Acronyms

View NREL’s most common acronyms and their definitions in the table below.  

Acronym Term

A2LA

American Association for Laboratory Accreditation

A

ampere

AACG

American Association for Crystal Growth

AALA

American Association for Laboratory Accreditation

ABA

American Bioenergy Association

ABB

Asea Brown Boveri

ABE ferm

acetone-butanol-ethanol fermentation

ABEC

Associated Bioengineers and Consultants

ABO

air base operability

ABR

anaerobic baffled reactor

AC

air conditioning

alternating current

ACC

acetyl-CoA carboxylase

ACCA

Air Conditioning Contractors of America

ACCase

acetyl-CoA carboxylase

ACCG

American Conference on Crystal Growth

ACE

acetyl cellulose esterase

American Coalition for Ethanol

ACEC

American Consulting Engineers Council

ACEEE

American Council for an Energy-Efficient Economy

acfm

actual cubic feet per minute

ach

air changes per hour

ACI

asset condition index

ACRES

Advanced Component Research Facility

ACS

American Chemical Society

ACTF

Advanced Component Test Facility (Georgia Institute of Technology)

ACWA

American Clean Water Association

AD

anaerobic digestion

ADAM

ADvanced Automotive Manikin

ADAMS

Automated Dynamic Analysis of Mechanical Systems (computer code)

ADAS

advanced data acquisition system

ADCC

advanced direct-contact condenser

ADEPT

Assisting the Deployment of Energy Practices and Technologies

ADH

alcohol dehydrogenate

ADL

A. D. Little Co.

ADM

Archer Daniels Midland

ADMS

advanced distribution management system

AD-MSS

anaerobically digested municipal sewage solids

ADPI

Air Diffusion Performance Index

ADVS

analog design verification system

ADVISOR

Advanced Vehicle Simulator

AE

acoustic emissions

A/E

architectural/engineering

AEA

Alaska Energy Authority

AEC

U.S. Army Environmental Command

AEDOT

Advanced Energy Design and Operations Technology

AEE

Association of Energy Engineers

AEI

Advanced Energy Initiative

Alternative Energy Institute

AEP

annual energy production

AES

Atmospheric Environment Service

auger electron spectroscopy

AESP

Association of Energy Service Professionals

A-factor

diode factor

AF

alternative feedstocks

Architects Foundation

AFCESA

Air Force Civil Engineer Support Agency

AFDC

Alternative Fuels Data Center

AFDW

ash-free dry weight

AFEX

ammonia freeze explosion

AFM

atomic force microscopy

AFP

Alternative Feedstocks Program

AFPA

American Forest and Paper Association

AFRD

Alternative Fuels Research and Development (Program)

AFUE

annual fuel utilization efficiency

AFUF

Alternative Fuels User Facility

AFUP

Alternative Fuels Utilization Program

AFV

alternative fuel vehicle

AGA

American Gas Association

AGMA

American Gear Manufacturers Association

AGREA

Analysis Group for Regional Electricity Alternatives

AGT

Advanced Garrett Turbine

AHAC

active heating and cooling

AHS

ammonia hydrogen sulfate

AIA

American Institute of Architects

AIAA

American Institute of Aeronautics and Astronautics

AIA/RF

American Institute of Architects Research Foundation

AIC

Advanced Industrial Concepts, Inc.

aluminum-induced crystallization

Air Conditioning, Heating and Refrigeration Institute

AIChE

American Institute of Chemical Engineers

AIP

American Institute of Physics

AIRR

adjusted internal rate of return

AIVC

Air Infiltration and Ventilation Centre

ALP

anemometer loan program

ALS

acetolactate synthase

AM

air mass

AMFA

Alternative Motor Fuels Act (of 1988)

AMP

adenosine monophosphate or adenylic acid

AMPP

Advanced Materials Processing Program

AMPSA

2-acrylamido-2-methyl-1-propane sulfonic acid

AMS

American Meteorological Society

AMTEXJ

American Textile Partnership

amu

atomic mass units

ANL

Argonne National Laboratory

ANOVA

analysis of variance

ANSI

American National Standards Institute

AOC

Atlantic Orient Corp.

AOCS

atmospheric optical calibration system

AOSS

automated office support system

AOP

annual operating plan

APD

antiphase domain

APEC

Asia-Pacific Economic Cooperation

API

American Petroleum Institute

APP

alternative power producer

APPA

American Public Power Association

APL

Applied Physics Laboratory

APR

advanced pyrolysis reactor

APRAC

Air Pollution Research Advisory Committee

APRR

active program research requirement

APS

Advanced Photovoltaic Systems

American Physical Society

Arizona Public Service Co.

APTA

American Public Transportation Association

APU

auxiliary power units

APUP

Alliance Partner University Program

AQ

anthraquinone

AQIRP

Air Quality Improvement Research Program

AR

antireflective

AR&D

advanced research and development

ARB

Air Quality Review Board
Architectural Review Board

ARC

accelerating rate calorimeter
advanced rotary compressor

ARCS

Atmospheric Radiation and Clouds Station

ARE

active reactive evaporation

ARES

Automated Residential Energy Standard

ARL

Atmospheric Research Laboratory

ARM

adjustable rate mortgage

ARS

Agricultural Research Service

ARRI

Automation and Robotics Research Institute

ART

advanced research turbines

ASCS

Advanced Stirling Conversion System

ASD

Adjustable-speed drive

Analytic Studies Division

ASE

Alliance to Save Energy

ASEAN

Association of Southeast Asian Nations

ASEC

Applied Solar Energy Corp.

ASEE

American Society for Engineering Education

ASERTTI

Association of State Energy Research and Technology Transfer Institutions

ASES

American Solar Energy Society

ASHRAE

American Society of Heating, Refrigerating, and Air-Conditioning Engineers; do not spell out

a-Si

amorphous silicon

ASL

acid-soluble lignin

ASM

American Society of Microbiology

ASME

American Society of Mechanical Engineers

ASMS

American Society of Mass Spectrometry

ASOS

automated surface observing system

ASP

Aquatic Species Program

ASPEN

advanced simulator for process engineering

ASR

autoshredder residue

ASRC

Atmospheric Sciences Research Center

ASRM

advanced solar reflective mirror

ASRP

Amorphous Silicon Research Project

ASSET

analysis of state energy trade-offs databank

ASTF

Alaska Science and Technology Foundation

ASTM

ASTM International (do not spell out ASTM)

ASU

Arizona State University

ATA

American Trucking Associations

ATCC

American-type culture collection

ATD-CCM

Automotive Technology Development–Contractor's Coordination Meeting

ATDD

Atmospheric Turbulence and Diffusion Division

ATF

alternative transportation fuels

ATM

Advanced Technology Materials Inc.

ATP

adenosine triphosphate

ATRA

Advanced Transit Association

A&TT

Applications and Technology Transfer

ATV

advanced technology vehicle

AUI

asset utilization index

AVC

auger voltage contrast

AVF

Alternative Vehicle Forum

AVG

Advanced Vehicles Group

AVS

American Vacuum Society

AWEA

American Wind Energy Association

AWT

advanced wind turbine

Advanced Wind Turbines, Inc.

AWMA

American Waste Management Association

AWU

Association of Western Universities

AWWA

American Water Works Association

AXE

acetyl xylan esterase

BA

budget authorization

BAA

Broad Agency Announcement

BAE

Building Area Engineer

BAO

Boulder Atmospheric Observatory

BASF

company name; do not spell out

BATF

Bureau of Alcohol, Tobacco, and Firearms

BC

biochemical conversion

BCA

bicinchoninic acid

BCCL

Biomass Chemical Characterization Laboratory

BCPDU

Biochemical Process Development Unit

BCRF

Biological and Chemical Research Facility

BCS

beam characterization system
Buildings and Community Systems

BCTR

Biological and Chemical Technologies Research (Program)

BDC

Bioenergy Development Corp.

b-dRDF

binder-enhanced densified refuse-derived fuel

BEC

Building Emergency Coordinator

BEEP

Best of Energy Efficiency Program

BERA

Biomass Energy Research Association

BERD

building energy research and development

BES

Basic Energy Sciences

BEST

Bioengineering Simulation Technology

BESTEST

Building Energy Simulation Test

BET

Brunauer-Emett-Teller

BETD

Biomass Energy Technology Division

BEVA

building element vector analysis

BEW

Behnke, Erdman & Whitaker Engineering

BESS

battery energy storage system

BGF

Biomass Gasification Facility

BGSUF

Biomass Gasifier Scale-Up Facility

BGVJ

back-grooved vertical junction cells

BIPV

building-integrated photovoltaics

BLC

building load coefficients

BLM

Bureau of Land Management

BMI

Basic Measuring Instruments

BMP

biochemical methane potential biological methane potential

BMTDC

Biobased Materials Technology Development Center

BMS

building management systems

BMWT(D)

Biofuels and Municipal Waste Technology (Division)

BNL

Brookhaven National Laboratory

BOA

basic ordering agreement

BOD

biological oxygen demand

BOMA

Building Owners and Managers Association

BOPD

barrels of oil per day

BOR

Bureau of Reclamation

BORCAL

broad band outdoor radiometer calibration

BOS

balance of systems

BPA

blanket purchase agreement
Bonneville Power Administration

BPCL

Biobased Polymer and Composites Laboratory

BQ

benzoquinone

B&R

budget and reporting code

BSA

bovine serum albumin

BSC

Basic Sciences Center

BSD

Biofuels Systems Division

BSF

back surface field

BSR

back surface reflector

BST

building-specific training

BTDC

before top dead center

BTECC

Building Thermal Envelope Coordinating Council

BTEX

benzene, toluene, ethylbenzene, xylene

BTF

Blade Test Facility

BTRF

Biotechnology Research Facility

Btu

British thermal unit

BTX

benzene, toluene, xylene

BU

Boston University

BWEA

British Wind Energy Association (now called RenewableUK)

C2B2

Colorado Center for Biorefining and Biofuels

CA

cellulose acetate

CAAA-90

Clean Air Act Amendments of 1990

CAB

cellulose acetate butyrate

CACS

Commercial and Apartment Conservation Service

CAD

computer-aided design

CADCO

company name; do not spell out

CADD

computer-assisted design and drafting

CADDET

Center for the Analysis and Dissemination of Demonstrated Energy Technologies

CAE

computer-aided engineering

CAER

Center for Applied Energy Research (University of Kentucky)

CAFE

corporate average fuel economy

CAFI

Consortium on Applied Fundamentals and Innovation

C-AFM

conductive atomic force microscopy

CAIS

Condition Assessment Information System

CALSEIA

California Solar Energy Industries Association

Caltech

California Institute of Technology

c-AMP

cyclic-AMP

CAN

controller area networks

CANMET

Canadian Center for Mineral and Energy Technologies

CANWEA

Canadian Wind Energy Association

CAP

cellulase acetate propionate

CARB

California Air Resources Board
Consortium for Advanced Residential Buildings

CAREIRS

Conservation and Renewable Energy Inquiry and Referral Service

CARES

Conservation and Renewable Energy System

CARS

Coherent Anti/Stokes Raman spectroscopy

CAS

condition assessment survey

CASH

Canadian, American, Swedish Hydrolysis

CAT

Chemical Analysis and Testing (task name)

CATI

Colorado Advanced Technology Institute

C/B

catalyst/biomass

CBC

circuit breaker control

CBD

chemical bath deposition
Commerce Business Daily

CBI

Chicago Bridge and Iron

CBH

cellobiohydrolase

CC

closed cycle

CCAP

Center for Clean Air Policy Climate Change Action Plan

CCC

Collaborative Consensus Committee

CCD

capacitively coupled device

CCE

cost of conserved energy

CCEM

Colorado Center for Environmental Management

CCI

Community College Institute

CC/PT

combined-cycle power tower

CD

construction and demolition
critical decision

CDBG

community development block grant

CDC

Control Data Corp.

CDD

cooling degree-day

CDBG

community development block grant

CDOT

Colorado Department of Transportation

CDR

Conceptual Design Review

CDRR

conceptual design report revision

CdTe

cadmium telluride

CEC

California Energy Commission
Cargocaire Engineering Corp.

CEG

Clean Energy Group, Inc

CEM

continuous emission monitoring

CEO

chief executive officer

CEPEL

Centro de Pesquisas de Energia Elétrica (equivalent of EPRI in Brazil)

CEQ

Council on Environmental Quality

CER

carbon dioxide evolution rate

CERCLA

Comprehensive Response Compensation and Liability Act

CERL

Construction Engineering Research Laboratory (U.S. Army Corps of Engineers)

CERT

Council of Energy Resource Tribes

CESC

Colorado Energy Science Center

CET

Center for EcoTechnology

CF

capacity factor

CFC

chlorofluorocarbon

CFCC

continuous fiber ceramic component

CFD

computational fluid dynamics
cumulative frequency distributions

CFFV

clean fuel fleet vehicle

CFL

compact fluorescent lighting

cfm

cubic feet per minute

CFR

code of federal regulations

Consolidated Fuels Research

CFRD

contract-funded research and development

CFTP

Cooperative Field Test Program

CFTT

contract-funded technology transfer

CFV

clean fuel vehicle

CGI

controllable grid interface

CGS

copper gallium diselenide

CHESF

(equivalent of Bonneville Power Administration in northeastern Brazil)

CHIL

controller-hardware-in-the-loop

CHP

combined heat and power

CH-OIP

Chicago Office of Intellectual Property

CHP

combined heat and power

CHPC

combined heat, power, and cooling plant

CID

collision-induced dissociation

CIDI

compressed-ignition direct-injection

CIFAR

California Institute for Foods and Agricultural Research

CIFER

Colorado Institute for Fuels and Engine Research

CIGS

CuInGaSe2 (copper indium gallium diselenide)

CIGSS

CuInGaSSe2 (copper indium gallium sulfur selenide)

CIP

continuation in part

CIR

collision induced reaction

CIRB

Colorado Institute for Research and Biology

CIRES

Cooperative Institute for Research in Environmental Science

CIS

CuInSe2 (copper indium diselenide)

CIT

continuous improvement team

CL

cathodoluminescence
coefficient of lift

CLEFT

cleavage of lateral epitaxial film for transfer

CLF

Conference and Learning Facility (STM Site)

CLOUT

Coalition for Learning Opportunity and United Tutors

CMAQ

Congestion Mitigation and Air Quality Development Program

CMB

Chemical Mass Balance (receptor model)

CMC

carboxymethyl cellulose
Colorado Mountain College

CMCase

carboxymethyl cellulase

CMFERT

Collaborative Manufacturing Buildings Facility for Energy Research and Testing

CMR

continuous-flow microreactor system

CMS

compatible molten salt

CMTF

Collector Module Test Facility (Sandia National Laboratories)

CMU

Carnegie-Mellon University

CMWC

Consolidated Mutual Water Company

CN

cetane number

CNG

Colorado National Guard
coherent optical
compressed natural gas

C-NMR

carbon-nuclear magnetic resonance

C/N ratio

carbon/nitrogen ratio

CNT

carbon nanotube

CO2

carbon dioxide

CO

carbon monoxide
critical outcome

COD

chemical oxygen demand

COE

cost of energy

COMMEND

commercial end-use

CONEG

Council of Northeastern Governors

CONFRRM

Cooperative Network for Renewable Resource Measurements

CONUS

Continental United States or Contiguous United States (see separate Style Guide entry for details)

COP

coefficient of performance

CORECT

Committee on Renewable Energy Commerce and Trade

COSE

cost of saved energy

COTS

commercial off the shelf

CPFF

cost plus fixed fee

CPG

Cummins Power Generation Inc.

CPI

Consumer Price Index

CPM

communications processing module
constant photocurrent method
critical path method

CP/MAS

cross-polarization magic angle spinning

CPS

capsular polysaccharide
Corporate Planning System

CPUC

California Public Utilities Commission

CPV

concentrating photovoltaics

CR

central receiver

CRADA

cooperative research and development agreement

CRC

Coordinating Research Council

CRD

contractor requirements document

CREC

Colorado Renewable Energy Collaboratory

CREED

Colorado Renewable Energy and Economic Development Facility

CREF

Colorado Renewable Energy Forum

CREST

Center for Renewable Energy and Sustainable Technology

CREW

Center for Research and Education in Wind

CRP

Conservation Reserve Program
cooperative research program

CRS

central receiver system
certified realty specialist

CRSP

Center for Revolutionary Solar Photoconversion

Csave

cost of saved energy

CSB

Colorado Science Bowl

CSCVT

close-space chemical vapor transport

CSDS

Concentrating Solar Deployment System

CSEN

Colorado Science Education Network

c-Si

crystalline silicon

CSIRO

Commonwealth Scientific and Industrial Research Organization

CSL

corn steep liquor

CSMRI

Colorado School of Mines Research Institute

CSO

Cognizant Secretarial Office

CSP

concentrating solar power

CSR

Climatological Solar Radiation

CSS

close-spaced sublimation

CSSA

cellulose sulfate sodium salt

CST

Central Solar Technology (DOE)

CSTR

continuous stirred tank reactor

CSTRR

Corporation for Solar Technologies and Renewable Resources

CSVT

close-space vapor transport

CSW

corn steep water

CT

combustion turbine
current transformer

CTA

cellulose triacetate

CTAA

Community Transportation Association of America

CTE

coefficient of thermal expansion

CTI

Climate Technology Initiative

CTRF

Central Receiver Test Facility

CU

University of Colorado

CURD

Crop Utilization Research Database

C-V

capacitance-voltage

CVC

Community Volunteer Connections

CVD

chemical vapor deposition

CVI

compact vacuum insulation

CVM

cluster-variation method

CVT

chemical/vapor transport

CW

continuous-wave

CWA

Clean Water Act

CWMI

Cornell Waste Management Institute

CWP

cold water pipe

CY

calendar year

CZ

Czochralski

D&R

company name; do not spell out

DAB

Design Advisory Board

DAC

Design Assistance Center

DAR

direct absorption receiver

DARPA

Defense Advanced Research Projects Agency

DARTS

direct absorption receiver and thermal storage

DACS

data acquisition and control system

DAS

data acquisition system

DAS-RE

Deputy Assistant Secretary, Renewable Energy

DAWT

diffuser-augmented wind turbine

DBOM

dual-beam optical modulation

DBT

dibenzothiophene

DC

direct current

DCA

dicarboxylic acid

DCAA

Defense Contracting Auditing Agency

Department of Cost and Accounting Audit

DCB

dichlorobenzene

DCC

direct-contact condenser

DCE

dichloroethylene

DCFROR

discounted cash flow/rate of return

DCHX

direct-contact heat exchanger

DCS

distributed collector system

DDGS

distillers dried grains with solubles

DDRD

Director's Discretionary Research and Development

DFMA

design for manufacture and assembly

DE

destruction efficiency

distributed energy

DEAE

diethylaminoethyl

DEER

Distributed Energy and Electric Reliability

DEGC

diethylgallium chloride

DEGREES

Dynamic Energy and Greenhouse Emissions Evaluation System

DEG/SE

Davis Energy Group/SunEarth

DETL

Distributed Energy Technologies Laboratory

DEMP

Departmental Energy Management Program

DEP

Department of Environmental Protection

diethylphthalate

DERMS

distributed energy resource management system

DER

distributed energy resource

DEWI

(German Wind Energy Institute)

DFMA

design for manufacture and assembly

DFMECA

design failure mode effects and criticality analysis

DFSS

dedicated feedstock supply system

DFV

digital functional vehicle

DFR

design for reliability

DG

distributed generation

DGAP

data gathering and processing

DHC

district heating and cooling

DHE

dynamic hydrogen electrode

DHS

dehydroshikimic acid

DHW

domestic hot water

DI

deionized

DING

direct injection natural gas

DJ

dual junction

DLTS

deep level transient spectroscopy

DLR

German Aerospace Center

DM

deutschmarks

DMA

data, modeling, and analysis

DMBQ

2,6-dimethoxybenzoquinone

DMC

direct microbial conversion

DME

dimethyl ether

DMME

Department of Mines, Minerals and Energy (State of Virginia)

DMSO

dimethyl sulfoxide

DMT

dimethyl terephthalate

DNA

Defense Nuclear Agency

deoxyribonucleic acid

DNB

departure from nucleate boiling

DNNA

Daylighting Network of North America (now called the Daylight Institute)

DNS

dinitrosalicylic acid

DNI

direct normal incident

DO

dissolved oxygen

DOC

U.S. Department of Commerce

DOD

U.S. Department of Defense

DOE

U.S. Department of Energy

DOE CH

DOE Chicago Operations Office

DOE EH

DOE Environment, Safety, and Health

DOE EM

DOE Environmental Restoration and Waste Management

DOE FE

DOE Fossil Energy

DOE HQ

DOE Headquarters

DOE RFO

DOE Rocky Flats Office

DOE SAN

DOE San Francisco Site Office

DOH

U.S. Department of Housing

DOS

density of states

DOT

U.S. Department of Transportation

DP

distributed power

DPP

Distributed Power Program

DQMS

data quality management system

dRDF

densified refuse-derived fuel

DRE

destruction and removal efficiency

DRI

Data Resources Inc.

Desert Research Institute

DRIFT

diffuse reflectance infrared Fourier transform

DS

degree of substitution

DSA

diafiltration saccharification assay

DSC

differential scanning calorimeter

DSE

degree of synergistic effect

DSET

DSET Laboratories; not an acronym, do not spell out

DSM

demand-side management

DSP

digital signal processor

DSMTI

Demand-Side Management Training Institute

DTA

differential thermal analysis

dtPD

dry tonne per day

dTPD

dry ton per day

DTS

differential transmittance spectra

DUV

Distributed Utility Valuation

DVM

digital voltmeter

DWEA

Distributed Wind Energy Association

DWS

desktop workstation

EA

environmental assessment

EAC

estimate at completion

EADC

Energy Analysis and Diagnostic Center

EAO

Energy Analysis Office

EASA

Electrical Apparatus Service Association

EAWAG

(Swiss Federal Institute for Environmental Science and Technology)

EB

electron beam

EBIC

electron beam induced current

EBIV

electron beam induced voltage

EBSD

electron backscatter diffraction

EC

European Community

ECD

electron capture detector

ECM

electronic control module

ECN

(Netherlands Energy Research Foundation)

ECP

energy conversion panel

ECR

electron cyclotron resonance

ECRE

U.S. Export Council for Renewable Energy

ECS

Electrochemical Society

ECUT

Energy Conversion and Utilization Technologies

ECW

electrochromic windows

EDAX

energy dispersive analysis by x-ray

EDF

Environmental Defense Fund

EDS

Electronic Data Systems
energy dispersive

EDU

engineering development unit

EEAD

Energy and Environmental Analysis Division

EEBA

Energy Efficient Building Association

ECC

environmental concept car

EEC

European Economic Community

EEEDAL

ethanol-extracted explosively depressurized aspen lignin

EEI

Edison Electric Institute

EELS

electron energy loss spectroscopy

EEM

energy-efficient mortgages

EER

electrolyte electroreflectance

energy and environmental research

energy efficiency ratio

EERE

Office of Energy Efficiency and Renewable Energy

EERRN

Enhanced Energy Recovery and Refining News

EES

Energy Extension Service

EESE

ethanol-extracted, steam-exploded (aspen)

EESI

Environmental and Energy Study Institute

EFD

electrofluid dynamic (Wind Energy System)

EFG

edge-defined, film-fed growth

Eg

bandgap energy

EG I

endoglucanase I

EGEAS

electric generation expansion analysis system

EGR

exhaust gas recirculation

EGS

enhanced or engineered geothermal system

EGUMS

electric and gas utilities modeling system

EH

Environment, Safety, and Health (DOE)

EHP

Electric Hybrid Propulsion

EH&S

environmental health and safety

EIA

Energy Information Administration

EIES

electron impact emission spectroscopy
Electronic Information Exchange System

EIR

Environmental Impact Report

EIS

Environmental Impact Statement

EL

electroluminescence

ELH

a type of lamp used in solar simulators and projects; not an acronym, do not spell out

ELISA

enzyme-linked immunosorbent assay

EM

Office of Environmental Restoration and Waste Management (DOE)

EMA

Engine Manufacturers’ Association

EMAP

energy master action plan

EMAP

energy map

EMB

eutectic metal bonding

EMD

Electronic Materials Division
electronic materials and devices

EMF

Energy Modeling Forum

EMI

elecromagnetic interference

EMMA

equatorial mount with mirrors for acceleration

EMP

Embden-Meyerhof-Parms (pathway)

EMT

emerging module technology

ENEA

Italian National Agency for New Technologies, Energy and the Environment

ENR

Energy and Natural Resources

EP

emissions parameter

EPA

U.S. Environmental Protection Agency

EPAC

Ethanol Producers and Consumers

EPA-ORD

Environmental Protection Agency – Office of Research and Development

EPA/RTP

Environmental Protection Agency/Research Triangle Park

EPAct

Energy Policy Act

EPC

Engineer, Procure, Construct

Epi-fz

epitaxial float-zoned

EPMA

electron probe microanalysis

EPP

Enterprise Project Planning

EPR

use acronym; do not spell out

EPRE

Ente Provincial Regulador Energetico (Argentina)

EPRI

Electric Power Research Institute

EPS

electrochemical photocapacitance spectroscopy
environmental portfolio standard
exopolysaccharide

EPV

Energy Photovoltaics

ER

electric reliability
Office of Energy Research (DOE)

ERC

Energy Research Corp.
Environmental Research Consortium

ERCIP

Energy Resilience and Conservation Investment Program

ERDA

Energy Research and Development Administration

ERG

Energy Research Groups, International

ERHA

Energy Rated Homes of America

ERIP

Energy Related Inventions Program

ERTA

Energy Recovery and Tax Act (1981)

ERULF

Energy Research Undergraduate Laboratory Fellowship (DOE)

ERV

energy recovery ventilator

ESCA

electron spectroscopy for chemical analysis

ESCO

energy services company

ESD

electron stimulated desorption

ESG

Energy Systems Group (Rockwell International)

ES&H

Environment, Safety, and Health

ESH&Q

Environmental, Safety, Health, and Quality

ESI

energy systems integration (as a general area of study)

ESIF

Energy Systems Integration Facility

ESM

energy system monitoring

ESP

edge-supported pulling
electric service provider
electrostatic precipitator

ESPC

energy savings performance contract

ESR

electron spin resonance

ESST

Engine Support System Technology

ETBE

ethyl tertiary butyl ether

ETC

Energy Technology Conference

ETCE

Energy Technology Conference and Exhibition

ETEC

Energy Technology and Engineering Center (a division of Rockwell)

ETI

Environmental Technology Initiative

ETMY

estimated typical meteorological year

EtOAc

ethyl acetate

EtOH

ethanol

ETR

exploratory technology research

ETS

Edwards Test Stations (Jet Propulsion Laboratory)

EUL

enhanced use leasing

EV

electric vehicle

EVA

ethylene vinyl acetate

EVMS

Earned Value Management System

EVTECA

electric vehicle total energy cycle analysis

EWG

Evaluation Working Group
exempt wholesale generator

EXAFS

extended x-ray absorption fine structure

EX-IM

U.S Export-Import Bank

EYH

Expanding Your Horizons (event/program)

FAA

Federal Aviation Administration

FAC

FIMS Advisory Committee

FACC

Ford Aerospace and Communications Corp.

FACT

Field Assessment Coordinating Team

FAME

fatty acid methyl ether

FAQ

frequently asked question

FAR

Federal Acquisition Rules

FAS

flow angle sensors

FAST

Fatigue, Aerodynamics, Structures, and Turbulence
fixed abrasive sawing technique

FBC

fluidized-bed combustion

FBP

Federal Bureau of Prisons

FC

flow controller

fcc

face-centered cubic

FCC

fluid cracking catalyst

FCI

Facility Condition Index
Federal Corrections Institute
fixed capital investment

FCV

fuel cell vehicle

FCVT

FreedomCAR and Vehicle Technologies (Program)

FDRS

financial data and reporting system

FE

fossil energy

FEA

finite-element analysis

FECS

fire-expanded clay sphere

FEEF

Federal Energy Efficiency Fund

FEM

finite element model

FEMA

Federal Emergency Management Agency

FEMP

Federal Energy Management Program

FEP

fluorinated ethylene propylene

FERC

Federal Energy Regulatory Commission

FERCO

Future Energy Resources Corp.

FETA

Field Experiment Test Area

FF

fill factor

FFPT

fixed focal point trough

FFRDC

federally funded research & development center

FFV

flexible-fuel vehicle

FHA

Federal Housing Administration

FHWA

Federal Highway Administration

FIB

focused ion beam

FID

flame ionization detector (for hydrocarbons)

FIMS

Facilities Information Management System

FIRST

Facility for Integrated Renewable Systems Testing
Fostering Innovation, Research, and Strategic Technologies

FLAP

Force and Loads Analysis Program

FLC

Federal Laboratory Consortium

FLEX

Federal Lighting Energy EXpert

FM

flow meter

FMDF

fixed mirror, distributed focus

FMVSS

Federal Motor Vehicle Safety Standards

FmHA

Farmers Home Administration

FOA

Funding Opportunity Announcement

Fob

fuel on board

FOG

fat, oil, and grease

FONSI

Finding of No Significant Impact

FOUP

Front-Opening Unified Pod

FPA

filter paper activity

FPG

Fuels Performance Group

FPIP

Federal Project Implementation Partnership

FPRP

Fats and Protein Research Foundation

FPTF

Facilities Planning Task Force

FPU

filter paper units

FR

flame retardant

FREE

financial residential energy efficiency

FREScA

Federal Renewable Energy Screening Assistant

FRI

Federal Relighting Initiative

FRP

fiberglass reinforced plastic

FSA

flat plate solar array

FSEC

Florida Solar Energy Center

FSLR

fast solar load ration

FSP

federal standby plan (or program)

FSTA

full-scale test article

FTC

Federal Trade Commission

FTE

full-time equivalent

FTIR

Fourier transform infrared (used with spectroscopy)

FTLB

Field Test Laboratory Building

FTLF

Field Test Laboratory Facility

FT-NMR

Fourier transform-nuclear magnetic resonance

FTP

federal test procedure
Federal Test Program
field task package
file transfer protocol

FWDC

Foster Wheeler Development Corp.

FWP

field work proposal

FY

fiscal year

FZ

float zone

GA

general atomic

G&A

general and administrative

GAO

General Accounting Office

GATT

General Agreement on Trade and Tariffs

GB

grain boundary

GC

gas chromatograph

GC/MS

gas chromatograph/mass spectroscope

GC/MSD

gas chromatograph/mass spectrometer detector

GDC

Green Data Center

GDO

Geothermal Drilling Organization

GDP

gross domestic product

GDV

General Development Vision

GE

General Electric

GEA

Geothermal Energy Association

GE-AED

General Electric Co. Advanced Energy Department

GE-SCD

General Electric Co. Simulation and Controls Department

GEBA

Global Energy Budget Archive

GECF

Geothermal Energy Conversion Facility

GEEREF

Global Energy Efficiency and Renewable Energy Fund

GEF

Global Environment Facility

GER

Geophysical Environmental Research

GFI

gaseous fuel injection

GFO

Golden Field Office

gge

gasoline gallon equivalent

GHG

greenhouse gas

GHP

geothermal heat pump

GHPC

Geothermal Heat Pump Consortium

GIDAS

Geographical Information Data Analysis System

GIS

geographic information system

GIT

Georgia Institute of Technology

GMI

Grid Modernization Initiative

GMLC

Grid Modernization Laboratory Consortium

GMP

general management plan

GMS

gas management system

GMT

Greenwich Mean Time

GNP

gross national product

GOES

Geostationary Operational Environmental Satellite

GOSI

General Organization for Social Insurance

GPC

gel permeation chromatography
generator power control

GPE

general plant equipment

GPI

General Purpose Investment
Glass Packaging Institute
Golden Photon Inc.

GPO

U.S. Government Publishing Office

GPP

general post processor

GPP/GPE

general plant project/general purpose equipment

GPP/LI

general plant project and line item construction

GPRA

Government Performance Results Act

GPT

gas phase titration

GPW

GeoPowering the West

GRAS

generally regarded as safe

GRC

Geothermal Resources Council

GRG

Grassroots Giving

GRI

Gas Research Institute

GRP

glass-reinforced plastic

GSA

U.S. General Services Administration

GSE

Global Solar Energy

GSF

gross square feet

GSHP

ground source heat pump

GSIP

Government Solar Installation Program

GSO

goods and services on order

GTC

generator test cell

GTI

Gas Technology Institute

GTO

Geothermal Technology Organization

GTP

Geothermal Technologies Program

GTRI

Georgia Tech Research Institute

GTSF

Georgia Tech Solar Furnace

GUI

graphical user interface

GVW

gross vehicle weight

GW

gigawatt

GWP

global warming potential

H2S

hydrogen sulfide

HAC

hydroxyacetaldehyde

HALT

highly accelerated lifetime testing

HAWT

horizontal-axis wind turbine

HAZOP

hazard and operability

HBCU

Historically Black Colleges and Universities

HCE

heat collection element

HCFC

hydrochlorofluorocarbon

HCRF

Heat Cycle Research Facility

HCSC

hot carrier solar cell

HDD

heating degree-day

HDPE

high-density polyethylene

HDR

hot dry rock

HDV

heavy-duty vehicle

HEC

herbaceous energy crop

HECO

Hawaiian Electric Co.

HEEB

high-energy electron beam

HEM

heat exchanger method

HENMC

high-energy nickel, manganese, and cobalt cathode

HEPA

high-efficiency particle filter absolute

HERS

Hawaiian Electric Renewable Systems
Home Energy Rating Systems

HEV

hybrid electric vehicle

HEXA

hexamethylene tetramine

HFC

high-flux cavity

HFCIT

Hydrogen, Fuel Cell, and Infrastructure Technologies (Program)

HFSF

High-Flux Solar Furnace

HFSS

high-flux solar simulator

HGCU

hot-gas cleanup

HIBRP

Hawaii Integrated Biofuels Research Program

HIC

hydrophobic interaction chromatography

HID

high-intensity discharge

HIL

hardware-in-the-loop

HiPerf PV

High-Performance Photovoltaics Project

HIPSS

high-intensity pulsed solar simulator

HMF

hydroxyl-methyl-furfural

HMO

heat medium oil

HMTEA

Heat- and Mass-Transfer Experimental Apparatus

HMTSTA

Heat- and Mass-Transfer Scoping Test Apparatus

HNEI

Hawaii Natural Energy Institute

HOMER

Hybrid Optimization Model for Electric Renewables

HOST

Hawaii Ocean Science Technology

HOV

high-occupancy vehicle

HP

Hewlett Packard

HPAEC

high-performance anion exchange chromatography

HPC

high-performance computing

HP-DSC

high-pressure differential scanning calorimetry

HPLC

high-performance liquid chromatograph

HPP

high-pressure plasma

HPSEC

high-performance size exclusion chromatography

HPTB

Hybrid Power Test Bed

HQ

headquarters

HRII

High-Reliability Inverter Initiative

HRT

hydraulic retention time

HRTEM

high-resolution transmission electron microscopy

HRV

heat recovery ventilator

HSD

high-solids digester

HSL

hybrid solar lighting

HSPA

Hawaiian Sugar Planters’ Association

HSPF

heating seasonal performance factor

HTAP

Hydrogen Technical Advisory Panel

HTF

heat transfer fluid

HTIP

Hydrogen Technical Interagency Panel

HTML

High Temperature Materials Laboratory

HTR

high throughput reactor

HTS

high-temperature superconductor
high throughput screening

HTSC

high-temperature superconducting

HTTB

hybrid technology test bed

HUD

Housing and Urban Development

HVAC

heating, ventilating, and air conditioning

HVDC

high-voltage direct current

HVST

high-voltage stress test

HWCVD

hot-wire chemical vapor deposition

HWFET

highway fuel economy test

HWVE

hot-wall vacuum evaporation

IACS

Indian Association for Cultivation of Science

IADB

Inter-American Development Bank

IAEE

International Association for Energy Economics

IAG

industry average gasoline

IAP

indirect annual plan

IAQ

indoor air quality

IBACOS

Integrated Building and Construction Solutions

IBAD

ion-beam assisted vapor deposition

IBIS

International Biosynthetics (name of company)

IBMER

(Institute for Buildings, Mechanization, and Electrification of Agriculture) (Poland)

IBRF

Integrated Biorefinery Research Facilities

IC

integrated circuit

ICB

ionized cluster beam

ICE

industrial combustion equipment

ICEV

internal combustion engine vehicle

ICF Inc.

Company name; not an acronym

ICI

Imperial Chemicals Inc.

ICLEI

International Council for Local Environmental Initiatives

ICP

inductively coupled plasma
Institutional Conservation Program

ICPC

inductively coupled plasma concentrator
integrated compound parabolic curv

ICS

integrated collector storage

ICTMC

International Conference on Ternary and Multinary Compounds

ID

inside diameter

IDC

internal diameter clearance

IDIP

in-line diagnostics and intelligent processing

IDIQ

indefinite delivery, indefinite quantity (FEMP)

IDM

International Display Materials (company name)

IDMP

International Daylight Measurement Program

IEA

International Energy Agency

IEC

International Electrotechnical Commission
Institute of Energy Conversion

IECEC

Intersociety Energy Conversion Engineering Conference

IEEE

Institute of Electrical and Electronics Engineers

IEF

International Energy Foundation

IEP

Independent Energy Producer

IES

Illuminating Engineering Society

IFI

Integrated Facilities and Infrastructure

IFPU

international filter paper units

IGCC

integrated gasification and combined cycle
Interagency Geothermal Coordinating Council

IGES

inert gas exhaust system

IGMA

Insulating Glass Manufacturers Alliance

IGPP

Institutional General Plant Project

IHP

industrial heat pump

IIT

Illinois Institute of Technology
Indian Institute of Technology

IITRI

Illinois Institute of Technology Research Institute

ILEV

inherently low-emission vehicle

I/M

inspection/maintenance

IMA

impact-modified acrylic

IMEC

Interuniversity Microelectronics Center

IMEP

indicated mean effective pressure

IMIC

Infrastructure Modernization Implementation Committee

IMP

ion-moderated partition

IMS

integrated mechanical system

IMTS

International Meeting of Test Stations

IMVS

intensity-modulated photovoltage spectroscopy

INL

Idaho National Laboratory

I/O

input/output

IOU

investor-owned utility

IP

intermediate process

IPA

isopropyl alcohol

IPAC

Intra-Governmental Payment and Collection

IPC

Institute of Paper Chemistry
Integrated Power Corp.

IPEG

interim price estimation guidelines

IPH

industrial process heat

IPO

initial public offering

IPP

independent power producer

IPST

Institute of Paper Science and Technology

IQT

interim qualification testing

IR

infrared

I-R100

(Industrial Research Award, see R&D 100)

IRAP

Insolation Resource Assessment Program

IRB

Internal Review Budget

IREC

Interstate Renewable Energy Council

IRL

Insolation Resource Laboratory

IRM

integrated resource management
international resource monitoring

IRP

integrated resource planning

IRR

internal rate of return

ISCC

Interstate Solar Coordination Council

ISCCP

International Satellite Cloud Climatology Project

ISCCS

integrated solar combined-cycle system

ISE

Institute for Solar Energy

ISES

International Solar Energy Society

ISET

International Solar Electric Technology

ISIS

NOAA Integrated Surface Irradiance Study

ISM

integrated safety management

ISMA

interactive self-modeling multivariate analysis

ISO

independent system operator
International Organization for Standardization

ISOE

(see SPIE)

ISP

Information Services Program
Institute for Sustainable Power

ISS

ion scattering spectroscopy

IST

Industrial Solar Technology

ITE

Institute of Transportation Engineers

ITIS

Integrated Technical Information Service

ITN/ES

ITN Energy Systems

ITO

indium tin oxide

ITSAC

International Thermal Storage Advisory Council

ITUTF

Industrial Thermochemical User Test Facility

IUF

Industrial User Facility

IUPAC

International Union of Pure and Applied Chemistry

I-V

current voltage

IVHS

Intelligent Vehicle Highway Systems

IWP

Industrial Waste Program

IWS

Industrial Welding and Supply Co.

IWSA

Integrated Waste Services Association

J

joule

JCGS

Joint Center for Graduate Studies

JEDI

Jobs and Economic Development Impact

JGCRI

Joint Global Change Research Institute

JNCP

justification for noncompetitive procurement

JPL

Jet Propulsion Laboratory

Jsc

short-circuit current

JSEE

Journal of Solar Energy Engineering

JSF

Joyce Street Facility

JSME

Japan Society of Mechanical Engineers

J-V

current density voltage

JVP

joint venture project

JWS

joint work statement

KAD

known airflow device

KACST

King Abdulaziz City for Science and Technology

KAPL

Knolls Atomic Power Laboratory

KEURP

Kansas Electric Utilities Research Program

KFA

Kernforschungsenlage

KGRA

known geothermal resource area

kHz

kilohertz

KIER

Korea Institute for Energy Research

KIESD

Kentucky Institute for the Environment and Sustainable Development

KSES

Korean Solar Energy Society

kW

kilowatt

kWhe

kilowatt hour electric

kWht

kilowatt hour thermal

kWp

kilowatt peak

kV

kilovolt

LACMTA

Los Angeles County Metropolitan Transit Authority

LACSS

large-area, continuous-solar simulator

LADWP

Los Angeles Department of Water and Power

LALCO

low-aromatics light cycle oil

LAN

local area network

LANL

Los Alamos National Laboratory

LANSIR

large-aperture, near-specular imaging reflectometer

LAP

laboratory analytical procedure (protocol)

LAPSS

large-area pulse solar simulator

LAPW

linearized augmented plane wave

LASL

Los Alamos Scientific Laboratory

LASS

low-angle silicon sheet

LB

Langmuir-Blodgett (a type of analysis)
laser beam
Luria broth

LBES

Laboratory of Biomedical and Environmental Sciences (University of California, Los Angeles)

LBIC

laser beam induced current
light beam induced current

LBNL

Lawrence Berkeley National Laboratory

LBTF

Large Blade Test Facility

LCA

life cycle assessment

LCC

life cycle costs
low-cost concentrator

LCD

liquid crystal display

LCGO

light coker gas oil

LCHP

laboratory chemical hygiene plan

LCNT

low concentration nontracking

LCO

light-cycle oil

LCOE

levelized cost of energy

LD

laser diode

LDA

laser doppler anemometry

LDV

laser doppler velocimeter
light-duty vehicle

LDRD

Laboratory Directed Research and Development Program

LEBS

low-emission boiler system

LEC

levelized energy cost

LED

light-emitting diode

LEED

Leadership in Energy and Environmental Design

LEFR

laminar entrained-flow reactor (associated with black-liquor gasification)

LEGR

leading-edge grain roughness

LEP

Low Emission Partnership

LES

liquid encapsulated synthesis

LEV

low-emission vehicle

LFDR

line-focus distributed receiver

LFG

landfill gas

LHR

low-heat rejection

LI-COR

company name; do not spell out

LIPA

Long Island Power Authority

LIST

long-term inflow and structural testing (NWTC Wind Program)

LL

MIT Lincoln Laboratory

LLL

Lawrence Livermore Laboratory

LLNL

Lawrence Livermore National Laboratory

LLP

laboratory-level procedure

LMA

Lockheed Martin Astronautics

LMW

low molecular weight

LNG

liquefied natural gas

LO

longitudinal optical

LOI

letter of interest (letter of intent is always spelled out)

LORRE

Laboratory on Renewable Resources Engineering

LP

linear programming

LPE

liquid phase epitaxy

LPG

liquefied petroleum gas

LP QCM

liquid-phase quartz crystal microbalance

LPSO

Lead Program Secretarial Office

LRC

Lighting Research Center

LSCAP

light stimulated capacitance

LSF

liquid state fermentation

LSS

laser scan system

LSTTF

Large-Scale Thermal Test Facility

LTS

long-term stewardship

LTU

Lawrence Technological University

LTV

loan-to-value

LVV

(energy transition, not an acronym; do not spell out)

LWCRF

Large Wind Component Reliability Facility

LWTTF

Large Wind Turbine Test Facility

M&E

measurement and evaluation

M&V

measurement and verification

MAERC

Minority Access to Energy-Related Research Careers

MAMTC

Mid-America Manufacturing Technology Center

MAS

Massachusetts Audubon Society
Micro Analytical Society

MAS-NMR

magic angle spinning nuclear magnetic resonance

MAT

micro-activity test

MATM

matrix approach to testing mirrors

MAPPS

modular autonomous photovoltaic power supply

MB

molecular beam

MBE

mean bias error
molecular beam epitaxy

MBI

Michigan Biotechnology Institute

MBMDPE

metallocene-based multi-density polyethylene

MBMS

molecular beam mass spectrometer (if it is spectrometry, spell it all out)

MBQ

monomethoxybenzoquinone

MBTQMS

molecular beam triple quadrupole mass spectrometer

MBWA

management by walking around

mc

multicrystalline

MCFC

molten carbonate fuel cell

MCS

master control system

MDA

Marine Development Associates, Inc.

MDAC

McDonnell Douglas Astronautics Co.

MDC

McDonnell Douglas Corporation

MDT

mean daily total
Mountain Daylight Time

MEC

Model Energy Code

MEE

migration-enhanced epitaxy

MEG

multiple-exciton generation

MEMP

Municipal Energy Management Program

MESA

Mathematics, Engineering, & Science Achievement

METC

Morgantown Energy Technology Center

MEVP

modular electric vehicle program

MF

microfiltration

MFG

motor fuel grade

MFRB

multipurpose fluidized reactor bed

MG

metallurgical grade

MHEA

mobile home energy audit

MHK

marine and hydrokinetic

MICC

metal interconnected cascade cell

MIM

monolithic interconnected module

MIPR

military interdepartmental purchase requisition

MIR

maximum incremental reactivity

MIS

Management Information Systems
metal insulated semiconductor

MISR

Modular Industrial Solar Retrofit (Program)

MISS

metal insulator semiconductor switch

MIT

Massachusetts Institute of Technology

MITE

Municipal Solid Waste Innovative Technology Evaluation

MITI

Ministry of International Trade and Industry (Japan)

MLTE

module long-term exposure

MM

man months

MMBQ

monomethoxybenzoquinone

MMPE

military module power equipment

MMS

mineral management service

M&O

management and operating

MOA

memorandum of agreement

MOC

memorandum of cooperation

MOCVD

metal organic chemical vapor deposition

MON

motor octane number

MOU

memorandum of understanding

MOVPE

metal organic vapor phase epitaxy

MoWiTT

Mobile Window Thermal Test

MPA

multi-pyranometer array

MPO

memorandum purchase order

MPP

model power plant

MPPT

maximum power point tracking

MRF

materials recovery facilities

MRI

Midwest Research Institute

MRS

Materials Research Society

MRT

mean radiant temperature

MS

mass spectrometer
molten salt

MSA

Microscopy Society of America

MSDS

material safety data sheet

MSG

Marine Sciences Group (University of California at Berkeley)

MSI

Minority-serving institution

MSO

molten salt oxidation

MSR

Million Solar Roofs
Monthly Status Report

MSSTF

Mid-Temperature Solar System Test Facility (Sandia National Laboratories)

MST

Mountain Standard Time

MSW

municipal solid waste

MSWM

Municipal Solid Waste Management (used with Program)

MT

market transformation

MTBE

methyl tertiary butyl ether

MTBF

mean time between failure

MTCI

Manufacturing and Technology Conversion International, Inc.

MTCRF

Mid-Temperature Collector Research Facility (SERI)

MTI

Mechanical Technology, Inc.

MTG

methanol-to-gasoline

MTS

material testing system

MUA

methylumbelliferal acetate

MUPC

Macani-Uwila Power Corp.

MURA

Minority University Research Associates

MVA

multivariate analysis

MW

megawatt

MWh

megawatt-hour

MWC

municipal waste combustors

MYPP

Multi-Year Program Plan

MYRP

Multi-Year Research Plan

MYTP

Multi-Year Technical Plan

NAA

neutron activation analysis
nonattainment area

NAAQS

National Ambient Air Quality Standards

NABCEP

North American Board of Certified Energy Practitioners

NAECA

National Appliance Energy Conservation Act

NAEP

National Association of Environmental Professionals

NAESCO

National Association of Energy Service Companies

NAFTA

North American Free Trade Agreement

NAFUF

National Alcohol Fuels Users Facility

NAHB

National Association of Home Builders

NAHB/RF

National Association of Home Builders/Research Foundation

NARSTO

North American Research Strategy for Tropospheric Ozone

NARUC

National Association of Regulatory Utility Commissioners

NAS

National Academy of Sciences

Naval Air Station

NASA

National Aeronautics and Space Administration

NASCSP

National Association of State and Community Service Programs

NASEO

National Association of State Energy Officials

NASUCA

National Association of State Utility Consumer Advocates

NAUCA

National Association of Utility Consumer Advocates

NBB

National Biodiesel Board

NBC

National Bioenergy Center

NBS

New Brunswick Scientific

NC

noncondensible

NCAR

National Center for Atmospheric Research

NCASI

National Council for Air and Stream Improvement

NCAT

National Center for Appropriate Technology

NCC

National Climatic Data Center

NCCTI

National Climate Change Technology Initiative

NCDC

National Climatic Data Center

NCEL

Naval Civil Energy Laboratory

NCMA

National Concrete Masonry Association

NCPV

National Center for Photovoltaics

NCSA

National Center for Supercomputing Applications

nc-Si

nanocrystalline silicon

NCSL

National Conference of State Legislatures

NCSU

North Carolina State University

NCTP

National Critical Technologies Panel

NDA

nondisclosure agreement

NDE

nondestructive experiments

NDIR

nondispersive infrared

NDP

NREL Development Plan

NDT

nondestructive testing

NEC

National Electric Code

NECPA

National Energy Conservation Policy Act

NEDO

New Energy and Industrial Technology Development Organization

NEED

National Energy Education Development Project

NEES

New England Electric System

NEF

National Ethanol Facility

NEG

Nippon Electric Glass

NEL

National Engineering Laboratory (in Europe)

NELH

Natural Energy Laboratory of Hawaii

NEPA

National Environmental Policy Act

NEMA

National Electrical Manufacturers Association

NEMI

National Energy Management Institute

NEMS

National Energy Modeling System

NEP

National Energy Policy

NERC

North American Electric Reliability Council

NES

National Energy Strategy

NESEA

Northeast Solar Energy Association

NETL

National Energy Technology Laboratory

NF

nanofiltration

NFEC

Naval Facilities Engineering Command

NFPA

National Fire Protection Association

NFRC

National Fenestration Rating Council

NGL

natural gas liquid

NGO

nongovernment organizations

NGV

natural gas vehicle

NHA

National Hydrogen Association
National Hydropower Association

NIEP

National Independent Energy Producers

NICE3

National Industrial Competitiveness through Energy, Environment, and Economics

NIH

National Institutes of Health

NIP

normal incidence pyrheliometer

NIPER

National Institute for Petroleum and Energy Research

NIR

near infrared

NIRS

near infrared spectroscopy

NIS

Newly Independent States

NIST

National Institute of Standards and Technology

NLC

National League of Cities

NMERI

New Mexico Energy Research and Development Institute

NMHC

nonmethane hydrocarbon

NMI

National Maglev Initiative

NMOC

nonmethane organic carbon

NMOG

nonmethane organic gas

NMR

nuclear magnetic resonance

NMSER

New Mexico Solar Energy Research

NMSU

New Mexico State University

NNAC

NREL National Advisory Council

NOAA

National Oceanic and Atmospheric Administration

NOCT

nominal operating cell temperature

NOI

Notice of Inquiry
Notice of Intent

NOPI

Notice of Program Interest

NOPR

Notice of Proposed Rulemaking

NORDA

Naval Oceanographic Research and Development Activity

NOx

oxides of nitrogen

NPDES

National Pollutant Discharge Elimination System

NPPD

Nebraska Public Power District

NPPE

net power-producing experiment

NPPEA

net-power-producing experimental apparatus

NPR

Naval Petroleum Reserve

NPS

National Park Service
Northern Power Systems Co.

NPT

neomycin phototransferase

NRC

National Research Council

NRCan

Natural Resources Canada

NRCC

Northeast Regional Climate Center

NRDC

National Resources Defense Council

NRECA

National Rural Electric Cooperative Association

NREL

National Renewable Energy Laboratory

NRL

U.S. Naval Research Laboratory

NSDN

National Solar Data Network

NSF

NSF International (do not spell out NSF)
National Science Foundation

NSOM

near-field scanning optical microscope

NSPS

new source performance standards

NSRDB

National Solar Radiation Database

NSTC

National Science and Technology Council

NSTTF

National Solar Thermal Test Facility (at Sandia National Laboratories)

NTD

neutron transmutation dopant

NTI

National Technology Initiative

NTIS

National Technical Information Service

NTSU

North Texas State University

NTU

number of transfer units

NTUA

Navajo Tribal Utility Authority

NWGP

New World Grid Power

NWS

National Weather Service

NVH

noise, vibration, and harshness

NUG

nonutility generator

NWEA

National Wood Energy Association

NWEC

National Wind Energy Center

NWTC

National Wind Technology Center

NYSERDA

New York State Energy Research and Development Authority

O&M

operations and maintenance

OATS

outdoor accelerated test system

OBP

U.S. Department of Energy Biomass Program

OBCS

Office of Buildings and Community Systems (DOE)

OBIC

optical beam induced current

OC

open cycle

OCLI

Optical Coating Laboratory Inc.

OCVD

open-circuit voltage decay (technique)

OD

optical density
outside diameter

ODC

ordered defect compound

other direct cost

OECM

Office of Engineering and Construction Management

OEDER

Office of Electricity Delivery and Energy Reliability

OEM

Office of Environmental Restoration and Waste Management (DOE)

OEM

original equipment manufacturer

OER

Office of Energy Research

OESD

Office of Energy Storage and Distribution

OET

Ocean Energy Technology

OFCCP

Office of Federal Contract Compliance

OFD

Office of Fuels Development

OIH

organic-inorganic hybrid

OIP

Office of Industrial Programs

OMA

optical multichannel analyzer

OMAE

Offshore Mechanics and Arctic Engineering

OMB

Office of Management and Budget

OMCVD

organometallic chemical vapor deposition

OMR

Office of Resource Management

OMVPE

organometallic vapor phase epitaxy

OP

optical processing

OPA

Office of Planning and Assessment
Office of Policy Assessment
Office of Program Analysis
Office of Public Affairs (most commonly used)

OPEC

Organization of Petroleum Exporting Countries

OPV

organic photovoltaics

ORC

organic rankine cycle

ORD

Office of Research and Development

ORNL

Oak Ridge National Laboratory

ORR

operational readiness review

OSB

oriented strand board

OSEC

Office of Solar Energy Conversion

OSHA

Occupational Safety and Health Administration

OSLAP

State and Local Assistance Programs Division

OSTI

Office of Scientific and Technical Information

OSTP

offshore test platform
White House Office of Science and Technology Policy

OSU

Oregon State University

OSW

Office of Solid Waste and Emergency Response

OTA

Office of Technical Assistance

OTEC

ocean thermal energy conversion

OTF

Outdoor Test Facility

OTFA

Office of Technical and Financial Assistance

OTR

oxygen transfer rate

OTT

Office of Transportation Technologies

OUT

Office of Utility Technologies
oxygen uptake

OVC

ordered vacancy compound

PA

polyamine

PAAAS

polyacrylic acid ammonium salt

PAACM

polyacrylic acid-carboxyl modified

PAD

pulsed amperometric detection

PADD

Petroleum Administration for Defense Districts

PAE

planning, analysis, and evaluation

PAFC

phosphoric acid fuel cell

PAH

polyaromatic hydrocarbons

PAMS

Photochemical Assessment Monitoring Station

PAN

peroxyacetyl nitrate

polyacrylonitrile

PAR

photosynthetically active radiation

project (or proposal) authorization request

PASS

pulse analysis spectroradiometer system

PBA

Office of Planning, Budget and Analysis

PBN

pyrolytic boron nitride

PBR

performance-based ratemaking
performance-based regulation
progressing batch reactor

PC

polycarbonate

PCA

protocatechuic acid

PCB

polychlorinated biphenyl

PCC

Pittsburgh Corning Corp.

PCD

photoconductive decay

PCE

perchloroethylene

PCL

polymer-concrete lined (or lining)

PCM

phase-change material

pulse-code modulated

PCO

photocatalytic oxidation

PCPB

photochemical/photobiology

PCR

polymerase chain reaction

PC/TM

Performance Criteria and Test Methods

PCU

power conditioning unit
power conversion unit

PDC

pyruvate decarboxylase

PDF

portable document format

PDFL

Photovoltaic Device Fabrication Laboratory

PDH

pyruvate dehydrogenase

PDIL

Process Development and Integration Laboratory

PDP

pressure dew point
programmable digital processor

PDS

photovoltage deflection spectroscopy

PDTS

parabolic dish test site

PDU

Process Development Unit

PEAT

(NREL's) Policy and Environmental Analysis Team

PEC

Petroleum Energy Council
photoelectrochemical

PE/CVD

plasma-enhanced chemical vapor deposition

PECVT

plasma-enhanced chemical vapor transport

PED

pulsed electron-beam deposition

PEF

processed engineered fuels

PEG

Program for Entrepreneurial Growth (now called the Entrepreneurial Growth Program)

PEI

polyethylenimine

PEL

permissible exposure limit

PEM

proton exchange membrane

PEP

photovoltaic energy project

PERT

performance and energy ratings testbed

PET

polyethylene terephthalate

PETC

Pittsburgh Energy Technology Center

PFA

prefeasibility analysis

PFBC

pressurized fluid bed combustion

PFD

process flow diagram

PFDR

point-focusing distributed receiver

PFDRT

point-focusing distributed receiver task

PFR

plug-flow reactor

PGE

Portland General Electric

PGI

Power Generating, Inc. (company name; acronym preferred)

PG&E

Pacific Gas and Electric Co.

PGMase

phosphoglucomutase

PHA

poly(hexamethylene) adipamide

PHEV

plug-in hybrid electric vehicle

PHIL

power-hardware-in-the-loop

PI

performance indicator
principal investigator

PIC

products of incomplete combustion

PICHTR

Pacific International Center for High Technology Research

P&ID

piping and instrumentation design

PIER

Public Interest Energy Research

PIM

project integration meeting

PIMS

Process Industry Modeling System

PIN

particulate-induced noise

PING

pilot injection natural gas

PIR

products of incomplete reaction

PIRL

polyimide release layer

PIT

powder in tube

PKI

Power Kinetics Inc.

PL

photoluminescence

PLD

polymeric liquid desiccants pulsed laser deposition

PLS

partial least squares

PMA

Power Marketing Administration (DOE)

PMASS

poly(methacrylic acid sodium salt)

PMMA

polymethylmethacrylate acrylics

PMR

proton magnetic resonance

PMRC

Pyrolysis Materials Research Consortium

PMT

photomultiplier tube

P/N

phenol/neutral

p/n fraction

phenolics and neutrals fraction

PNA

polynuclear aromatics

PNGV

Partnership for a New Generation of Vehicles

PNM

Public Service Company of New Mexico

PNNL

Pacific Northwest National Laboratory

PO

performance objective

POB

project oversight board

POP

period of performance

POTW

publicly owned treatment works

POX

partial oxidation reactor

PP

pentose phosphate

polypropylene

PPA

power purchase agreement

PPBS

Planning, Programming, and Budgeting System

PPG

PPG Industries (do not spell out PPG)

ppmv

parts per million by volume

PPR

polypropylene random copolymer

PPS

polyphenylene sulfide

PPU

power processing unit
program planning unit

PR

public relations
purchase request

P.R. China

People's Republic of China

PRDA

program research and development announcement

PRINTS

Publication Request and Inventory Tracking System

PS I

Photosystem I

PS II

Photosystem II

PSB

photosynthetic bacteria

PSC

phosphoric acid swollen cellulose
pressure system controller

PSCo

Public Service Company of Colorado

PSI

Physical Sciences Inc.
Pressure Systems Inc.

PSM

power sensor module

PSO

Program Secretariat Office

PSSA

polystyrene sulfonic acid

PSSAKS

polystyrene sulfonic acid potassium salt

PSSALS

polystyrene sulfonic acid lithium salt

PSSA-L

polystyrene sulfonic acid lithium salt

PSSASS

polystyrene sulfonic acid sodium salt

PSSA-Na

polystyrene sulfonic acid sodium salt

PT

potential transformer

PTC

power transfer control
production tax credit

PTI

Power Technology, Inc.

PTL

Photovoltaic Testing Lab

PTO

power take-off

PTS

phosphotransferase system

PU

polyurethane

PUC

public utility commission

PUHCA

Public Utilities Holding Company Act of 1935

PURPA

Public Utility Regulatory Policies Act

PV

photovoltaic(s)

PV4U

PV for Utilities

PVAP

pervaporation apparatus

PVB

polyvinyl butyral

PVC

polyvinyl chloride

PVCCC

PV Compact Coordinating Council

PV:COMPACT

Photovoltaic Collaborative Market Project to Accelerate Commercial Technology

PVD

physical vapor deposition

PVDF

polyvinylidene fluoride

PV GAP

Photovoltaic Global Approval Program

PVMaT

Photovoltaic Manufacturing Technology

PVME

polyvinylmethylether

PVMR&D

PV Manufacturing R&D

PVP

polyvinylpyrilidone

PVPS

photovoltaic power system

PVSA

polyvinyl sulfonic acid (sodium salt)

PVSAC

Photovoltaic Systems Assistance Center

PVSAM

PV Systems Analysis Model

PVSC

Photovoltaic Specialists’ Conference

PVSEC

International Photovoltaic Science and Engineering Conference

PVSOL

PV System Optimization Laboratory

PVUSA

Photovoltaics for Utility-Scale Applications

PWEC

prototype wave energy converter

PWECS

pneumatic wave energy conversion system

PWM

pulse-width modulated
pulse-width modulation

PY

prior year

Py-MBMS

pyrolysis-molecular beam mass spectrometry

QAP

quality assurance plan

QAS

quality assurance and standards

QC/QA

quality control and quality assurance

QCM

quartz crystal microbalance

QD

quantum dot

QDLED

quantum dot light-emitting diode

QE

quantum efficiency

QF

qualifying facility

QCM

quartz crystal microbalance

QSSPC

quasi-steady-state photoconductance

QTS

qualification test system

QVM

qualified vehicle modifier

QVV

not an acronym; do not spell out

RABiTS

rolling-assisted biaxially-textured substrates (coated conductor)

RAD

research and advanced development

RAM

random access memory

RAPAD

Research Association for Petroleum Alternatives Development

RBEP

Regional Biomass Energy Program

RBS

reverse bias soaking
Rutherford backscattering spectroscopy

RCCP

Residential and Commercial Conservation Program

RCRA

Resource Conservation and Recovery Act

RCS

Residential Conservation Service Program

RCUH

Research Center of the University of Hawaii

RCPCD

resonance-coupled photoconductive decay

R&D

research and development

RD&D

research, development, and demonstration

R&M

reliability and maintainability

RDBMS

Relational database management system

RDF

refuse-derived fuel

REA

Renewable Energy Alliance
Rural Electrification Administration

REAP

Renewable Energy Academic Partnership
Renewable Energy Alternative Program

REC

renewable energy certificate
renewable energy credit

Recovery Act

American Recovery and Reinvestment Act of 2009

REE

rapeseed ethyl ester

REEPS

Residential End-Use Energy Policy System

REETI

Renewable and Energy Technology Training Institute

REFAD

Renewable Energy for African Development

REI

Renewable Energy Institute

REIS

Renewable Energy Information Service

REP

rotor enhancement program

REASIA

Renewable Energy Asia

RES

regional experiment station

RET

renewable electric technologies
renewable energy technologies

RETA

renewable energy technology analysis

RETF

Renewable Energy Trust Fund

RETSIE

Renewable Energy Technologies Symposium and International Exposition

REV

replacement equipment value

RF

radio frequency

RFCF

Renewable Fuels and Chemicals Facility

RFCP

Renewable Fuels Central Plant

RFETS

Rocky Flats Environmental Technology Site

RFG

reformulated gasoline

RFHP

renewable fuel heat plant

RFI

request for information

RFMS

radio frequency magnetron sputtering

RFP

reinforced fiber plastic
request for proposals

RFPCD

radio frequency photo-conductive decay

RFQ

request for qualifications
request for quotation

RFS

radiation and free convection shield
renewable fuels standard

RFVSF

Renewable Fuels & Vehicles Systems Facility

RGA

residual gas analyzer

RH

relative humidity

RHEED

reflection high-energy electron diffraction

RICP

Renewable Institutional Conservation Program

RIMS

reference irradiance and meteorological system

RITH

roof-integrated thermosiphon

RMG

refined metallurgical grade

RMI

Rocky Mountain Institute

RMOTC

Rocky Mountain Oilfield Testing Center

RMSE

root mean square error

RMT

research management team

RNA

ribonucleic acid

RO

reverse osmosis

ROG

reactive organic gas

ROI

record of invention
return on investment

RON

research octane number

ROS

renewable oxygenate standard

ROWPU

reverse osmosis water purification unit

RPI

Rensselaer Polytechnic Institute

RPS

renewable portfolio standard

RPV

replacement plant value

RReDC

Renewable Resource Data Center

RRSD

rough, rotten, and salvable dead (wood)

RSEP

Resource Supply Expansion Program

RSEC

Regional Solar Energy Center

RSF

Research Support Facility

RSI

renewable systems integration

RSM

reciprocal space map

RSO

regional support office

RT

room temperature

RTA

rapid thermal annealing

RTD

regional transportation district
resistance temperature device

RTEC

regenerative thermo-electrochemical converter

RTI

RTI International

RTO

regional transmission operator
regional transmission organization

RTP

rapid thermal processing

RTR

ribbon-to-ribbon

RTSE

real-time spectroscopic ellipsometry

RUS

Rural Utilities Service

RVP

Reid vapor pressure

SA

Saudi Arabia
spark advance

SAB

Science Advisory Board

SAC

Solar America Cities

SAE

Society of Automotive Engineers

SAIC

Science Applications International Corp.

SAM

scanning auger microprobe
System Advisor Model (formerly Solar Advisor Model)

SAMIS

Solar Array Manufacturing Industry Simulation

SAN

Department of Energy, San Francisco Operations Office

SANCST

Saudi Arabian National Center for Science and Technology

SAPRC90

Strategic Air Pollution Research Center 1990

SAR

safety analysis review

SAS

Solar America Showcases
statistical analysis system

SASOL

SASOL Limited (do not spell out SASOL)

SAT

site acceptance testing

SAX

small-angle x-ray

SBC

systems benefit charge

SBEP

Sustainable Biomass Program

SBIC

Sustainable Buildings Industry Council

SBIR

Small Business Innovation Research

SBP

sludge bed pool

SBR

sulfate-reducing bacteria

SBTF

Single Blow Test Facility

SCADA

supervisory control and data acquisition

SCAQMD

South Coast Air Quality Management District

SCC21

IEEE Standards Coordinating Committee 21

SCCM

standard cc per minute

SCE

Southern California Edison

SC3EP

Superconductivity Coordinating Committee for Electric Power

SCFD

standard cubic feet per day

SCFE

super-critical fluid extraction

SCFH

standard cubic feet per hour

SCFM

standard cubic feet per minute

SCG

Southern California Gas

SCI

San Clemente Island

SCIM

silicon on ceramic by inverted meniscus (also called SOC)

SCL

superconducting current limiter

SCLC

space-charge limited current

SCO

system control object

SCP

single cell protein

SCR

Silicon controlled rectifier

SCRTD

Southern California Rapid Transit District

SCSE

small community solar thermal power equipment

SDA

systems-driven approach

SDG&E

San Diego Gas and Electric

SDHW

solar domestic hot water

SDMS

scanning defect mapping system

SDP

site development plan

SDS

sodium dodecyl sulfate

SDSE

sulfur dioxide steam explosion

SDSU

South Dakota State University

SDWA

Safe Drinking Water Act

SE

specific energy

SEAB

Secretary of Energy Advisory Board

SEACC

Systems Engineering Analysis Computer Code

SEC

size exclusion chromatography

Saudi Electric Company

SED

selective electro-dissolution

SEER

seasonal energy-efficiency ratio

SEGIS

Solar Energy Grid Integration Systems

SEGS

solar electric generating systems

SEI

Solar Energy International

SEIA

Solar Energy Industries Association

SEIDB

solar energy information data bank

SEM

scanning electron microscopy

SEMRTS

Solar Energy Meteorological Research and Training Sites

SEN

Secretary of Energy Notice

SEO

state energy office

SEOR

solar enhanced oil recovery

SEP

Source Evaluation Panel
standard energy package
State Energy Program

SEPA

Solar Electric Power Alliance

SER

systems effectiveness research

SERAPH

solar energy research and applications in process heat

SERD

Solar Electric Research Division

SERDP

Strategic Environmental Research and Development Program

SERES

Southeast Regional Experiment Station

SEREF

Solar Energy Research and Education Foundation

SERF

Solar Energy Research Facility

SERI

Solar Energy Research Institute

SERP

Super-Efficient Refrigeration Program

SES

Stirling Energy Systems

SET

squeezable electron tunneling

SETP

Solar Energy Technologies Program

SFB

solar federal building

SFBP

Solar Federal Buildings Program

SFDI

solar facilities design integrator

SFES

Southern Forestry Experiment Station

SFIX

simultaneous fermentation and isomerization of xylose

SFRD

Solar Fuels Research Division

SG

semiconductor grade
specific gravity

SGI

Silicon Graphics Interface

SGP

Southern Great Plains (site located at Lamont, Oklahoma)

SHC

solar heating and cooling

SHED

simplified home energy design

SHF

separate hydrolysis and fermentation
sequential hydrolysis and fermentation

SHGC

solar heat gain coefficient

SHGR

Solar Hydrogen Generation Research

SHIP

Solar Heat Industrial Process

SHJ

silicon heterojunction

SHOT

Scanning Hartmann Optical Test

SHR

sensible heat ratio

SHRD

Solar Heat Research Division

SHW

solar hot water

SIAB

Science and Industry Advisory Board

SIC

Standard Industrial Classification

SIF

stress intensity factor

SILSO

trade name for Wacker cast silicon; do not spell out

SIMS

secondary ion mass spectrometry

SIMTA

Solar Industrial Mesa Test Area

SIP

state implementation plan
structural insulated panel

SITL

Systems Interconnection Test Laboratory

SKI

Solar Kinetics Inc.

SKPM

scanning Kelvin probe microscopy

SL

superlattice

SLAC

Stanford Linear Accelerator Center

SLC

Strategic Laboratory Council

SLP

service life prediction
standard laboratory practice

SLR

standard labor rate
St. Lawrence Reactors

SMART

Systems and Modeling for Accelerated Research in Transportation

SMD

sauter mean diameter

SMER

systems and materials effectiveness research

SMES

superconducting magnetic energy storage

SMIF

standard mechanical interface

SMS

strategic management system

SMSA

standard metropolitan statistical area

SMUD

Sacramento Municipal Utility District

SNARL

Sierra Nevada Aquatic Research Laboratory

SNET

Southern New England Telephone Co.

SNI

San Nicholas Island

SNL

Sandia National Laboratories

SO

Support Office

SoCAB

South Coast Air Basin

SOC

silicon or ceramic
state of charge

SOFC

solid oxide fuel cell

SOLAR/CS

Division of Solar Applications under the Office of the Assistant
Secretary for Conservation and Solar Applications

SolarDS

Solar Deployment Systems (model)

Solar PACES

Solar Power and Chemical Energy Systems

SOLMET

Solar-Meteorological

SOMES

standardized outdoor module evaluation system

SOP

safe operating procedure

SOW

statement of work

SPC

solid-phase crystallized

SPDT

single-pole, double-throw (relay)

SPH

solar process heat

SPHER

small particle heat-exchanger receiver

SPI

Superconductivity Partnership Initiative

SPIE

International Society for Optical Engineering

SPIP

Solid Propulsion Integrity Program

SPSA

small power systems applications

SPV

surface photovoltage

SQUID

superconducting quantum interference device

SR

spectral response

SRCC

Solar Rating and Certification Corp.

SRD

straight-run diesel

SRE

Subsystems Research Experiment (JPL)

SRF

Solar Radiation Facility

SRI

SRI International

SRIC

short rotation intensive crop

SRP

Salt River Project

SRRAP

Solar Radiation Resource Assessment Project

SRRL

Solar Radiation Research Laboratory

SR&T

supporting research and testing

SRV

surface recombination velocity

SRWC

short-rotation woody crop

SSA

source selection authority

SSBS

spectrally selective beam splitter

SSE

Surface Meteorology and Solar Energy (a NASA project)

SSF

simultaneous saccharification and fermentation

SSI

Shell Solar Industries

SSJ

sole source justification

SSL

spent sulfite liquor

SSMS

spark source mass spectroscopy

SSO

Safety and Security Office

SS PCM

solid-state phase-change material

SSTA

subscale test article

SSTM

spectroscopic scanning tunneling microscope

S&T

science and technology

STC

standard test conditions

STCH

solar thermochemical hydrogen

S&TF

Science & Technology Facility

STAIR

Services/Transportation/Agriculture/Industry/Residential

STC

Stirling Technology Corp.

STDAC

solar thermal design assistance center

STEM

scanning transmission electron microscope
Short Term Energy Monitoring (Project)

STEP

Solar Total Energy Project
Sustainable Technology Energy Partnerships

STEPS

Superconductivity Technology for Electric Power Systems

STES

solar total energy systems

STI

Science and Technology Initiative
Seacoast Test Facility
Sonoma Technology Inc.
Stress Technology Inc.

STIG

steam-injected gas turbine

STIP

Solar Technical Information Program

STM

scanning tunneling microscopy
South Table Mountain
Stirling Thermal Motors

STMPO

Solar Ten-Megawatt Project Office (Department of Energy)

STPP

Surface Transportation Policy Project

STTF

Solar Thermal Test Facility

STTFUA

Solar Thermal Test Facilities Users’ Association

SULEV

super-ultra-low-emission vehicle

SUNY

State University of New York

SURFRAD

Surface Radiation Budget Network

SVD

singular value decomposition

SWANA

Solid Waste Management Association of North America

SWAP

Solar Weatherization Assistance Program

SWC

surge withstand capability

SWCC

Saline Water Conservation Corporation

SWH

solar water heating

SWL

surface-wave lamp

SWOP

solid waste options

SWRES

Southwest Regional Experiment Station

SwRI

Southwest Research Institute

SWTDI

Southwest Technology Development Institute

SWY

standard work year

TA

technical assistance

TAC

Technical Advisory Committee

TAEE

tertiary-amyl ethyl ether

TAG

technical advisory group

TAHP

thermally activated heat pump

TAME

tertiary-amyl methyl ether

TAP

thermosyphon air panels

TAPPI

Technical Association of the Pulp and Paper Industry

TBA

tertiary butyl alcohol

TBC

test-bed concentrator (JPL)

TBCCO

TlBaCaCuO

TBD

to be determined

TBFI

terrestrial biomass feedstock interface

TC

Technical Committee
thermochemical conversion

TCA

thermal cycle annealing

TCAPP

Technology Cooperation Agreement Pilot Project

TCC

transparent conductive coating

TCDD

tetrachlorodibenzodioxin

TCF

Technology Commercialization Fund

TCE

trichloroethylene

TCO

Technical Communications Office
transparent conducting oxide

TCPDU

Thermochemical Process Development Unit

TCSC

thyristor-controlled series capacitor

TCUF

Thermochemical Users Facility

T&D

transmission and distribution

TDA

Technology Development Associates
U.S. Trade and Development Agency

TDC

top dead center

TDI

toluene-diisocyanate

TDS

total dissolved solids

TDMS

thermal-desorption mass spectrometry

TEA

technical and economic assessment

TE-21

Transportation Equity Act of the 21st Century

TEAM

Transformational Energy Action Management Initiative

TEAM-UP

Technology Experience to Accelerate Markets in Utility Photovoltaics

TEC

Technology Extension Center
total energy cycle

TEI

Technology Evaluation and Integration

TEM

technical exchange meeting
transmission electron microscopy

TEO

Territorial Energy Office

TEP

Technical Evaluation and Planning
Technical Evaluation Panel
Tucson Electric Power

TES

thermal energy storage

TESS

trajectory and evaporation of spray systems

TEST

thermal energy storage and transport

TFP

thick-film paste

TGA

thermogravimetric analysis

THA

total hydrocarbon analyzer

THC

total hydrocarbon

TIC

Technical Information Center
total installed cost
total ion current

TIFR

Tata Institute of Fundamental Research

TIO

technology improvement opportunity

TIP

Technical Information Program

TISES

Texas Instruments Solar Energy System

THAMA

U.S. Army Toxic and Hazardous Materials Agency 

THF

tetrahydrofuran

TLC

thin-layer chromatography

TLEV

transitional low-emission vehicle

TMA

thermomechanical analysis
trimethylamine

TMBMS

transportable molecular beam mass spectrometer

TMF

Technology Maturation Fund

TMT

tetramethyltin

TMY

typical meteorological year

TO

transverse optical

TOA

task ordering agreement

TOC

total organic carbon

TOF

time of flight

TOP

theoretical overlay photographic

TOPO

trioctylphosphine oxide

TOU

time of use

TPD

temperature-programmed desorption
tons per day

TPI

technical program integrator

TPL

technology performance level

TPP

Technology Pathway Partnership

TPV

thermophotovoltaic

TQM

total quality management

TQ&Q

technical qualitative and quantitative (used with evaluation)

TQQR

technical quantitative and qualitative review

TR

tandem reactor

TRAC

Teacher Research Associates

TRB

Transportation Research Board

TRC

Technical Review Committee
Transportation Research Center

TRES

thermally regenerative electrochemical system

TRL

technology readiness level

TRNSYS

TRaNsient SYstem Simulation Program

TRP

Technology Reinvestment Program

TRPL

time-resolved photoluminescence

TRT

technical review team

TSARC

Thermal Storage Applications Research Center

TSB

tryptic soy broth

TSC

Technical Steering Committee

TSCAP

thermally stimulated capacitance

TSRF

Translational Science Research Facility

TTCAP

Tiger Team Corrective Action Plan

TTCG

Technology Transfer Coordinating Group

TTF

Thermal Test Facility

TTO

Technology Transfer Office

TTPG

Technology Transfer Project Group (DOE)

TVA

Tennessee Valley Authority

TW

terrawatt

TWES

Tornado Wind Energy System

TWP

Tropical Western Pacific

TU

toxicity unit

TVMI

Technology Validation and Market Introduction

TVP

turbine verification program

TYSP

10-year site plan

UBECA

Utility Biomass Energy Commercialization Association

UBS

ultraviolet backscattering
utility battery storage

UCB

University of California, Berkeley

UCETF

Urban Consortium Energy Task Force

UCLA

University of California, Los Angeles

UCR

University of California, Riverside

UDDS

urban dynamometer driving schedule

UDRI

University of Dayton Research Institute

UEGO

universal exhaust gas oxygen

UESC

Utility Energy Services Contracting

UF

ultrafiltration

UGPase

UDP-glucose pyrophosphorylase

UH

University of Hawaii

UHF

ultrahigh frequency

UHV

ultrahigh vacuum

UL

Underwriters Laboratories

ULEV

ultra-low-emission vehicle

ULRF

University of