705 abbreviations
Abbreviation Meaning
IGCC Integrated coal gasification combined cycle
IGIC Interim gas inventory charge (natural gas)
IGSC Interim gas supply charge (natural gas)
IGT Institute of Gas Technology (natural gas)
IHR Incremental Heat Rate- plant monitoring (electricity)
IIASA International Institute for Applied System Analysis
IJC International Joint Commission
ILP Integrated Licensing Process
INGAA Interstate Natural Gas Association of America
IOS Interconnected Operations Services (electricity)
IOU Investor owned utility (electricity)
IPAA Independent Petroleum Association of America (oil)
IPCC Intergovernmental Panel on Climate Change (climate)
IPP Independent Power Producer (electricity)
IPS/UPS Integrated Power System/United Power System, consisting of Independent Power Systems of 12 countries bordering Russia and the Unified Power System of Russia
IROL Interconnection Reliability Operating Limit (electricity)
IRP Integrated Resource Planning
IRR Internal Rate of Return (finance)
ISO Independent System Operator (US) (see also TSO) Responsible for grid management, but does not own assets. (electricity)
ISO NE ISO New England, Inc. (electricity)
ISO-NE Independent System Operator of New England, a Regional Transmission Organization. (US) (electricity)
ISS Interruptible Sales Service
IT Interruptible Transportation is gas shipment via pipeline whose delivery may be interrupted in favor of "firm shipment" contracts if there is lack of capacity. (natural gas)
ITC Investment tax credit (policy)
ITS Interruptible Transportation Service is gas shipment via pipeline whose delivery may be interrupted in favor of "firm shipment" contracts if there is lack of capacity. (natural gas)
JRC Joint Research Centre
JREC Johannesburg Renewable Energy Coalition
koe One kilogram oil equivalent (EU) (measurement)
kV Kilovolt (one thousand volts) (measurement)
KVA One thousand volt Ampere (measurement)
K-value thermal conductance
kvar one thousand vars (measurement)
Kw Kilowatt (one thousand watts) (measurement)
KWE kilowatt electric (measurement)
kWh Kilowatt hour (one thousand watt hours) (measurement)
LaaR Load acting as a resource (ERCOT category) (electricity)
LBNL Lawrence Berkeley National Laboratory (US)
LDC Local Distribution Company (electricity)
LEED Leadership in Energy and Environmental Design, standard for Green Building design
LEVP Low Emissions Vehicle Program
LHV lower heating value
LIHEAP Low Income Home Energy Assistance Program
LIPA Long Island Power Authority (US) (electricity)
LMP Locational marginal price/pricing. See explanation in electricity markets.
LNG Liquified Natural Gas
LODF Line Outage Distribution Factor (electricity)
LOLE Loss of Load Expectation (electricity)
Low-e low emissivity
LPG liquefied petroleum gas
LPN Lender Participation Notes