3M Company
AAB Inc. Windpower
ABB Combustion Engineering, Inc.
Accelergy Corporation
ADA Technologies
ADA-ES, Inc.
ADM Corn Processing
Advanced Biomass Gasification Technologies, Inc.
Advanced Fibers & Powders, LLC
Advanced Fuel Research
Advanced Technologies, Inc.
Advanced Technology Systems, Inc.
AECOM, Inc.
AER Energy Resources, Inc.
AES Puerto Rico
Afton Chemical Corporation
Agricultural Utilization Research Institute, Ag Innovations*
AgriTec, Inc.
AGSCO
AGVISE Laboratories
Ahlstrom Pyropower, Inc.
Air Products and Chemicals, Inc.
Airborne Clean Energy, LLC
Airflow Science Corporation
AJG Coal, Inc.
Alchem, Ltd.
ALCOA
Allegheny Power System, Inc.
Alliant Energy Corporate Services
Alliant Energy Corporation
Allied Adjusters
Allison Gas Turbines
Alpha-American Company
ALSTOM Power, Inc.
Altru Health System
Alvarado Lions Club*
AMAX Coal Industries
AMAX Extractive Research and Development
Amended Silicates
Ameren Generation Company
Ameren Services Company
AmerenEnergy Fuels & Services
AmerenEnergy Generating
AmerenUE
American Ceramic & Clay Company
American Coal Ash Association*
American Coalition for Ethanol*
American Corn Growers Foundation*
American Crystal Sugar Company
American Electric Power Service Corporation
American Energy Systems
American Family Insurance
American Fisheries Research Foundation*
American Fly Ash Company
American Foundrymen's Society*
American Heating & Air Conditioning, Inc.
American Lung Association*
American Lung Association of MN*
American Petroleum Institute*
American Plastics Council*
American Red Cross, Red River Valley Chapter*
American Ref-Fuel
American West Insurance Company
American Woods, Inc.
Amoco Chemical Company
Amoco Research Center
Anaconda Minerals Company
Analysis and Research Labs
ANDCO Environmental Processes, Inc.
ANG Coal Gasification Company
Apogee Scientific, Inc.
Applied Automation, Inc.
ARC Laboratories, Inc
ARCADIS Geraghty & Miller, Inc.
Arch Mineral Corporation
Arch of Wyoming, Inc.
Archer Daniels Midland Company
ARCO Coal Company
Arizona Electric Power Cooperative
Arkansas Power and Light
Arthur D. Little, Inc.
Ash Grove Cement Company
Ash Grove Resources, LLC
Associated Electric Cooperative, Inc.
Asymetric Technologies
Atlas, Inc.
Aveka, Inc.
B.A. Liesch Associates
B.C. Technologies, Ltd.
Babcock & Wilcox Company
Babcock & Wilcox Power Generation Group, Inc.
Babcock Borsig Power, Inc.
Babcock Power Environmnetal, Inc.
Bact Process Systems, Inc.
Baker Botts, LLP
Baker/TSA, Inc.
Ballard Power Systems
Basin Electric Power Cooperative
Battelle
Battelle Columbus Division
Baukol-Noonan, Inc.
BBI International
Bechtel Corporation
Behm's Truck Stop
Bemis Company, Inc.
Benet Laboratories
Best Stop, Inc.
Bethlehem Mines Corporation
Betz Laboratories, Inc.
Beyers Cement, Inc.
BHP Minerals
Billings Clinic
BIO-Sunn Corporation
Biomass Energy Resources Center
Biomass Energy Solutions, Inc.
BioNebraska, Inc.
Bioxy, Inc.
Bismarck-Mandan Development Association*
Black & Veatch
Blasch Precision Ceramics
BMC Construction
BNI Coal Ltd.
Boral Material Technologies, Inc.
Bosmas, Mark J.
BP America, Inc.
Braun Intertec
Brett Admixtures, Inc.
Brown-Nicollet
Browning-Ferris Industries
Burns and Roe, Inc.
C-Quest Technologies International, LLC
C-Quest Technologies, LLC
C.T. Donovan Associates, Inc.
Caballo Rojo, Inc.
Cameron-Yakima, Inc.
Carbon Resources, Inc.
Carbon Tec Energy
Carbotek, Inc.
Carbozyme, Inc.
Cargill Research
Cargill, Inc.
Carnot
CarTech Corporation
Carter Mining Company
Cascade Grain Products LLC
Catalytic, Inc.
Cavendish Farms, Inc.
CBI NA-CON, Inc.
Celcore, Inc.
Cenex Agri Fuels
Center for Energy and Economic Development*
Centerior Energy Corporation
Central Illinois Light Company
CEO Praxis, Inc.
CERA
CeraMem Separations
CertainTeed IG
Certified Technologies Corporation
Cetero Research
CH2M Hill, Inc.
Champion International Corporation
Chem Ash Company
Chem-Mod, LLC
Chemir Analytical Services
Chevron Research and Technical Company
Chevron/Texaco Products Company
Chicago Chem Consultants Corporation
Chief Energy, LLC
Ciba-Geigy Corporation
Cinergy Power Generation Services
Clarke Rajchel Engineering
Clean Earth Solutions, Inc.
Clipper Energy
Coal Gasification, Inc.
Coal Petrographic Associates, Inc.
Coal Services Corporation
Cognis, Inc.
Combustion Products Management
Combustion Systems, Inc.
Commonwealth Edison Company
Community Energy Alternatives Incorporated
Concurrent Technologies Corporation*
ConocoPhillips Company
CONSOL, Inc.
Consolidated Edison Company of New York, Inc.
Consolidation Coal Company
Constellation Energy
Constellation Power Source Generation, Inc.
Construction Services, Inc.
Construction Wholesalers
Consumers Power Company
Contech, Inc.
Cordero Mining Company
Cormetech, Inc.
Corning, Inc.
Corrugated Services, LP
Coteau Properties
CQ, Inc.
Crosslands, Inc.
Crown Iron Works Company
Crownbutte Wind Power, LLC
Cyclone Combustion Enhancement Group, LLC
Cyprus Coal Company
D.H. Blattner & Sons, Inc.
Dairyland Power Cooperative
Dakota Coal Company
Dakota Ethanol Steering Committee
Dakota Gasification Company
Dakota Machine, Inc.
Dakota Technologies, Inc.
Dakota Westmoreland Corporation
Dakota, Inc.
Dale's Cash Supply
Dawn Enterprises
Dayton Power & Light Company
DB Riley, Inc.
Dee Rees & Associates
Delta-Energy, LLC
Demeter Systems, LLC
Detroit Edison Company
Diamond Power Specialty Company
Dilip Patek & Associates
Diversified Energy
DMI Industries
Dow Chemical Company
Dow Corning Corporation
Doyon Ltd.
DTE Energy
DTE Energy Resources, Inc.
DTE PepTech, Inc.
Duke Energy Business Services, LLC
Duke Power Company
DuraTherm, Inc.
Dynegy Midwest Generation, Inc.
EAPC Architects Engineers
Eastern Kentucky Power Cooperative
Eco-Systems, Inc.
Edison Electric Institute*
Edison Electric Institute Aliance of Energy Suppliers Division*
EERC Foundation*
EERGC Corporation
EG&G Defense Materials, Inc.
EG&G Idaho, Inc.
Electric Power Research Institute, Inc.
Electric Power Technologies, Inc.
Elfchem North America
Elk Land Holding
Empire State Electric Energy Research Corporation
EN-DYN, Inc.
En-Rock, Inc.
Encore Operating, LP
Energy & Environmental Solutions, LLC
Energy BioSystems Corporation
Energy Conversion Devices, Inc.
Energy International, Inc.
Energy Maintenance Service, Inc.
Energy Reclamation, Inc.
Energy Research Corporation
Energy Resource Corporation
Energy Services Group
Energy Unlimited
Energy-Efficent Combustion Technologies, Inc.
EnergySchmidt
EnerTech Environmental, Inc.
ENPAC Energy Pacific Corporation
ENRON Wind Systems, Inc.
ENSYN Renewables, Inc.
Entergy
Envergex LLC
ENVIRON International Corporation
Environmental Elements Corporation
Environmental Energy Services, Inc.
Environmental Energy Systems, Inc.
Environmental Engineering and Services Corporation
Environmental Resource Corporation
EnviroScrub Technologies Corporation
EPS Technologies, Inc.
ETS Laboratories
Excelsior Energy, Inc.
Exxon Production Research Company
Exxon Research and Engineering Company
F2 Associates
Fagen, Inc.
Falkirk Mining Company
Farm Credit Services of Grand Forks
Farmers Union of North Dakota
Farmers Union Oil Company
Farr Air Polution Control
First National Bank
Flavor Materials International
FlexEnergy, Inc.
Florida Power & Light
Fluid Energy Processing & Equipment Company
FMC Corporation
Fond du Lac Development Corporation
Foothill Engineering Consultants, Inc.
Foras Services, Inc.
Fossil Energy Research Corporation
Foster Wheeler Energy Corporation
Foster Wheeler Energy International
Foster Wheeler Environmental Corporation
Foster Wheeler North America Corporation
Fuel Dynamics, Inc.
Gas Technology Institute
GE Betz
GE Wind Energy, LLC
GE-EER
General Electric Corporation
General Motors Corporation
General Resource Technology
GeoSyntec Consultants
Gilbert/Commonwealth, Inc.
Giziibii Resource Conservation & Development*
Global Electric Motorcars, L.L.C.
Global Renewable Energy Partners
Gold Medal Bakery, Inc.
Grand Forks (North Dakota) Chamber of Commerce*
Grand Forks Activation Technologies, Inc.
Grand Forks Development Foundation*
Graymont Western US Inc
Great Northern Power Development, L.P.
Great Plains Gasification Plant
Great Plains Institute for Sustainable Development
Great River Energy
GreatPoint Energy
Griggs-Steele Empowerment Zone (EZ), Inc.
Groenewold, Gerald
Guardian Utilities Services, Inc.
H&A of New York
Haley & Aldrich
Harbison-Walker Refractories Company
Harnessing Dakota Wind*
Harsco Corporation, Heckett MultiServ Division
Hartland Wind Farm, LLC
Hassett, David and Debra
Hawaii Longline Association*
Hawaiian Electric Company, Inc.
Hazen Research, Inc.
HDR Engineering
Headwaters Energy Services Corporation
Headwaters Resources, Inc.
Headwaters, Inc.
Heartland Fuels Corporation
Heatmor, Inc.
Hess Corporation
Hibbing Taconite Company
Hitachi Power Systems America
Hobbs, Inc.
Hogan & Hartseon, LLP
Holcim (US), Inc.
Holme, Roberts, & Owen, LLP
Horsehead Resource Development Company
Houston Lighting and Power Company
HTI Labs and Industrial Consultants
Hughes Aircraft Company
Humphrey, Ferrington, and McClain, PC
Huntsman Petrochemical Corporation
Hurst & Henrichs Ltd.
Husky Industries
ICM, Inc.
Illinois Power Company
Independent Oil
INDEQ, LLC
Indian Head Mine
Indiana Coal Council, Inc.*
Indianapolis Power & Light Company
Industrial Contract Services
Innes Construction
Institute for Environmental Assessment
Integrated Environmental Technologies
Intera Information Technologies, Ltd.
Interez, Inc.
International Polymer Corporation
International Pozzlan Coating Corporation
International Silica Technolologies, LLC
Interstate Natural Gas Association of America
Interstate Power & Light Company
ISG Resources, Inc.
Ish Inc.
ITN Energy Systems
Izaac Walton League of America*
J.E. Sinor Consultants, Inc.
J.H. Huber Corporation
J.R. Simplot Company
Jackson Lumber Harvester Company, Inc.
JLG Architects
JVJ Enterprises, Inc.
Kennecott Energy Company
Kennedy Van Saun Corporation
Kerr-McGee Corporation
KFx Atlantic Partners
KFx Technology, Inc.
KFx, Inc.
Kiewit Mining Group, Inc.
KilnGas Research and Development, Inc.
Kimberly-Clark Corporation
Kimtam Associates
Knife River Coal Mining Company
Koch Carbon, Inc.
Kolberg-Pioneer, Inc.
Kvaerner Power Inc.
KVB, Inc.
L.A. Hoffman Center
LaFarge Dakota
LaFarge North America Inc.
Lauhoff Grain Company
LB Industrial Systems, LLC
Lehigh Cement Company
Lignite Energy Council*
Littoral Ecological & Environmental Services
LM Glasfiber
Lockheed Martin Energy Research Corporation
Lockheed Martin Idaho Technology Company (LMITCO)
Louisiana Independent Oil & Gas Association*
Louisiana Pacific Corporation
Lovelace Respiratory Research Institute*
Lower Colorado River Authority
Lyondell-Citgo Refining Company Ltd.
M.A. Mortenson Company
MacMillan Bloedel, Inc.
Major International
Malcolm Pirnie, Inc.
Manz Associates
Marathon Oil Company
Marsulex Environmental Technologies Corporation
Martin Marietta Energy Systems, Inc.
Marvin Windows and Doors, Inc.
Mason & Hanger Corporation
Master Builders, Inc.
MBI International
McBurney Corporation
MCC Technologies, Inc.
McCampbell Analytical, Inc.
MDU Resources Group, Inc.
Mercer Engineering, P.C.
Meridian Land and Mineral Company
Metals Engineering and Testing Laboratory
METCO Environmental, Inc.
Metso Power
Michigan Ash Sales Company
Michigan Consolidated Gas Company
Micon Wind Turbines
Microbeam Technologies, Inc.
MicroCoal Inc.
Midwest Generation EME, LLC
Miller & Chevalier Chartered
Mineral Resource Technologies, Inc.
Mineral Resource Technologies, LLC
Mineral Solutions, Inc.
Mineral, Metal & Mining Management Company
Minn-Dak Farmers Cooperative
Minnesota Chamber of Commerce*
Minnesota Corn Growers Association*
Minnesota Corn Research & Promotion Council*
Minnesota Dehydrated Vegetables, Inc.
Minnesota Power, Inc.
Minnesota Technology, Inc.*
Minnesota Valley Testing Labs
Minnkota Power Cooperative, Inc.
Mirant Corporation
Mississippi Lignite Mining Company
Missouri Basin Power Project*
Missouri Public Service
Missouri River Energy Services
Mobil Coal Producing, Inc.
Mobil Mining and Minerals Company
Mobil Research and Development
Mobil Technology Company
Mohler Oil Company, Inc.
Monex Resources, Inc.
Montana Coal Council*
Montana Power Company
Montana-Dakota Utilities Co.
Montec Associates, Inc.
Morley Law Firm, Ltd.
Mountain Pacific Quality Health Foundation*
Mountain, Inc.
MR&E, LLC
MSP Corporation
N-Viro Energy Systems, Ltd.
Nalco Mobotec, Inc.
Nashua Corporation
National Association of State Energy Officials*
National Commission on Energy Policy (Bipartisan Policy Center)*
National Corn Growers Association*
National Fisheries Institute, Inc.*
National Sun Industries
Nebraska Ash Company
NEG Micon USA
Nelson County Pigs Cooperative
NERCO Mining Company
Nevada Power Company
Newman Enterprises
Newpark Drilling Fluids
Nickel Producers Environmental Research Association*
Nodak Mutual Farm Bureau
North American Coal Corporation
North American Coal Royalty Company
North American Properties - Atlanta
North Central Wind Energy
North Dakota Association of Rural Electric Cooperatives
North Dakota Corn Growers Association*
North Dakota Corn Utilization Council*
North Dakota Farm Bureau
North Dakota Farmers Union*
North Dakota Lewis & Clark Bicentennial Foundation*
North Dakota Petroleum Council*
North Dakota Pigs Cooperative
North Dakota Roughrider Corporation
North Dakota Wetlands Trust*
Northern Alternative Energy, Inc. (NAVITAS)
Northern Canola Growers Association*
Northern Indiana Public Service Company
Northern Minnesota Wood Residue Development Association
Northwest Manufacturing, Inc.
Northwest Research, Inc.
NRG Development Company Inc.
NRG Energy, Inc.
NRG Texas, LLC
O'Connell & Associates, LLC
Occidental Oil Shale, Inc.
Ogden Martin Systems, Inc.
Ohio Edison Company
Old Ben Coal Company
Olin Chemical Corporation
ONDEO Nalco Company
ORYXE Energy International, Inc.
Otter Tail Corporation
Otter Tail Power Company
Otto Bremer Foundation*
Owens Corning
Owens-Corning Fiberglas Corporation
Pacific Power Company
PacifiCorp
PacMar, Inc.
Partners for International Training
PDVSA Services, Inc.
Peabody Energy Company
Peabody Holding Company, Inc.
Peat Technologies Corporation
Pellet Fuels Institute
Pembina River Basin Advisory Board*
Pembina Trail Resource Conservation & Development Council*
Pennsylvania Electric Company
PennWell Corporation
Perdue AgriBusiness, Incorporated
Peterka
Phillip M. McKenna Foundation, Inc.*
Phillips Coal Company
Phillips Petroleum Company
Phoenix Cement Company
Physical Sciences, Inc.
Pinnacle West Energy Corporation
Pittsburgh Mineral and Environmental Technologies, Inc.
Placer Dome U.S. Inc.
Portec, Inc.
Portland Cement Association
Portland General Electric Company
Power Engineers
Power Generating, Inc.
POWER International
PowerTech International
Pozzi-Tech
PPL EnergyPlus, LLC
PPL Montana, LLC
PPM Energy, Inc.
PRACS Institute
Prairie Coal, Ltd.
Pratt & Whitney
Pratt & Whitney Material Management, Inc.
Pratt & Whitney Rocketdyne, Inc.
Praxair
Premier Services Corporation
Presque Isle Power
Proctor & Gamble Company
Professional Supply, Inc.
ProGold
Progress Energy, Inc.
ProSource Technologies, Inc.
Providential Investments
Pruett-Schaffer Chemical
PSI Technology Company
PT Dakota Winds Harvest, LLC
PTI Environmental Services, Inc.
Public Service Company of Colorado
Public Service Electric & Gas Company
Puma Energy Corporation
Quadrant Corporation
Radian International, LLC
Ramsey Technology, Inc.
Raytheon Engineers & Constructors, Inc.
Red Lake Watershed District*
Red River Basin Board*
Red River Regional Council*
Red River Resource Conservation & Development Council*
Red River Watershed Management Board*
Reliant Energy, Inc.
Remediation Technologies, Inc.
Renewable Fuels Association*
Renewable Resources Research Institute
Research Triangle Institute International
Resource Engine, Inc.
Resource Technology Corporation
ReUse Technology, Inc.
Riley Stoker Corporation
RJ Lee Group, Inc.
RMB Consulting & Research
RMT, Inc.
Rochester Public Utilities
Roehrs Industries
Rolfes International
Rosemount, Inc.
Roy F. Weston, Inc.
Rural Energy Marketing
Sabine Mining Company
Salt River Materials Group
Salt River Project
San Miguel Electric Cooperative, Inc.
Sandia Corporation
Santee Couper
Sargent & Lundy, LLC
Sauder Woodworking
Schoen Associates
School of Engineering & Mines Foundation*
Schumacher Filters America
Schwing America Inc.
Science & Engineering Associates, Inc.
Sensor Research Development Corporation
Seperation Technologies, LLC
Shell Development Company
Siemens Energy, Inc.
Siemens Environmental Systems & Services
Silbrico Corporation
Simmons and Associates Engineers
Simpson Paper Company
Sioux Manufacturing Corporation
Smart Energy Solutions, LLC
SmithBucklin Corporation
Solar Sources, Inc.
Solar Turbines, Inc.
Solucorp Industries, Ltd.
South Carolina Electric & Gas Company
South Dakota Corn Utilization Council
South Dakota Soybean Processors
Southeastern Fly Ash Company, Inc.
Southern California Edison Company
Southern Company Services, Inc.
Southern Electric International
Southern Research Institute International
Southern States Energy Board*
Southwestern Electric Power Company
Southwestern Public Service Company
Specialty Minerals
Spectra Gases
Spectrace
SpinTek Membrane Systems, Inc.
Standard Laboratories, Inc.
Stanley Consultants, Inc.
Startec Environmental, Inc.
State of the Art Analytical
Stearns-Roger
Stewart, Nelson
Stites & Harbison Law Firm
Strat Company
Strata Corporation
Suburban Propane
Summerlin, LLC
Sunflower Electric Power Corporation
Suprex Corporation
Suzlon Wind Energy Corp.
SW Rural Economic Area Partnership (REAP) and Champion Alliance*
Swanston Equipment
Synkaryon, Inc.
Synthetic Materials
Tampa Electric
TDA Research, Inc.
Tech-Crete LLC, Inc.
Techniweave, Inc.
Technology Applications Group, Inc.
Temple In-Land, Inc.
Tenneco Company
Tennessee Valley Authority
Tesoro Petroleum Companies, Inc.
Test America
Texaco, Inc.
Texas Municipal Power Agency
Texas Utilities Electric
The Edward Orton Jr. Ceramic Foundation*
The Nature Conservancy*
The RETEC Group, Inc.
Theodore Roosevelt Medora Foundation*
Thermal Energy Systems, Inc.
Thermo Concepts, Inc.
Thermo-Pak Manufacturing, Inc.
ThermoChem Recovery International, Inc.
ThermoRetec Corporation
TIAX LLC
Tomsche & Tomsche, P.A.
TransAlta Centralia Generation, LLC
Trident International Trading, Ltd.
Trinity Specialty Compounding, Inc.
TRW Space & Defense
TU Electric
Tuttle Farmers Elevator
Twin City Testing Corporation
Twin Oaks Power
TXU Generation Company, LP
TXU Martin Lake Plant
TXU Mining Company, LP
U.S. Ash
U.S. Steel
U.S. Tuna Foundation*
Ulteig Engineers
Union Camp Corporation
Union Carbide Corporation
Union Electric, Inc.
Union Oil Company of California
Unison Transformer Services, Inc.
United Engineering Foundation*
United Engineers and Constructors, Inc.
United Technologies Research Center
Unitel Technologies Inc.
Universal Fuel Development Associates, Inc.
URS Corporation
Usibelli Coal Mine, Inc.
UT Battelle, LLC
Utilities Solid Waste Activities Group (USWAG)*
Utility Fuels, Inc.
UV Tech Company
Valmont Industries, Inc.
Valspar Corporation
Varian Associates, Inc.
Vestas - American Wind Technology, Inc.
Vining Oil Company
Viresco Energy LLC
W.L. Gore & Associates, Inc.
Walco International, Inc
Wanzek Construction, Inc.
Waste Policy Institute*
We Energies
Webster, Foster & Weston
Weiss Associates
Wells Fargo Bank Montana N.A.
Wells Fargo Foundation*
West Central Environmental Consultants, Inc.
Western Area Power Administration
Western Ash Company
Western Energy Company
Western Environmental Services & Technology Inc.
Western Kentucky University Foundation*
Western Region Ash Group*
Western Regional Biomass Energy Program*
Western Research Institute*
Western Syncoal Company
Western Syncoal LLC
Westinghouse Electric Corporation
Westinghouse STC
Westlands Water District
Westmoreland Coal Company
Westmoreland Coal Sales
Westmoreland Resources, Inc.
Westwood Professional Services, Inc.
Weyerhaeuser Company
Williams Pipe Line Company
Wind Associates, Inc.
Wind Energy Council*
Woodland Biomass Power, Ltd.
Xcel Energy
Xenergy, Inc.
Xethanol Corporation
Zeigler Coal Company
Zero Emissions Technology, Inc.
Zinc Corporation of America