705 abbreviations
AbbreviationMeaning
IGCCIntegrated coal gasification combined cycle
IGICInterim gas inventory charge (natural gas)
IGSCInterim gas supply charge (natural gas)
IGTInstitute of Gas Technology (natural gas)
IHRIncremental Heat Rate- plant monitoring (electricity)
IIASAInternational Institute for Applied System Analysis
IJCInternational Joint Commission
ILPIntegrated Licensing Process
INGAAInterstate Natural Gas Association of America
IOSInterconnected Operations Services (electricity)
IOUInvestor owned utility (electricity)
IPAAIndependent Petroleum Association of America (oil)
IPCCIntergovernmental Panel on Climate Change (climate)
IPPIndependent Power Producer (electricity)
IPS/UPSIntegrated Power System/United Power System, consisting of Independent Power Systems of 12 countries bordering Russia and the Unified Power System of Russia
IROLInterconnection Reliability Operating Limit (electricity)
IRPIntegrated Resource Planning
IRRInternal Rate of Return (finance)
ISOIndependent System Operator (US) (see also TSO) Responsible for grid management, but does not own assets. (electricity)
ISONE ISO New England, Inc. (electricity)
ISO-NEIndependent System Operator of New England, a Regional Transmission Organization. (US) (electricity)
ISSInterruptible Sales Service
ITInterruptible 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)
ITCInvestment tax credit (policy)
ITSInterruptible 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)
JRCJoint Research Centre
JRECJohannesburg Renewable Energy Coalition
koeOne kilogram oil equivalent (EU) (measurement)
kVKilovolt (one thousand volts) (measurement)
KVAOne thousand volt Ampere (measurement)
K-valuethermal conductance
kvarone thousand vars (measurement)
KwKilowatt (one thousand watts) (measurement)
KWEkilowatt electric (measurement)
kWhKilowatt hour (one thousand watt hours) (measurement)
LaaRLoad acting as a resource (ERCOT category) (electricity)
LBNLLawrence Berkeley National Laboratory (US)
LDCLocal Distribution Company (electricity)
LEEDLeadership in Energy and Environmental Design, standard for Green Building design
LEVPLow Emissions Vehicle Program
LHVlower heating value
LIHEAPLow Income Home Energy Assistance Program
LIPALong Island Power Authority (US) (electricity)
LMPLocational marginal price/pricing. See explanation in electricity markets.
LNGLiquified Natural Gas
LODFLine Outage Distribution Factor (electricity)
LOLELoss of Load Expectation (electricity)
Low-elow emissivity
LPGliquefied petroleum gas
LPNLender Participation Notes