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Drake Landing Solar Community
Drake Landing Solar Community is a 52-home subdivision in Okotoks, Alberta, heated by solar energy stored underground in boreholes, supplying over 90% of space heating from 2007 until 2024.
Draugen Oil and Gas Field
Draugen is an oil field in the Norwegian Sea off Norway, discovered in 1984 and the first Norwegian field north of the 62nd parallel, producing since 1993.
Drax Group
Drax Group is a British renewable energy company that owns Drax Power Station in North Yorkshire, which it describes as the UK's largest renewable power station.
Drax power station
Drax power station is a biomass-fired power station near Selby in North Yorkshire, England, operated by Drax Group and formerly the UK's largest coal-fired plant.
Dresden nuclear power plant
Dresden nuclear power plant is a nuclear plant in Morris, Illinois, whose Unit 1 was the first full-scale, privately financed nuclear power plant in the United States.
Driftwood LNG
Driftwood LNG is a liquefied natural gas export terminal under construction near Carlyss, Louisiana. Developed by Tellurian, it was acquired by Woodside Energy in 2024 and renamed Woodside Louisiana LNG.
Drigg (low-level waste repository)
Drigg is a site on the West Cumbrian coast that holds the United Kingdom's national repository for solid low-level radioactive waste, receiving waste from across the country since 1959.
Drill stem test
A drill stem test (DST) is a well test that isolates a formation with packers so its pressure, fluids, and productivity can be measured before a well is completed.
Drilling fluid
Drilling fluid, also called drilling mud, is the circulating fluid used in rotary drilling of wells to clean the hole, carry cuttings to the surface, and counterbalance formation pressure.
Drilling rig
A drilling rig, or drill rig, is the machine used to drill a wellbore for oil, gas, or geothermal resources, combining hoisting, rotating, and circulating systems on land or offshore.
Drilling riser
A drilling riser is the large-diameter pipe connecting a floating drilling vessel to the subsea blowout preventer on the seafloor, returning drilling mud to the surface.
Drillship
A drillship is a maritime vessel modified with a drilling rig and station-keeping equipment, held on location by anchors, thrusters, or both, for drilling in deep water.
Driveco
Driveco is a Paris-based electric-vehicle charging company founded in 2010 by Corsica Sole; it runs one of France's largest public charging networks and manufactures 22 kW AC chargers.
Drmno Coal Mine
Drmno Coal Mine (Површински коп Дрмно) is an open-pit lignite mine in the Kostolac Coal Basin in eastern Serbia, opened in 1983 and supplying the Kostolac power plants.
Droop control
Droop control is a decentralized control method in which parallel-connected inverters and generators share active and reactive power from local measurements alone, with no communication links, making it the most implemented approach for islanded microgrids.
Drop-in biofuel
A drop-in biofuel is a bio-derived liquid fuel chemically interchangeable with the petroleum fuel it replaces, so it blends into existing engines and infrastructure without modification, chiefly as aviation fuel.
Drummond Company
Drummond Company is a privately held coal mining and natural resources company founded in Alabama in 1935, best known as Colombia's largest coal producer and exporter.
Druzhba Oil Pipeline
The Druzhba oil pipeline (Дружба, "Friendship") is one of the world's largest crude oil pipelines, carrying Russian oil from the Volga-Ural region through Belarus and Ukraine to Central Europe since 1963.
Druzhnoye Oil and Gas Field
Druzhnoye (Дружное) field is an oil field in the Surgut district of West Siberia, Russia, discovered in 1983 and developed since 1985 by LUKOIL-Western Siberia.
Dry anaerobic digestion
Dry anaerobic digestion, or high-solids anaerobic digestion, breaks down organic waste such as food waste and manure without oxygen at 15–40% solids, producing methane-rich biogas.
Dry cask storage
Dry cask storage stores spent nuclear fuel in sealed steel cylinders surrounded by concrete for radiation shielding, first licensed by the NRC at Virginia's Surry plant in 1986.
Dry cell
A dry cell is an electrochemical battery with a paste electrolyte instead of free liquid, making it spill-proof; alkaline and carbon-zinc cells power flashlights and remotes.
Dry electrode processing
Dry electrode processing is a solvent-free method of making lithium-ion battery electrodes from dry powders instead of slurry coating, eliminating toxic solvents like NMP and cutting drying costs.
Dry milling (ethanol production)
Dry milling, also called the dry-grind process, is the dominant method of producing fuel ethanol from corn in the United States, accounting for about 90% of U.S. ethanol output.
Dry reforming of methane
Dry reforming of methane (DRM) is a catalytic process converting methane and carbon dioxide into synthesis gas, a hydrogen and carbon monoxide mixture usable for fuels.
Dry-type transformer
A dry-type transformer is a power or distribution transformer insulated and cooled by air and solid materials like epoxy resin instead of oil, favored indoors for fire safety.
DT Midstream
DT Midstream is an American natural gas midstream company headquartered in Detroit, Michigan, spun off from DTE Energy in July 2021 and trading on the NYSE as DTM.
DTE Electric
DTE Electric is an investor-owned electric utility serving roughly 2.3 million customers in southeastern Michigan, including Detroit and Ann Arbor, as a subsidiary of DTE Energy.
DTE Gas
DTE Gas, long known as Michigan Consolidated Gas Company (MichCon), is a regulated natural gas utility serving about 1.4 million customers across Michigan as the gas segment of DTE Energy.
DTEK Pavlogradugol
DTEK Pavlogradugol, also rendered DTEK Pavlohradvuhillia, is a Ukrainian coal-mining company based in Pavlohrad that mines the Western Donbas and is Ukraine's largest coal enterprise.