A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
AC – Alternating current
ADB – Asian Development Bank
Ag – Agriculture
ASEAN – Association of Southeast Asian Nations
AWEA – American Wind Energy Association
BIG – Biomass gasifier
BOO – Build, Own and Operate
BOT – Build, Own and Transfer
BTU – British thermal unit (unit of heat)
C – Centigrade
CABEI – Central American Bank for Economic Integration
CAN – National water commission of Mexico
CCS – Combined cycle system
CDM – Clean Development Mechanism (part of Kyoto Protocol)
CEPALCO – Cagayan Electric Power Light Company Inc. (Philippines)
CER – Certified Emission Reduction
CF – Capacity factor
CHP – Combined heat and power
CO2 – Carbon dioxide (CO2e – carbon dioxide equivalent)
COC – Carbon Offset Credits
CPV – Concentrating photovoltaics
CSP – Concentrating solar power
DC – Direct Current
DOE – US Department of Energy (or USDOE)
EE – Energy efficiency
EGS – Enhanced geothermal systems
EIA – US Energy Information Agency
EJ – Exajoules (a measure of energy)
EPC – Engineering, Procurement and Construction (contract for a project)
EPRI – Electric Power Research Institute (US)
EU – European Union
EWEA – European Wind Energy Association
F – Fahrenheit
FBS – Fluidized bed combustor system
FERC – US Federal Energy Regulatory Commission
FIT – Feed-in tariff
GEF – Global Environmental Facility (part of the World Bank)
GHG – Greenhouse gas
GIS – Geographic Information Service
GT – Gas turbine
GVW – Gross vehicle weight
GW – Gigawatt (one billion watts, or one thousand megawatts or one million kilowatts)
GWh – Gigawatt hour
GWEC – Global Wind Energy Council
IC – Installed capacity
ICE – Costa Rican government utility
IDB – Inter-American Development Bank
IDC – Interest on capital during construction
IEA – International Energy Agency
IFC – International Finance Corporation (affiliated with the World Bank)
IEEE – Institute of Electrical and Electronics Engineers
IGCC – Integrated gasification combined cycle
IPP – Independent power producer
IPR – Intellectual property rights
IRR – Internal rate of return
ISCCS – Integrated solar combined cycle system
ISO – International Standards Organization
ITC – Investment tax credit
kg – Kilograms
km – Kilometer (km2 – square kilometer)
kW – Kilowatt (one thousand watts)
kWh – Kilowatt hour
lb – Pound
LBNL – Lawrence Berkeley National Laboratory (US federal laboratory)
LFG – Land-fill gas
LLC – Limited Liability Company (US)
M – Million
m – Meter
m2 – Square meter (m3 – cubic meter)
m/s – Meter per second
MACRS – Modified Accelerated Cost Recovery System (US)
MAE – Mean annual energy
MIRR – Modified internal rate of return
MNES – Ministry of Non-conventional Energy Sources (India)
MP – Mean power output
MRC – Mekong River Commission
MSW – Municipal solid waste
MW – Megawatt (One million watts, or one thousand kilowatts)
MWe – Megawatt electric (as opposed to MWth – megawatt thermal – most often used as clarification when comparing technologies that could be measured either way)
MWh – Megawatt hour
NA – Not Applicable (does not apply to this example)
NASA – US National Aeronautics and Space Administration
NASA/SSE – NASA Surface Meterology and Solar Energy (satellite data)
NFFO – UK Non-Fossil Fuel Obligation
NG – Natural gas
NGO – Non-governmental organization
NOx – Oxides of nitrogen
NREL – US National Renewable Energy Laboratory
OECD – Organization for Economic Co-operation and Development
O&M – Operation and maintenance
ORC – Organic Rankine cycle
PBF – Public Benefits Fund (also sometimes called PGC – Public Goods Charge)
PG&E – Pacific Gas and Electric (California utility)
PMF – Probable maximum flood
PPA – Power purchase agreement
Proinf – Brazil Incentive Program for Alternative Electric Generation
PURPA – Public Utility Regulatory Policies Act (US)
PTC – Production tax credit
PV – Photovoltaic
R&D – Research and Development
RD&D – Research, Development and Demonstration
RE – Renewable energy
REC – Renewable Energy Certificate or Credit (the same as a TREC)
REN21 – Renewable Energy Network for the 21st Century
RES – Renewable energy standard
RO – UK Renewable Energy Obligation
ROCS – UK Renewable Energy Obligation Credits
RPS – Renewable Portfolio Standard
SCE – Southern California Edison (California electric utility)
SIDS – Small Island Developing States
SOx – Sulfur oxides
SRC and DeNOx – Selective catalytic reduction devices
TBM – Tunnel boring machine
TES – Thermal energy storage
TREC – Tradable Renewable Energy Certificates/Credits (also sometimes referred to as REC)
TW – Terawatt (one trillion watts, one thousand megawatts, or one billion kilowatts)
TWh – Terawatt hour
UNDP – United Nations Development Programme
UNEP – United Nations Environmental Programme
UNFCC – United Nations Framework Convention on Climate Change
USAID – US Agency for International Development
USDA – US Department of Agriculture
W – Watt
WB – World Bank
WWTP – Waste Water Treatment Plants
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Last updated: December 15, 2009
EnergyToolbox.org represents material developed by USAID and reference materials drawn from public and private sources and agencies, and may be considered “work in progress.” All price and performance data contained in this toolkit are from publicly available sources and are intended to be used as general information and for relative comparisons of generating options. They do not represent actual cost or performance data for any specific project and should not be relied upon for other than general instructive purposes. The views expressed in any of the materials in this toolkit do not necessarily reflect the views of the United States Agency for International Development or the United States Government.