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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 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 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 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 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.
Energy crisis
An energy crisis, also called an energy shortage, is a widespread disruption in energy supply or a steep rise in its price, recurring since the 1970s oil shocks.
Energy development
Energy development, also called sources of energy, is the effort to produce and expand access to energy services, including electricity, clean cooking, and low-carbon sources.
Energy Development Oman
Energy Development Oman (EDO) is Oman's wholly state-owned energy holding company, established by royal decree in 2020, holding a 60 percent stake in Petroleum Development Oman and owning the green hydrogen body Hydrom.
Energy Dome
Energy Dome is an Italian long-duration energy storage company founded in Milan in 2020, known for its CO2 Battery, which stores electricity by compressing carbon dioxide into a liquid.
Energy Efficiency Directive
The Energy Efficiency Directive is the European Union's framework law setting binding targets for reducing energy consumption, recast in 2023 under the Fit for 55 package.
Energy Efficiency First Principle
The Energy Efficiency First principle (EE1st) is a rule of European Union energy policy requiring cost-efficient efficiency measures to be considered as alternatives to new supply infrastructure.
Energy Harbor
Energy Harbor Corp. was an independent, privately held energy producer and retailer headquartered in Akron, Ohio, created in 2020 when FirstEnergy Solutions emerged from bankruptcy; Vistra acquired it in 2024.
Energy harvesting
Energy harvesting, also called energy scavenging, converts ambient mechanical, thermal, and radiative energy into usable electrical power, letting wireless sensors, wearables, and biomedical implants run without batteries.
Energy in Germany
Energy in Germany is supplied by a system in transition: it imports 67 percent of its energy, and renewables generated a record 54.4 percent of electricity in 2024.
Energy in the United Kingdom
Energy in the United Kingdom covers the production, import, conversion, and consumption of energy across electricity, gas, oil, and renewable systems, guided by the Clean Power 2030 target.
Energy in the United States
Energy in the United States, also called energy use in the US, comes mainly from petroleum and natural gas; 2024 production hit a record 103.3 quads.
Energy industry
The energy industry, also called the energy sector, is the economic sector that produces fossil fuels, generates and delivers electricity, and builds renewable energy equipment, and it is the largest source of global greenhouse gas emissions.
Energy intensity
Energy intensity is the energy used per unit of economic output, measured as total energy supply divided by GDP, and the official indicator for SDG target 7.3.
Energy Market Regulatory Authority (Turkey)
The Energy Market Regulatory Authority (EMRA; Turkish: Enerji Piyasası Düzenleme Kurumu, EPDK) is Turkey's independent energy regulator, handling licensing and tariffs for electricity, natural gas, petroleum, and LPG markets.
Energy Northwest
Energy Northwest, formerly the Washington Public Power Supply System, is a Washington joint operating agency formed in 1957 that generates carbon-free electricity at cost for member utilities.
Energy Performance Certificate
An Energy Performance Certificate rates a building's energy efficiency on an A to G scale and recommends improvements, required when buildings are sold or rented across Europe.
Energy Performance Contracting
Energy performance contracting (EPC) is a service contract in which an energy service company guarantees specified energy savings, letting clients pay for improvements from the savings.
Energy Performance of Buildings Directive
The Energy Performance of Buildings Directive (EPBD) is the European Union's main law on building energy performance, first adopted in 2002 and requiring all new buildings to be zero-emission from 2030.
Energy Policy Act of 2005
The Energy Policy Act of 2005 is a United States federal law, signed by President George W. Bush on August 8, 2005, setting policy on energy production, efficiency, and electricity regulation.
Energy Policy and Conservation Act
The Energy Policy and Conservation Act (EPCA) is a 1975 United States federal law that created the Strategic Petroleum Reserve and CAFE fuel economy standards.