901 articles
Malakoff Corporation
Malakoff Corporation Berhad is a Malaysian energy generation and environmental solutions company, the country's largest independent power producer and a member of MMC Group listed on Bursa Malaysia.
Manitoba Hydro
Manitoba Hydro is a provincial Crown corporation that supplies electricity and natural gas to Manitoba, with up to 97 percent of its electricity generated from water in northern hydroelectric stations.
Margaret Sze-Tai Y. Chu
Margaret Sze-Tai Y. Chu is an American nuclear waste management expert who led the Department of Energy's Yucca Mountain repository program and was elected to the National Academy of Engineering.
Maritime Electric
Maritime Electric is a regulated electric utility and the principal distributor of electricity in Prince Edward Island, serving about 91,000 customers as a wholly-owned subsidiary of Fortis Inc.
Mark Todd Peters
Mark Todd Peters is an American engineer who became the 10th president and CEO of MITRE Corporation in September 2024, after leading Idaho National Laboratory from 2015 to 2020.
Mass Group Holding
Mass Group Holding (مجموعة ماس القابضة) is a private Jordanian industrial group, founded in 2006 by Ahmed Ismail Saleh, that builds power stations in Iraq.
Mass-impregnated cable
A mass-impregnated (MI) cable is a high-voltage power cable insulated with paper tape impregnated with a viscous oil-like compound, used almost exclusively for HVDC submarine transmission since the 1950s.
Meralco
Meralco, also called the Manila Electric Company, is the Philippines' largest private electric distribution utility, serving about 8.2 million customers in Metro Manila and nearby provinces.
Merging unit
A merging unit (MU) is a device in a digital substation that converts analog currents and voltages from instrument transformers into digitized IEC 61850 Sampled Values streams.
MES (transmission system operator)
MEPSO, formally the Electricity Transmission System Operator of the Republic of North Macedonia, is the sole electricity transmission system operator of North Macedonia, a fully state-owned company in Skopje established in 2005.
Metal-clad switchgear
Metal-clad switchgear (MC switchgear) is medium-voltage switchgear in which circuit breakers, buses, and cable terminations are housed in separate compartments enclosed by grounded metal barriers.
Metal-enclosed switchgear
Metal-enclosed switchgear is power switching equipment enclosed on all sides and top in sheet metal, containing switches, circuit breakers, fuses, and buses for medium-voltage distribution, standardized by IEEE C37.20.3.
Metlen Energy & Metals
Metlen Energy & Metals, previously MYTILINEOS, is a Greek industrial and energy company founded in 1990 that operates in power generation, retail electricity supply, renewables, and aluminum production, and joined the FTSE 100 in 2025.
MIBEL
MIBEL (Mercado Ibérico de la Electricidad; Mercado Ibérico de Electricidade) is the Iberian Electricity Market, the common wholesale electricity market of Spain and Portugal, created by treaty and fully launched in 2007.
Microgrid
A microgrid is a group of interconnected electrical loads and local energy resources that operates as a single controllable entity, running connected to the main grid or islanded from it.
Midcontinent Independent System Operator, Inc.
The Midcontinent Independent System Operator (MISO) is a not-for-profit organization that runs the high-voltage grid and wholesale power markets across 15 US states and Manitoba, serving about 42 million people from Carmel, Indiana.
Ministry of Electricity (Iraq)
The Ministry of Electricity (وزارة الكهرباء) is the Iraqi government ministry responsible for electricity policy and for managing generation, transmission, and distribution; created in 2003, it is headquartered in Baghdad.
Ministry of Electricity and Water and Renewable Energy (Kuwait)
The Ministry of Electricity and Water and Renewable Energy (MEWRE) is Kuwait's government ministry responsible for generating and distributing electricity, producing fresh water, and developing renewable energy projects.
Minnkota Power Cooperative
Minnkota Power Cooperative is a not-for-profit electric generation and transmission cooperative based in Grand Forks, North Dakota, serving 11 member cooperatives in eastern North Dakota and northwestern Minnesota.
Mississippi Power
Mississippi Power is a Gulfport, Mississippi, electric utility serving about 192,000 customers in 23 southeastern counties. Founded in 1925, it is a wholly owned subsidiary of Southern Company.
Modular multilevel converter
A modular multilevel converter, or MMC, is a high-power electronic converter that spreads AC-to-DC conversion across many series-connected submodules; invented by Rainer Marquardt in 2001, it dominates HVDC transmission.
Monongahela Power
Monongahela Power, commonly known as Mon Power, is an investor-owned electric utility headquartered in Fairmont, West Virginia, serving about 395,000 customers in 34 counties of northern and central West Virginia.
Mosenergo
Mosenergo (Мосэнерго) is a Russian power company generating electricity and district heat for Moscow and the surrounding region, with about 12.3 GW of capacity and Gazprom as majority shareholder since 2007.
Municipal Electric Authority of Georgia
The Municipal Electric Authority of Georgia (MEAG Power) is a nonprofit statewide public corporation created by the Georgia General Assembly in 1975, supplying wholesale power to 49 member communities.
MVM Group
MVM Group (Magyar Villamos Művek) is a wholly state-owned Hungarian energy group in Budapest, operating in electricity and natural gas across 23 countries with nearly 20,000 employees.
N-1 criterion
The N-1 criterion is a power system reliability rule requiring that the grid remain secure, within emergency ratings and stability limits, after any single element's loss.
Nareva Holding
Nareva Holding is a Moroccan energy company founded in 2004, a subsidiary of Al Mada, generating electricity and operating across the water cycle from Casablanca.
Narragansett Electric Company
The Narragansett Electric Company is a Rhode Island utility that transmits and distributes electricity across most of the state, doing business as Rhode Island Energy since 2022.
National Energy System Operator
The National Energy System Operator (NESO), formerly National Grid ESO, is Great Britain's publicly owned electricity system operator, created on 1 October 2024 when the government bought National Grid's ESO for £630 million.
National Grid (Great Britain)
National Grid plc is a British publicly listed energy network company that owns the high-voltage electricity transmission network in England and Wales and major utilities in the United States.