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NCM 622
NCM 622, also written NMC 622, is a nickel-rich lithium nickel manganese cobalt oxide cathode material with a 6:2:2 metal ratio, used in Hyundai Kona and BMW i3 battery packs.
Ndungu Oil Field
Ndungu is a deepwater oil field in Block 15/06, offshore Angola, discovered in 2019 and developed by Azule Energy to a peak of 60,000 barrels per day.
Near-field thermophotovoltaic converters
A near-field thermophotovoltaic converter is a solid-state heat engine where a hot emitter and photovoltaic cell separated by a nanoscale gap exceed the blackbody limit.
Near-field thermophotovoltaics
Near-field thermophotovoltaics (NF-TPV) is an energy-conversion approach where a nanoscale gap between a hot emitter and a photovoltaic cell lets photon tunneling surpass the blackbody limit.
Near-room-temperature thermoelectrics
Near-room-temperature thermoelectrics are materials and devices that convert heat into electricity or pump heat as solid-state coolers near ambient temperature, dominated since the 1950s by bismuth telluride alloys, with tellurium-free magnesium-based alternatives now under study.
Near-surface disposal
Near-surface disposal, also called shallow land burial, is the disposal of radioactive waste in trenches, engineered structures, or rock caverns at or near the Earth's surface.
Nearly zero-energy building
A nearly zero-energy building (NZEB) is a building with very high energy performance whose low remaining energy need is covered largely by on-site or nearby renewable sources.
Nebraska City Station
Nebraska City Station is a two-unit, coal-fired power plant about five miles southeast of Nebraska City, Nebraska, owned and operated by the Omaha Public Power District since 1979.
Nebraska Public Power District
Nebraska Public Power District is a publicly owned, not-for-profit electric utility headquartered in Columbus, Nebraska, serving about 530,000 people across 84 of the state's 93 counties.
Neches River Terminal
The Neches River Terminal is an NGL export terminal on the Neches River in Orange County, Texas, owned by Enterprise Products Partners, which began ethane exports in July 2025.
Neckarwestheim nuclear power plant
The Neckarwestheim nuclear power plant (Kernkraftwerk Neckarwestheim) was a German station with two pressurized water reactors near Heilbronn, shut down by 2023 and now being dismantled by EnBW.
Nederland (Energy Transfer terminal)
Nederland is an Energy Transfer crude oil and NGL storage and marine export terminal in Jefferson County, Texas, with about 33 million barrels of storage.
Nederlandse Gasunie
Nederlandse Gasunie is a Dutch state-owned energy infrastructure company founded in 1963 to exploit the Groningen gas field, operating about 16,000 km of gas pipelines in the Netherlands and northern Germany.
Nedstack
Nedstack Fuel Cell Technology is a Dutch manufacturer of PEM fuel cell stacks in Arnhem, founded in 1999 by AkzoNobel and ECN, declared bankrupt in 2024.
Neft Dashlary-Bahar Gas Pipeline
The Neft Dashlary-Bahar Gas Pipeline, also known as Neft Dashlari-Bahar-AzGPZ, is a 66-kilometer underwater gas pipeline in the Azerbaijani Caspian Sea, commissioned by SOCAR in December 2007.
Neftyanye Kamni
Neftyanye Kamni (Neft Daşları, "Oil Rocks") is an offshore oil field and settlement in the Caspian Sea off Azerbaijan, site of the first commercial offshore oil production in open sea.
Negative pricing
Negative pricing in electricity markets is a wholesale price below zero, meaning sellers pay buyers to take power, which arises when inflexible generators keep producing during low demand.
Negative temperature feedback
Negative temperature feedback in a nuclear reactor is the inherent effect by which rising temperature lowers reactivity, so fission and heat output fall without any operator action.
Negative-sequence current
Negative-sequence current is the symmetrical component, from Fortescue's 1918 method, that appears when three-phase currents or voltages are unbalanced, producing counter-rotating fields, rotor heating, and vibration in machines.
NégaWatt
NégaWatt is a French nonprofit association founded in 2001 that produces independent energy scenarios for France, prioritizing sufficiency, then efficiency, then renewables, with carbon neutrality by 2050.
Negishi LNG Terminal
Negishi LNG Terminal is an LNG import terminal in Isogo-ku, Yokohama, Japan, jointly operated by Tokyo Gas and TEPCO and opened in November 1969 as Japan's first.
Neijiang Baima power station
Neijiang Baima power station (内江白马发电厂) is a coal-fired power station in Neijiang, Sichuan, China, home to the world's first 600 MW supercritical circulating fluidized bed boiler.
Neishabour power station
Neishabour power station (نیروگاه نیشابور), also called the Khayyam plant, is a combined cycle gas-fired power station at Neyshabur in Razavi Khorasan, Iran, built in phases from 1994 to 2003.
Nejo Oil and Gas Field
Nejo, also known as Campo Nejo, is a natural gas and condensate field in the Burgos Basin in Tamaulipas, northeastern Mexico, discovered in 2003 and operated by Pemex.
Neka–Ray Oil Pipeline
The Neka–Ray Oil Pipeline, also called Neka–Rey or CROS, is a crude oil pipeline in northern Iran running from Neka on the Caspian Sea to the Rey terminal near Tehran.
NEL Gas Pipeline
The NEL (Nordeuropäische Erdgasleitung) is a 440-km natural gas pipeline in northern Germany, running from Lubmin on the Baltic Sea to the Rehden gas hub.
Nel Hydrogen
Nel Hydrogen is a Norwegian company based in Oslo that makes alkaline and PEM electrolysers for producing hydrogen, with roots in Norsk Hydro dating to 1927.
Nelson Complexity Index
The Nelson Complexity Index (NCI) is a measure of the sophistication and capital intensity of a petroleum refinery, developed by Wilbur L. Nelson in the 1960s; refineries scoring above 15 are very complex.
Nelson Oil and Gas Field
The Nelson oil and gas field is a producing oil field in the UK Central North Sea, about 200 kilometers east of Aberdeen, discovered in 1988 and operated by Shell.
NEM 3.0
NEM 3.0 is the informal name for California's Net Billing Tariff, the CPUC's successor to net energy metering for rooftop solar, effective April 15, 2023.