901 articles
GenOn Holdings
GenOn Holdings is an American independent power producer that owns generating plants and sells wholesale electricity, formed in December 2018 when GenOn Energy emerged from Chapter 11 bankruptcy.
George A. Maneatis
George A. Maneatis was a utility executive who served as president of Pacific Gas and Electric Company and was elected to the National Academy of Engineering in 1988.
George F. Mechlin
George F. Mechlin was an American engineer who led Westinghouse Electric's Research and Development Laboratories from 1973 to 1987, after joining the company in 1949.
Georgia Power
Georgia Power is an investor-owned electric utility headquartered in Atlanta, the largest subsidiary of the Southern Company, serving about 2.8 million customers across 155 of Georgia's 159 counties.
Gezhouba converter station
Gezhouba converter station (葛洲坝换流站) near Yichang, Hubei, is the sending-end rectifier station of China's first long-distance HVDC link, a ±500 kV bipolar scheme carrying 1,200 MW about 1,045 km to Shanghai.
Glass insulator
A glass insulator is a glass component that electrically isolates and mechanically supports the conductors of overhead telegraph, telephone, and power lines, usually in cap-and-pin disc form.
Global Power Synergy
Global Power Synergy (GPSC) is a Thai power and utilities company founded in 2013 by amalgamating PTT Utility and Independent Power (Thailand) as PTT Group's power flagship.
GMR Power and Urban Infra
GMR Power and Urban Infra (GPUIL) is a listed Indian infrastructure company of the GMR Group, demerged from GMR Infrastructure in 2021, that runs power plants, highways, and smart metering.
Golmud converter station
Golmud converter station, also known as the Chaidam converter station, is the sending-end HVDC station near Golmud, Qinghai, that first connected the Tibet grid to China's network in 2011.
Gordon van Welie
Gordon van Welie is a South African–born electrical engineer who served 25 years as president and CEO of ISO New England, the grid operator for six states.
Grand River Dam Authority
The Grand River Dam Authority (GRDA) is an Oklahoma state agency created in 1935 that generates and sells electricity and manages the Grand and Illinois Rivers.
Graybar
Graybar Electric Company is an American employee-owned distributor of electrical, industrial, automation, and connectivity products, headquartered in St. Louis, Missouri, and one of North America's largest electrical distributors.
Great River Energy
Great River Energy is a not-for-profit generation and transmission electric cooperative headquartered in Maple Grove, Minnesota, formed in 1999 by merger and supplying wholesale power to member-owned distribution cooperatives.
Gregory S. Vassell
Gregory S. Vassell (1921–2016) was an American power systems engineer who planned American Electric Power's 765-kV transmission network and joined the National Academy of Engineering in 1980.
Grid Development Plan (Germany)
The Grid Development Plan (Netzentwicklungsplan Strom, NEP) is Germany's national plan for optimizing and expanding its extra-high voltage transmission grid, drawn up by the four transmission system operators.
Grid frequency
Grid frequency is the rate at which alternating current in a power system oscillates, 60 Hz in North America and 50 Hz in most of the world.
Ground and neutral
Ground and neutral are two distinct conductors in electrical wiring: the neutral carries current back to the source, while the ground provides a safe fault-current path.
Ground fault
A ground fault is an unintended electrical connection between an energized conductor and ground, letting current escape its normal path, sometimes through a person, and can start fires in solar arrays.
Grupo Albanesi
Grupo Albanesi is an Argentine business group founded in 1929 that generates electric power and trades natural gas, operating ten thermal plants in Argentina and Peru.
Guangdong Baolihua New Energy Stock
Guangdong Baolihua New Energy Stock, also known as Baolihua New Energy, is a private Chinese power generation and financial investment company founded in 1997 and based in Meizhou, Guangdong.
Guangdong Electric Power Development
Guangdong Electric Power Development, known as 粤电力A or GED, is a Chinese power generation company listed in Shenzhen since 1993 and the largest listed electricity producer in Guangdong province.
Guangdong Golden Horse Tourism Group Stock
Guangdong Golden Horse Tourism Group Stock (广东金马集团) was a Chinese company on the Shenzhen Stock Exchange, restructured in 2011 from tourism into coal mining and power generation.
Guangdong Hanjian Holding
Guangdong Hanjian Holding (广东韩建控股) is a privately held Chinese holding company created in 2015 and controlled by Zhu Yihang, who owns a 99 percent stake.
Guangdong Hengjian Investment Holding
Guangdong Hengjian Investment Holding, known as Hengjian Holding, is Guangdong Province's wholly state-owned investment company, founded in 2006 and holding stakes in Guangdong Energy Group and China Southern Power Grid.
Guangdong Power Grid
Guangdong Power Grid (广东电网) is the state-owned company operating the transmission and distribution network of Guangdong, China, as a subsidiary of China Southern Power Grid.
Guangxi Guiguan Electric Power
Guangxi Guiguan Electric Power Co., Ltd. (广西桂冠电力股份有限公司), known as Guiguan Power, is a Chinese power generation company controlled by China Datang and listed in Shanghai since 2000.
Guangxi Zhuang Autonomous Region Baise Electric Power
Electric power in Baise, a prefecture-level city in western Guangxi, China, comes from overlapping grids: China Southern Power Grid's main grid plus several municipal state-owned local utilities.
Guangzhou Development Group
Guangzhou Development Group (广州发展集团) is a state-controlled integrated energy company based in Guangzhou, China, established in 1997 and listed in Shanghai, operating power generation, city gas, and coal logistics.
Guangzhou Hengyun Enterprises Holdings
Guangzhou Hengyun Enterprises Holdings Ltd is a state-backed power generation and heat-supply company in Guangzhou, China, founded in 1987 and listed in Shenzhen since 1994.
Guizhou Wujiang Energy Group
Guizhou Wujiang Energy Group was a provincial state-owned energy holding company in Guizhou Province, China, with interests in shale gas and new energy, merged into Guizhou Energy Group in November 2025.