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- MaambaMaamba is a town located in Sinazongwe District in the Southern Province, Zambia. It is ab
- Maamba Coal Power StationCoal powered thermal power plant in Zambia
- MachiquesMachiques is a city in Zulia State, Venezuela, located in the northwest portion of the cou
- Maghreb–Europe Gas PipelineNatural gas pipeline linking Africa and Europe
- MagnoxType of British nuclear reactor
- Magnox (alloy)Magnox is an alloy—mainly of magnesium with small amounts of aluminium and other metals—us
- Mahi Banswara Atomic Power PlantNuclear power plant near Banswara, Rajasthan
- Maine Yankee Nuclear Power PlantNuclear power plant shut in 1996
- Mains electricityType of lower-voltage electricity most commonly provided by utilities
- Mambilla Hydroelectric Power StationNigerian hydroelectric power station
- Mandatory renewable energy targetMandatory renewable energy targets are part of government-legislated schemes which require
- Maracaibo BasinForeland basin in Venezuela
- Marcellus natural gas trendNatural gas extraction area in the United States
- Marcus Samuel, 1st Viscount BearstedLord Mayor of London 1902-1903
- Marine current powerExtraction of power from ocean currents
- Marine energyEnergy available from oceans
- Maritime call signCall signs assigned as unique identifiers to ships, planes, and boats
- Maritsa Iztok ComplexCoal power plant
- Mark DiesendorfAustralian academic and environmentalist
- Markbygden Wind FarmInterconnected wind farms west of Piteå, Sweden
- Martin Next Generation Solar Energy CenterSolar parabolic-trough component
- Marvin MangusAmerican geologist and painter
- Masaka–Mutukula–Mwanza High Voltage Power LineThe Masaka–Mutukula–Mwanza High Voltage Power Line is a proposed high voltage electricity
- Masindi DistrictMasindi District is a district in Western Uganda. Like many other Ugandan districts, it is
- Matala Hydroelectric Power StationHydroelectric power station in Angola
- Matala, AngolaMatala is a town and a municipality in the province of Huíla, Angola. The municipality had
- Matambo–Phombeya High Voltage Power LineSouthern African high voltage power line
- MatchDevice for lighting fires
- MatchboxContainer for holding matches
- Mathematics of three-phase electric powerMathematics and basic principles of three-phase electric power
- Matimba Power StationMatimba Power Station close to Ellisras, Limpopo Province, South Africa, is a dry-cooled c
- MatuggaMatugga is an urban centre in the Central Region of Uganda. The town is a rapidly developi
- Maun Concentrated Solar Power StationSolar power station in Botswana
- Mbale–Bulambuli–Siti Medium Voltage Power LineMedium voltage power line in Uganda
- Mbarara–Nkenda High Voltage Power LineUgandan high voltage electricity transmission line
- McArthur River uranium mineThe McArthur River Uranium Mine, in northern Saskatchewan, Canada, is the world's largest
- McCoy Solar Energy ProjectPhotovoltaic power plant in California, United States
- McMurray FormationThe McMurray Formation is a stratigraphic unit of Early Cretaceous age (late Barremian to
- Meadow Lake Wind FarmWind farm in Indiana, United States
- Mean absolute percentage errorThe mean absolute percentage error (MAPE), also known as mean absolute percentage deviatio
- Mechanical energySum of potential and kinetic energy
- MedgazMedgaz is a submarine natural gas pipeline between Algeria and Spain.
- Medupi Power StationMedupi Power Station is a dry-cooled coal-fired power station built by Eskom near Lephalal
- Megatons to Megawatts ProgramThe Megatons to Megawatts Program, also called the United States-Russia Highly Enriched Ur
- Memve'ele Hydroelectric Power StationPower station in Cameroon
- Merit orderRanking of available sources of energy
- Method of averagingIn mathematics, more specifically in dynamical systems, the method of averaging (also call
- MetturMettur is an industrial and tourist town located in the Salem district in the state of Tam
- Mettur DamDam in Tamil Nadu, India
- Meuse/Haute Marne Underground Research LaboratoryRock laboratory aimed to characterize the Callovo-Oxfordian Clay
- Michel T. HalboutyMichel Thomas Halbouty (21 June 1909 in Beaumont, Texas – 6 November 2004 in Houston, Texa
- Micro combined heat and powerSmall-scale generation of heat and power
- Micro hydroHydroelectric power generation of 5 to 100 kW of electricity
- Microgeneration (energy)Small-scale heating and electric power creation
- Middelgrunden wind farmThe Middelgrunden wind farm stands on the shoal Middelgrunden, between shipping lanes in t
- Middle Magdalena ValleyInterandean valley in north-central Colombia
- MidstreamSector of the oil and gas industry
- Mildura Solar Concentrator Power StationProposed solar system
- Miles per gallon gasoline equivalentMeasurement of fuel economy
- Miller oilfieldOil reservoir under the North Sea
- Minamiaiki DamThe Minamiaiki Dam is a rock-fill embankment dam on the Minamiaiki River in Minamiaiki, Na
- Mineral Leasing Act of 1920The Mineral Leasing Act of 1920 30 U.S.C. § 181 et seq. is a United States federal law tha
- Mineral oilDistillate of petroleum
- Mineral-insulated copper-clad cableType of fire-resistant electrical cable
- Mini-gridSmall scale electricity distribution grid
- Mining industry of AlgeriaHydrocarbons are the leading sector in Algeria's mineral industry, which includes diverse
- Mining industry of RussiaThe mineral industry of Russia is one of the world's leading mineral industries and accoun
- Mining industry of SurinameThe mineral industry of Suriname makes up a large proportion of the country's economy. In
- Ministry of Energy (Saudi Arabia)Government ministry of Saudi Arabia
- Ministry of Energy and Mineral Development (Uganda)Government ministry of Uganda
- Ministry of Oil (Kuwait)Government ministry of Kuwait
- Ministry of Petroleum and MiningGovernment ministry of South Sudan
- Mirama HillsMirama Hills is a town in the Western Region of Uganda.
- Mirama–Kabale High Voltage Power LineUgandan high voltage electricity transmission line
- Mirama–Kikagati–Nsongezi High Voltage Power LineHigh voltage power line in Uganda
- Mishor Rotem Power StationThe Mishor Rotem Power Station is a former oil shale-fired power station and current natur
- Mississippi CanyonMississippi Canyon (the United States)
- Mitsubishi APWRJapanese nuclear reactor design
- MittelplateMittelplate is Germany's largest oil field, 7 km (4.3 mi) from the shore, in the environme
- Moamba DistrictMoamba District is a district of Maputo Province in southern Mozambique. Its main town is
- Mojave Solar ProjectSolar power plant in California, US
- Molten-salt reactorType of nuclear reactor cooled by molten salt
- Mond gasMond gas is a cheap coal gas that was used for industrial heating purposes. Coal gases are
- Monroney stickerAutomobile label in the United States
- Montney FormationThe Montney Formation is a stratigraphical unit of Lower Triassic age in the Western Canad
- Mooring (oceanography)A mooring in oceanography is a collection of devices connected to a wire and anchored on t
- Moroto TownMoroto is a town in Moroto District in the Northern Region of Uganda. The town serves as t
- Moss Landing Power PlantNatural gas-fired power station in Moss Landing, California
- Mount Signal SolarPhotovoltaic power station in Imperial County, California
- Mphanda Nkuwa DamProposed Zambezi construction
- Mr. LouieOil drilling platform
- Msenge Emoyeni Wind Power StationWind farm in South Africa
- MT HavenCrude oil carrier that sank off the coast of Genoa, Italy in 1991
- Multiway switchingInterconnection of two or more electrical switches
- Mumbai High FieldOilfield in India
- Mundra Ultra Mega Power PlantBuilding in India
- MurraylinkHVDC underground power line in Australia
- Museum AutovisionMuseum Autovision is a museum for cars, motorcycles, bicycles in Altlußheim, a small town
- Mustafa Jassem Al-ShamaliMustafa Jassem Al-Shamali (born 1943) is a Kuwaiti politician who has had held different c
- Mutukula, UgandaMutukula is a town in Kyotera District, in the Central Region of Uganda, the third-largest
- MutundweMutundwe is a neighborhood in the Kampala Division of Rubaga and Wakiso Division of Makind
- Mutundwe–Entebbe High Voltage Power LineElectricity transmission line in Uganda
- Mwadingusha Hydroelectric Power StationPower station in the Democratic Republic of the Congo

