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Energiewende
The Energiewende, German for "energy transition," is Germany's policy of shifting from nuclear and fossil fuels to renewables, targeting 80 percent renewable electricity by 2030.
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.
Energistyrelsen
Energistyrelsen, in English the Danish Energy Agency (DEA), is the Danish government agency responsible for energy production, supply, and consumption and carbon emission reduction, established in 1976 under the Ministry of Climate, Energy and Utilities.
Energize Ventures
Energize Ventures, also known as Energize Capital since 2023, is a Chicago-based venture capital firm investing in energy-transition software, founded with backing from Invenergy and Michael Polsky.
Energizer
Energizer, also known as Energizer Holdings, is an American consumer products company selling household, rechargeable, and hearing aid batteries worldwide under the Energizer, Eveready, Rayovac, and Varta brands.
Energizer Bunny
Energizer Bunny, pink drumming toy rabbit mascot of Energizer batteries in North America, created in 1988-1989 as a parody of Duracell's 1973 Duracell Bunny; tagline "It keeps going and going and going."
Energoatom
Energoatom, formally the National Nuclear Energy Generating Company, is Ukraine's state-owned nuclear power operator, running 15 reactors and nominally the Zaporizhzhia plant, occupied by Russia since March 2022.
Energon Universe (comics)
Energon Universe (comics): shared comic universe from Skybound/Hasbro at Image Comics, launched June 14, 2023 via Void Rivals #1 (Jetfire reveal), uniting Transformers, G.I. Joe, Void Rivals, later M.A.S.K.
Energous Corporation
Energous Corporation, originally incorporated as DvineWave Inc. in 2012, is a San Jose semiconductor company developing over-the-air RF wireless charging, marketed as WattUp, and listed on Nasdaq under WATT.
Energy
Energy is the physical quantity measuring a system's ability to do work; it appears in forms like kinetic, thermal, and chemical, and is never created or destroyed.
Energy (esotericism)
Energy, in esoteric and New Age contexts also called subtle or spiritual energy, is a postulated vital force, named ki, prana, or qi, held to animate living beings and underlie healing practices like Reiki.
Energy & Minerals Group
The Energy & Minerals Group is a natural-resources private equity firm founded in Houston, Texas in 2006 by John T. Raymond, with about $12 billion in assets under management.
Energy 52
Energy 52 was a German trance project of Berlin producers Cosmic Baby (Harald Blüchel) and DJ Kid Paul, known for the 1993 anthem "Café Del Mar".
Energy Act 2023
The Energy Act 2023 is a United Kingdom law covering energy production, security, and market regulation, receiving Royal Assent on 26 October 2023 as the largest energy legislation in UK history.
Energy Act of 2020
The Energy Act of 2020 is a US federal statute, signed December 27, 2020, that authorizes Department of Energy research and demonstration programs across energy efficiency, nuclear, renewables, and storage.
Energy adaptive clustering
Energy adaptive clustering is a family of clustering protocols for wireless sensor networks in which nodes use residual energy to rotate the cluster-head role and extend system lifetime.
Energy as a service
Energy as a service (EaaS) is a business model in which a provider bundles on-site generation, storage, and electricity supply, with customers paying for reliable, cheaper energy.
Energy attribute certificate
An energy attribute certificate (EAC) is a contractual instrument tracking attributes like source and emissions of a unit of energy generation, including renewable energy certificates and guarantees of origin.
Energy audit
An energy audit is a systematic analysis of energy use in a building or facility, producing a ranked report of efficiency measures with estimated savings and costs.
Energy Brands
Energy Brands Inc. (Glacéau), founded 1996 by J. Darius Bikoff in New York, created vitaminwater and smartwater and the enhanced water category; Coca-Cola acquired it in 2007 for $4.1 billion.
Energy burden
Energy burden is the share of a household's gross income spent on energy costs, the standard US benchmark for targeting programs like LIHEAP and weatherization.
Energy Capital Partners
Energy Capital Partners, or ECP, is an American private equity firm founded in 2005 and based in Summit, New Jersey, known for its $17 billion buyout of Calpine.
Energy cascade
The energy cascade is the transfer of kinetic energy across scales in a turbulent flow, from large eddies down through smaller ones until viscosity dissipates it as heat.
Energy Charter Treaty
Energy Charter Treaty (ECT): multilateral energy investment and trade agreement signed 17 December 1994, in force 16 April 1998, with Article 26 ISDS arbitration; modernised 2022-2024 amid mass European withdrawals including the EU in 2025.
Energy Community
The Energy Community is an international organization established by a treaty signed in Athens in 2005, extending the EU's internal energy market rules to nine neighboring countries.
Energy conditions (general relativity)
In general relativity, energy conditions are inequalities on the stress-energy tensor prescribing positive energy density and gravity's attractiveness, best known from Penrose and Hawking singularity theorems.
Energy confinement time and scaling laws
Energy confinement time is the ratio of stored thermal energy to heating power in a magnetically confined plasma, with empirical scaling laws predicting confinement across tokamak sizes.
Energy conservation
Energy conservation, also called energy saving, means reducing energy use through actions like turning off lights; in physics, it is the law that energy only changes form, never destroyed.
Energy Conservation Building Code
The Energy Conservation Building Code (ECBC) is India's national building energy code for commercial buildings, launched in May 2007 by the Ministry of Power through the Bureau of Energy Efficiency.
Energy conversion efficiency
Energy conversion efficiency is the ratio of useful energy output to energy input, usually a percentage, applying to power plants, solar cells, motors, and vehicles.