
Vensys is a German wind turbine manufacturer based in Neunkirchen, Saarland, founded in 2000 as a university spin-off, that builds gearless turbines with permanent-magnet direct-drive generators.
Ventanas power station
Ventanas power station (Central Termoeléctrica Ventanas) is a coal-fired power station in Puchuncaví, Chile, operating since 1964; its two older units were retired in 2020 and 2023.
Venture Global
Venture Global, Inc. is an American liquefied natural gas producer and exporter headquartered in Arlington, Virginia, whose Calcasieu Pass plant began producing LNG in 2022.
Verbio Vereinigte Bioenergie
Verbio Vereinigte Bioenergie, known as Verbio SE since 2023, is a German bioenergy company producing biodiesel, bioethanol, and biomethane in biorefineries across Europe, North America, and Asia.
Verdant Power
Verdant Power is a New York-based tidal energy company, founded in 2000, that develops three-bladed turbines and is known for the Roosevelt Island Tidal Energy Project.
Vereinigtes Schleenhain Coal Mine
The Vereinigtes Schleenhain coal mine (Tagebau Vereinigtes Schleenhain) is an open-pit lignite mine south of Leipzig in Saxony, Germany, operated by MIBRAG and supplying the Lippendorf power station until 2035.
Veren Inc.
Veren Inc. was a Calgary-based Canadian oil and gas producer formed in 2024 when Crescent Point Energy changed its name, acquired by Whitecap Resources in May 2025.