Please use the left navigation bar to access smart grid acronyms alphabetically.

Industry to Grid - One of the six DOE GridWise Architecture Council and NIST defined Smart Grid domains that focus on interoperability and interaction between the electric grid and industrial facilities, including electric power generation. Source: NIST
International Association of Energy Economics - A worldwide non-profit professional organization based in the United States, which has members in over 70 nations, who strive to provide an interdisciplinary forum for the exchange of ideas, experience and issues among professionals interested in energy economics. Source: IAEE
Information Assurance Technical Framework Forum - A National Security Agency (NSA) sponsored outreach activity created to foster dialog amongst U.S. Government agencies, U.S. Industry, and U.S. Academia seeking to provide their customers solutions for information assurance problems. The ultimate objective of the IATFF is to agree on a framework for information assurance solutions that meet customers’ needs and foster the development and use of solutions that are compatible with the framework. Source: Jawin
Installed Capacity - A market that provides generators compensation for siting units based on the net capacity the unit provided to the market after accounting for forced outages at the unit. Source: ISO New England
Inter-control Center Communications Protocol - Telecontrol Application Service Element.2 - Telecontrol Application Service Element.2 - Protocol developed by IEC TC57 WG07 for data exchange over Wide Area Networks (WANs) between a utility control center and other control centers, other utilities, power plants and substations. Source: IntelliGrid
Industrial Control Systems - A general term that encompasses several types of control systems, including supervisory control and data acquisition (SCADA) systems, distributed control systems (DCS), and other control system configurations such as skid-mounted Programmable Logic Controllers (PLC) often found in the industrial sectors and critical infrastructures. ICS are typically used in industries such as electrical, water and wastewater, oil and natural gas, chemical, transportation, pharmaceutical, pulp and paper, food and beverage, and discrete manufacturing (e.g., automotive, aerospace, and durable goods). Source: NIST
Interest During Construction - Interest actually paid to stockholders during construction and before operations, interest recorded only as a book entry on the stockholders’ investment, and interest on working capital used for construction, or additions and betterments, after the beginning of operations. Source: Interest During Construction in Public Utility Accounting by John Bickley
Integrated Demand-Side Management - The process of incorporating the full range of demand-side strategies into facilities’ energy projects and seeking synergies among them, including energy efficiency and conservation, demand response, time-of-use management, smart grid technologies, and self-generation (including renewables). Source: EERE
International Energy Agency - An intergovernmental organization which acts as energy policy advisor to 28 member countries in their effort to ensure reliable, affordable and clean energy for their citizens. Source: IEA
International Electrotechnical Commission - This is a non-governmental federation of national committees from around 50 countries, representing all the industrial countries in the world. It was established in 1906 to "promote international cooperation on all questions of standardization and related matters in the fields of electrical and electronic engineering and thus to promote international understanding." Source: IEEE
IEC 61850ug
IEC 61850 Technical Subcommittee - Administers the identification and resolution of technical problems for the IEC 62850 IS. Source: UCA International Users Group
IEC Technical Committee 57 - To prepare international standards for power systems control equipment and systems including EMS (Energy Management Systems), SCADA (Supervisory Control And Data Acquisition), distribution automation, teleprotection, and associated information exchange for real-time and non-real-time information, used in the planning, operation and maintenance of power systems. Source: International Electrotechnical Commission
Integrated Energy and Communications System Architecture - An initial set of requirements that represent "architecturally significant" applications, analyses and guidelines to help direct the industry toward the development of advanced automation systems that can be integrated on large scales. Source: IntelliGrid
Intelligent Electronic Device - A device capable of receiving or sending data or control information (NIST SP 500-82). Source: DOE
Institute of Electrical Efficiency - A program of the Edison Foundation, a 501(c)(3) charitable organization, and is governed by a Management Committee of electric industry executives. IEE works to advance energy-efficiency practices and demand response among electric utilities; promote the sharing of information, ideas, and experiences in energy efficiency and demand response in the power sector; and develop a resource base of effective business models, practices, and processes. Source: The Edison Foundation
Institute of Electrical and Electronic Engineers - The IEEE (Eye-triple-E) is a non-profit, technical professional association of more than 360,000 individual members in approximately 175 countries. Through its members, the IEEE is a leading authority in technical areas ranging from computer engineering, biomedical technology and telecommunications, to electric power, aerospace and consumer electronics, among others. Through its technical publishing, conferences and consensus-based standards activities, the IEEE; produces 30 percent of the world's published literature in electrical engineering, computers and control technology, holds annually more than 300 major conferences and has nearly 900 active standards with 700 under development. Source: IEEE
Independent Energy Producers Association - California's oldest and leading nonprofit trade association, representing the interest of developers and operators of independent energy facilities and independent power marketers. Source: IEPA
Independent Electricity System Operator - A not-for-profit corporate entity established in 1998 by the Electricity Act of Ontario that works at the heart of Ontario's power system, connecting all participants - generators that produce electricity, transmitters that send it across the province, retailers that buy and sell it, industries and businesses that use it in large quantities and local distribution companies that deliver it to people's homes. Source: IESO
Internet Engineering Task Force - A large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet. It is open to any interested individual. Source: IEEE
Intelligent Feeder Automation System - Also known as Intelligent Distribution Automation System (IDAS), is designed to control and monitor the facilities from substation to customer and distributed resources. Source: IEEE
In-Home Display - The display part of an advanced electricity meter, smart meter, that uses real time sensors to provide information on power consumption and price. Source: ACEEE
International Mobile Telecommunications 2000 - The first family of standards derived from development of a global broadband multimedia international mobile telecommunication system. Source: International Telecommunication Union
Idaho National Laboratory - A science-based, applied engineering national laboratory dedicated to supporting the U.S. Department of Energy's missions in nuclear and energy research, science, and national defense. Source: INL
Interagency OPSEC Support Staff - Provides tailored training, assists in program development, produces multimedia products and presents conferences for the defense, security, intelligence, research and development, acquisition and public safety communities. Source: National OPSEC Program
Investor-Owned Utility - A privately-owned electric utility whose stock is publicly traded. It is rate regulated and authorized to achieve an allowed rate of return. Source: EIA
Internet Protocol - A connectionless, packet-switched network layer protocol for exchanging data between computers. IP standards are set by the Internet Engineering Task Force; currently standardized on IP version 4 (IPv4)—another version, IPv6, has been deployed and makes use of IPv4 space via tunneling—the Internet Protocol requires a host-to-host transport protocol specified as either TCP (Transmission Control Protocol), which defines a connection-oriented service, or UDP (User Datagram Protocol), which defines a connectionless service. IP connectivity entails the provision of Internet protocol connectivity to an end user such that that end user is able to communicate with other users also granted similar connectivity]. Because non-Internet IP services exist, however, IP connectivity does not necessarily imply connectivity to the public Internet. Source: CRTC
Independent Power Producer - A corporation, person, agency, authority, or other legal entity or instrumentality that owns or operates facilities for the generation of electricity for use primarily by the public, and that is not an electric utility. Source: FERC
IPSO Alliance
Internet Protocol for Smart Objects Alliance - A non-profit association that is the primary advocate for IP networked devices for use in energy, consumer, healthcare and industrial applications. Source: IPSO Alliance
ISO/RTO Council - An industry organization comprised of ten Independent System Operators (ISOs) and Regional Transmission Organizations (RTOs) in North America. The IRC works collaboratively to develop effective processes, tools, and methods for improving competitive electricity markets across North America. The IRC’s goal is to balance reliability considerations with market practices, resulting in efficient, robust markets that provide competitive and reliable service to electricity users. Source: IRC
Interstate Renewable Energy Council - A non-profit organization creating renewable energy programs and policies targeted at the adoption of uniform guidelines, standards and quality assessment. Source: IREC
Interface Reference Model - A set of business functions, sub divided into sub-functions and them in to abstract components that are portions of a software system that supports functions of one or more interfaces and found to be desirable for a distribution management system. Source: Royal Institute of Technology School of Electrical Engineering
International Society of Automation - A leading, global, nonprofit organization that develops standards; certifies industry professionals; provides education and training; publishes books and technical articles; and hosts conferences and exhibitions for automation professionals. Source: ISA
International Organization for Standardization - This is a non-governmental, world-wide federation of national standards bodies from some 100 countries, one per country, which was established in 1947 to "promote the development of standardization and related activities in the world with a view to facilitating the international exchange of goods and services, and to developing cooperation in the spheres of intellectual, scientific, technological and economic activity." Source: IEEE

Independent Systems Operator - An independent, federally regulated entity established to coordinate regional transmission in a non-discriminatory manner and ensure the safety and reliability of the electric system. Source: FERC

Independent System Operator – New England - New England - An independent, not-for-profit corporation that is a regional transmission organization (RTO), serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont. ISO-NE provides minute-to-minute reliable operation of New England's bulk electric power system; development, oversight and fair administration of New England's wholesale electricity marketplace; and management of comprehensive bulk electric power system and wholesale markets' planning processes that address New England's electricity needs well into the future. Source: ISO-NE
Information Technology - The technology used for the study, understanding, planning, design, construction, testing, distribution, support and operations of software, computers and computer related systems that exist for the purpose of Data, Information and Knowledge processing. The industry that has evolved to include the study, science, and solution sets for all aspects of Data, Information and Knowledge management and/or processing. The Organization in an enterprise or business that is held responsible and accountable for the technology used for planning, design, construction, testing, distribution, support and operations of software, computers and computer related systems that exist for the purpose of Data, Information and Knowledge management and/or processing. Source: The international Foundation for Information Technology
International Telecommunications Union - The ITU, headquartered in Geneva, Switzerland is an international organization within the United Nations System where governments and the private sector coordinate global telecom networks and services. Source: IEEE
IUN Coalition
Intelligent Utility Network Coalition - Also known as the Global Intelligent Utility Network Coalition, a group of utility companies working with IBM to accelerate the adoption of smart grid technologies and business solutions throughout the world. Source: IBM
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