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ICMA Green Bond Principles
The ICMA Green Bond Principles are voluntary guidelines issued by the International Capital Market Association in 2014-era form, updated June 2025, promoting transparency in green bond issuance.
IDACORP
IDACORP is a Boise, Idaho-based holding company formed in 1998 whose principal subsidiary is Idaho Power, a regulated utility serving southern Idaho and eastern Oregon.
Idaho Chemical Processing Plant
The Idaho Chemical Processing Plant was a Department of Energy facility at the Idaho National Laboratory that recovered uranium from spent reactor fuel from 1952 until its 1998 renaming.
Idd El Shargi North Dome Oil and Gas Field
Idd El Shargi North Dome (ISND) is an offshore oil field in Qatar's sector of the Persian Gulf, about 85 kilometers east of Doha, producing since 1964.
Idd El Shargi South Dome Oil and Gas Field
Idd El Shargi South Dome (ISSD) is an offshore oil field in Qatar, the smaller of the Idd El Shargi field's two domes, discovered in 1960.
Idoho Oil and Gas Field
The Idoho Oil and Gas Field is an offshore oil and gas field in the bight of Bonny, Nigeria, discovered in 1966 and producing since 1970 from OML 68.
Idu Oil and Gas Field
Idu Oil and Gas Field is an operating onshore oil and gas field in the Niger Delta of Nigeria, in OML 61, operated by Nigerian Agip Oil Company.
IE4 super-premium efficiency class
IE4, the super-premium efficiency class, is the second-highest class for line-operated AC electric motors under IEC 60034-30-1, above IE3 and below IE5, mandatory in the EU for motors of 75 to 200 kW since 2023.
IEA Clean Energy Technologies Programme
The IEA Clean Energy Technologies Programme is the branch of the International Energy Agency that coordinates clean energy technology development and oversees its 38 Technology Collaboration Programmes.
IEA NZE scenario
The Net Zero Emissions by 2050 (NZE) Scenario is an International Energy Agency scenario mapping one pathway for the global energy sector to reach net zero CO2 emissions by 2050.
IEA Wind Technology Collaboration Programme
The IEA Wind Technology Collaboration Programme (IEA Wind TCP) is an International Energy Agency program, founded in 1977, in which governments and industry jointly fund wind energy research.
IEC 60287
IEC 60287 is a series of IEC standards, Electric cables – Calculation of the current rating, giving formulae for the continuous current, or ampacity, of power cables in ground, ducts, or air.
IEC 60320
IEC 60320, the international appliance coupler standard family (Parts 1, 2-1 to 2-4, 3) from IEC/TC 23/SC 23G, covering detachable inlets and connectors rated up to 250 V AC and 16 A, with the 2021 fourth edition adding Annex E for use up to +90 °C.
IEC 61215
IEC 61215 is an International Electrotechnical Commission standard for design qualification and type approval of terrestrial photovoltaic modules, first published in 1993 and split since 2016 into parts covering test requirements and procedures.
IEC 61400
IEC 61400 is a series of international standards for wind energy generation systems, covering turbine design, power performance, noise, and communications, with Part 1 specifying design requirements.
IEC 61724
IEC 61724 is a series of International Electrotechnical Commission standards covering photovoltaic system performance, originally published in 1998 and split into parts on monitoring, capacity evaluation, and energy evaluation.
IEC 61851
IEC 61851, titled Electric vehicle conductive charging system, is an IEC standard series covering conductive charging of electric vehicles up to 1,000 V AC or 1,500 V DC.
IEC 62351
IEC 62351 is a multi-part international standard series defining data and communications security for power system protocols like IEC 61850 and DNP3, first published by the IEC in 2007.
IEC 62619
IEC 62619 is an international safety standard for rechargeable lithium cells and batteries used in industrial applications, published by the International Electrotechnical Commission in 2017 and updated in 2022.
IEEE 1159
IEEE 1159 is an IEEE recommended practice, formally the Recommended Practice for Monitoring Electric Power Quality, that defines terms and categories for sags, swells, and interruptions.
IEEE 1547
IEEE 1547 is the IEEE standard for interconnecting distributed energy resources, including inverters, generators, and converters, with electric power systems, first published in 2003 and revised in 2018.
IEEE 2030
IEEE 2030, formally IEEE Std 2030-2011, is an IEEE standard for smart grid interoperability across power, communications, and information technologies; a revision, project P2030, has been underway since 2023.
IEEE 2030.7
IEEE 2030.7, formally the IEEE Standard for the Specification of Microgrid Controllers, is a 2017 IEEE standard defining a microgrid controller's functions, including dispatch and transition.
IEEE 2800
IEEE 2800 is a 2022 IEEE standard that sets uniform minimum requirements for interconnecting inverter-based resources like solar, wind, and storage plants to transmission systems.
IEEE 519
IEEE 519 is the IEEE standard for harmonic control in electric power systems, first published in 1981 and the principal North American standard for harmonic distortion limits.
IEEE C37.111
IEEE C37.111 is the IEEE standard defining COMTRADE, a file format for storing and exchanging transient waveform and event data from power systems, first published in 1991.
Iernut Combined-Cycle Gas Turbine Power Plant
The Iernut Combined-Cycle Gas Turbine Power Plant is a 430 MW natural gas-fired station built by Romgaz at the existing Iernut thermal plant in central Transylvania, Romania.
IFA-2
IFA-2, the second France–Great Britain interconnector, is a 1,000 MW high-voltage direct current link between Tourbe in Normandy and Chilling in Hampshire, developed by National Grid and RTE and in commercial operation since January 2021.
IFRS S2
IFRS S2 Climate-related Disclosures is a sustainability standard issued by the ISSB on 26 June 2023, requiring companies to disclose climate-related risks and opportunities affecting their finances.
Ignacio Blanco Oil and Gas Field
Ignacio Blanco is a large natural gas field in the northern San Juan Basin, Colorado, where 1951 Fruitland coal-bed methane production was the basin's first.