9,935 articles
Stranded asset
A stranded asset is an asset that suffers an unanticipated or premature write-down or devaluation, chiefly fossil fuel reserves, power plants, and infrastructure that lose value under climate policy and shifting demand.
Stranded assets
Stranded assets are assets that suffer unanticipated or premature write-downs or devaluations, chiefly fossil fuel reserves and infrastructure that climate policy or technology change leaves unusable.
Strategic Petroleum Reserve (India)
The Strategic Petroleum Reserve is India's government-held underground crude oil storage program, run by ISPRL, with 5.33 MMT of Phase I capacity covering about 9.5 days of crude requirement.
Strathcona Resources
Strathcona Resources is a Calgary-based Canadian heavy oil producer formed in 2020 by Waterous Energy Fund, which became a public company in October 2023 through acquiring Pipestone Energy.
Stratheden Gas Field
The Stratheden Gas Field is an Arrow Energy coal seam gas field in Queensland's Surat Basin, about 20 km north-west of Dalby, with 285 PJ of reserves in 2013.
Straw-bale construction
Straw-bale construction is a building method using stacked straw bales as load-bearing walls or frame insulation, developed in Nebraska from about 1900 to 1940 and revived since the 1970s.
Stray current corrosion
Stray current corrosion is corrosion of buried or immersed metal structures, chiefly pipelines, caused by external electric currents from DC rail systems and cathodic protection.
Stray voltage
Stray voltage is a small voltage between two surfaces an animal touches at once, such as a water trough and barn floor, giving dairy cows a mild shock.
Stress grading
Stress grading, also called field grading or electric field grading, controls the electric field distribution within or around a high-voltage device, most commonly in the terminations and joints of power cables.
String inverter
A string inverter is a device that converts the direct current of one series-wired string of solar panels into alternating current, the standard choice for homes.
StromVKG (Kraftwerksleistungsgesetz)
StromVKG, formally the Kraftwerksleistungsgesetz, is a German federal law enacted in July 2026 that introduces Germany's first capacity market, auctioning 12 GW of secured capacity from power plants, storage, and controllable loads for 2031.
Structural battery
A structural battery is a multifunctional material that stores energy like a lithium-ion battery while carrying mechanical load, replacing added battery mass in electric vehicles, aircraft, and drones.
Structural insulated panel
A structural insulated panel (SIP) is a prefabricated building panel with a rigid foam core between two facings, typically OSB, replacing framing, sheathing, and insulation with one component.
Structural trap
A structural trap is a hydrocarbon trap where folding, faulting, or upward salt movement stops migrating oil or gas, and it holds most of the world's reserves.
Stuart Generating Station
Stuart Generating Station, also called J.M. Stuart Station, was a four-unit, coal-fired power station in Aberdeen, Adams County, Ohio, on the Ohio River, owned by Dayton Power & Light and retired in 2018.
Sture oil terminal
The Sture oil terminal (Stureterminalen) is an Equinor-operated petroleum terminal in Øygarden, Norway, northwest of Bergen, which opened in 1988 and exports Oseberg Blend and Grane Blend crude oil.
Sturgeon Refinery
The Sturgeon Refinery is a bitumen refinery in Sturgeon County, Alberta, northeast of Edmonton, the first built in Canada since the 1980s, producing diesel from 2017.
Stybarrow oil field
Stybarrow is an offshore oil field in the Exmouth Sub-basin off Western Australia, discovered in 2003 and producing from 2007 to 2015 through the FPSO Stybarrow Venture.
Sual power station
The Sual power station is a coal-fired power plant with two 647 MW units in Sual, Pangasinan, on Luzon's Lingayen Gulf coast, in commercial operation since October 1999.
Suancigou Coal Mine
Suancigou Coal Mine (酸刺沟煤矿) is a large underground thermal coal mine in the Jungar Coalfield in Jungar Banner, Ordos, Inner Mongolia, China, begun in 2008 and majority-owned by Inner Mongolia Yitai Coal.
Subang Gas Field
The Subang Gas Field is an operating onshore natural gas field in Subang Regency, West Java, Indonesia, owned by PT Pertamina EP and producing dry gas with high carbon dioxide content since 2002.
Subba Oil Field
Subba Oil Field (صبة, also written Saba or Suba) is an oil field in Dhi Qar province, southern Iraq, with reserves estimated at over a billion barrels.
Submarine power cable
A submarine power cable is an insulated cable laid on or buried in the seabed to transmit power across water, first installed in Germany in 1811.
Submerged combustion vaporizer
A submerged combustion vaporizer (SCV) is a fired heat exchanger that regasifies liquefied natural gas by burning fuel gas in a burner immersed in a water bath.
Subsea 7
Subsea 7 is a Luxembourg-domiciled engineering, construction, and services contractor to the offshore energy industry, created in 2002 and listed on the Oslo Børs under ticker SUBC.
Subsea production tree
A subsea production tree, or wet Christmas tree, is an assembly of valves on a seabed wellhead that controls flow from a subsea oil or gas well.
Subsea wellhead
A subsea wellhead is a set of pressure-containing housings, hangers, and seals installed on the seabed, suspending casing and supporting the blowout preventer during drilling.
Substation
A substation is a node in the electrical grid where voltage is transformed between levels and circuits are switched, connecting generation, transmission, and distribution; the US grid has over 55,000 transmission substations.
Substation automation
Substation automation applies microprocessor-based intelligent electronic devices, communication networks, and software to monitor, control, and protect power substation equipment, replacing electromechanical relays and governed by the IEC 61850 standard.
Subsynchronous resonance
Subsynchronous resonance (SSR) is a power system condition where a series-compensated transmission line exchanges energy with a generator below rated frequency, potentially damaging the shaft.