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Grids and transmission

901 articles

En+ Group

En+ Group is a Russian vertically integrated producer of low-carbon aluminum and hydropower, founded in 2002, that controls RUSAL and is Russia's largest independent power producer by installed capacity.

Endeavour Energy

Endeavour Energy is an Australian electricity distribution company in New South Wales, serving about 2.8 million people across Sydney's Greater West, the Blue Mountains, the Illawarra, and the South Coast.

Endesa

Endesa, S.A. is a Spanish electric utility founded in 1944 that generates, distributes, and sells electricity and gas in Spain and Portugal, majority-owned by the Italian group Enel.

ENEA (Polish company)

Enea S.A., stylized ENEA, is a Polish state-controlled energy group created in 2003 and headquartered in Poznań, one of Poland's largest power companies, majority-owned by the State Treasury.

Enedis

Enedis, created in 2008 as ERDF and renamed in 2016, is an EDF subsidiary operating the public electricity distribution network across about 95% of mainland France.

Enel Chile

Enel Chile is a publicly held Chilean electricity company, created in 2016 from the division of Enersis S.A., which generates power through subsidiaries and distributes electricity to about 2.2 million customers in Santiago.

Energa

Energa is a Polish state-controlled energy group headquartered in Gdańsk that generates, distributes, and sells electricity, serving about 3.4 million customers; Orlen holds 80.01% since 2020.

Energetický a průmyslový holding

Energetický a průmyslový holding (EPH) is a Prague-based Czech energy group founded in 2009 and controlled by Daniel Křetínský, with power, heat, and gas operations across Central and Western Europe.

Energinet

Energinet is the Danish transmission system operator, an independent public enterprise created in 2005 that owns and runs Denmark's electricity and gas grids and their interconnections.

Energy Harbor

Energy Harbor Corp. was an independent, privately held energy producer and retailer headquartered in Akron, Ohio, created in 2020 when FirstEnergy Solutions emerged from bankruptcy; Vistra acquired it in 2024.

Energy Northwest

Energy Northwest, formerly the Washington Public Power Supply System, is a Washington joint operating agency formed in 1957 that generates carbon-free electricity at cost for member utilities.

Enexis

Enexis is a Dutch regional grid operator that builds and maintains electricity and gas networks serving three million customers in Groningen, Drenthe, Overijssel, Noord-Brabant, and Limburg.

ENGIE Energía Perú

ENGIE Energía Perú is a Peruvian electricity generation and transmission company, one of Peru's largest private power producers with about 2,694 MW of installed capacity.

Engineering Recommendation G99

Engineering Recommendation G99, also known as EREC G99, is an Energy Networks Association standard governing connections of solar, wind, and battery generation to Great Britain's distribution networks.

ENKA İnşaat ve Sanayi

ENKA İnşaat ve Sanayi is a Turkish construction and energy conglomerate founded in Istanbul in 1957 and Türkiye's largest construction company, with 5,000 MW of gas-fired power capacity.

ENMAX

ENMAX Corporation is a Canadian electricity utility holding company, wholly owned by the City of Calgary since 1998, operating regulated wires in Calgary and Maine, plus generation and retail.

Entergy

Entergy is a New Orleans-based Fortune 500 electric utility holding company that generates, transmits, and distributes power to more than 3 million customers in four Gulf South states.

Entergy Arkansas

Entergy Arkansas is a regulated electric utility, a subsidiary of Entergy Corporation, that serves about 738,000 customers in 63 Arkansas counties, tracing to Arkansas Power and Light.

Entergy Louisiana

Entergy Louisiana is an electric and natural gas utility subsidiary of Entergy Corporation, serving about 1.1 million customers in 58 of Louisiana's 64 parishes plus gas customers in Baton Rouge.

Entergy Mississippi

Entergy Mississippi, LLC is an investor-owned electric utility, founded in 1923, serving about 459,000 customers in 45 Mississippi counties as a subsidiary of Entergy Corporation.

Entergy New Orleans

Entergy New Orleans is an electric utility and Entergy Corporation subsidiary serving about 209,000 customers in New Orleans, Louisiana, regulated by the City Council rather than the state.

Entergy Texas

Entergy Texas, Inc. is a regulated electric utility subsidiary of Entergy Corporation serving about 538,000 customers across 27 counties in eastern and southeastern Texas from headquarters in Beaumont.

ENTSO-E

ENTSO-E, the European Network of Transmission System Operators for Electricity, is the Brussels-based association of 40 electricity TSOs from 36 countries, created under EU law in 2009.

EPB (Chattanooga)

EPB, formally the Electric Power Board of Chattanooga, is a municipally owned utility providing electric power and fiber internet, known as America's first "Gig City."

EPCOR

EPCOR is a Canadian utility company, created by the City of Edmonton in 1995, that builds and operates electricity, gas, and water networks across Canada and the United States.

Equipotential bonding

Equipotential bonding is the electrical interconnection of conductive parts of an installation to the earthing system so no dangerous voltage difference appears between touchable surfaces during faults.

Equivalent salt deposit density

Equivalent salt deposit density (ESDD) is an insulator pollution measure: the sodium chloride mass giving the same conductivity as the deposit, per unit surface area, in mg/cm².

Eren Holding

Eren Holding is a Turkish family-owned conglomerate headquartered in Istanbul, created in 1997 and employing about 14,000 people, whose ZETES coal plant in Zonguldak supplies about 6% of Türkiye's electricity.

Erroll Brown Davis Jr.

Erroll Brown Davis Jr. was an American electrical engineer and executive who led Alliant Energy and served as the first African American chancellor of the University System of Georgia.

Essar Energy

Essar Energy is the energy arm of India's Essar Group, owner of the Stanlow refinery in Cheshire, England, which supplies about 16% of UK road transport fuels.