(Click on any state/province)

* NWPPA Members Alaska  Alaska Electric Light & Power Company * Alaska Power & Telephone Company Alaska Village Electric Cooperative * Anchorage Municipal Light & Power * Barrow Utilities & Electric Cooperative * Chugach Electric Association, Inc. * Copper Valley Electric Association * Cordova Electric Cooperative * Golden Valley Electric Association * Homer Electric Association * Ketchikan Public Utilities * Kodiak Electric Association * Kotzebue Electric Association * Matanuska Electric Association * McGrath Light & Power Co. Naknek Electric Association, Inc. * Nome Joint Utility System Nushagak Electric & Telephone Cooperative Inc. * Petersburg Municipal Light and Power * Seward Light and Power * Sitka Electric Dept. * Unalaska Electric Utility * Wrangell Light Department *

Arizona  Arizona Public Service Company Page Electric Utility  Salt River Project

California  Alameda Power & Telcom Anaheim Public Utilities Anza Electric Cooperative Azusa Light & Water Department City of Banning City of Gridley * City of Headlsburg * City of Lompoc * City of Needles City of Shasta Lake Colton Electric Utility Hercules Municipal Utility * Imperial Irrigation District Lassen Municipal Utility District * Los Angeles Dept. of Water & Power Merced Irrigation District * Modesto Irrigation District Northern Calif. Power Agency * Pacific Gas and Electric Company Palo Alto Utilities Dept. Placer County Water Agency Plumas-Sierra Rural Electric Cooperative * Redding Electric Utility * Riverside Public Utilities Roseville Electric Sacramento Municipal Utility District * San Diego Gas & Electric Company  Silicon Valley Power Southern California Edison Corporation - SCECorp Southern California Public Power Authority Transmission Agency of Northern California Truckee Donner PUD * Turlock Irrigation District * Ukiah Utilities Yuba County Water Agency

Idaho  Bonners Ferry Electric Department * City of Heyburn City of Soda Springs City of Weiser * Clearwater Power Company * Fall River REC, Inc. * Idaho County Light & Power Cooperative Assoc. * Idaho Falls Power * Idaho Power Company * Kootenai Electric Cooperative * Northern Lights Inc. * Rupert Electric Department * Salmon River Electric Cooperative United Electric Coop Inc. *

Montana  Beartooth Electric Cooperative, Inc. * Big Flat Electric Cooperative * Central Montana Electric Power Cooperative * Electric City Power, Inc. * Fergus Electric Cooperative * Flathead Electric Cooperative * Glacier Electric Cooperative * Goldenwest Electric Cooperative Hill County Electric Cooperative * Lincoln Electric Cooperative, Inc. * Lower Yellowstone REA Marias River Electric Cooperative McCone Electric Cooperative Mid Yellowstone Electric Cooperative Mission Valley Power * Missoula Electric Cooperative * Northern Electric Cooperative Northwestern Energy (formerly Montana Power Co.) Park Electric Cooperative Ravalli County Electric Cooperative * Sheridan Electric Cooperative Southeast Electric Cooperative Southern Montana Electric G&T Cooperative, Inc. * Sun River Electric Cooperative, Inc * Troy Power & Light Upper Missouri G&T Electric Cooperative * Vigilante Electric Cooperative , Inc. Yellowstone Valley Electric Cooperative *

Nevada  Boulder City City of Fallon Mt. Wheeler Power Overton Power District No. 5 * Valley Electric Association, Inc. * Wells Rural Electric Company *

North Dakota Basin Electric

Oregon  Ashland, City Of Power & Telecommunications Utilities * Blachly-Lane County Cooperative Association * Bonneville Power Administration * Canby Utility * Central Electric Co-op Central Lincoln PUD * City of Bandon, Electric Dept. * City of Cascade Locks * City of Drain Light and Power City of Forest Grove, Light & Power Department * City of Monmouth * Clatskanie People's Utility District * Columbia Basin Electric Cooperative * Columbia River PUD * Consumers Power Inc. Coos-Curry Electric Cooperative, Inc. * Douglas Electric Cooperative* Emerald PUD * Eugene Water & Electric Board * Harney Electric Cooperative Hermiston Energy Services * Hood River Electric Cooperative * Lane Electric Cooperative * McMinnville Water and Light * Midstate Electric Cooperative, Inc. * Milton-Freewater Light and Power * Northern Wasco County PUD * Oregon Trail Electric Consumers Cooperative, Inc. * PacifiCorp * PNGC Power * Portland General Electric * Salem Electric * Springfield Utility Board Tillamook PUD * Umatilla Electric Cooperative * Umpqua Indian Utility Cooperative * Wasco Electric Cooperative * West Oregon Electric Cooperative, Inc *

Washington  Alder Mutual Light Company* Asotin County PUD * Avista Corporation * Benton PUD * Benton Rural Electric Association * Big Bend Electric Cooperative Centralia Light Department * Chelan County PUD * Cheney Light Department * Chewelah Light Department City of Blaine Public Works Department * City of Ellensburg * City of Milton * Clallam County P.U.D. No. 1 * Clark Public Utilities * Columbia REA * Cowlitz County PUD * Douglas County PUD * Elmhurst Mutual Power & Light Co. * Energy Northwest * Ferry County PUD * Franklin PUD * Grant County PUD * Grays Harbor PUD * Inland Power & Light Company * Jefferson County PUD No. 1 Kittitas County PUD * Klickitat County PUD * Lakeview Light & Power * Lewis County PUD * Mason County PUD No. 1 * Mason County PUD No. 3 * Modern Electric Water Company * Nespelem Valley Electric Co-op * Okanogan County Electric Cooperative* Okanogan County PUD No. 1 * Orcas Power & Light Company * Pacific County PUD No. 2 * Parkland Light & Water Company * Pend Oreille County PUD No. 1 * Peninsula Light Company * Port Angeles, City of Port Angeles Public Works and Utilities Department * Puget Sound Energy * Richland Energy Services Seattle City Light Skagit County PUD No. 1 * Skamania County PUD No. 1 * Snohomish County Public Utility District * Steilacoom, Town of * Sumas, City of * Tacoma Public Utilities * Tanner Electric Cooperative * Town of Eatonville * Vera Water & Power * PUD #1 of Whatcom County Yakama Power *

Utah Bountiful City Light & Power Deseret Power Murray City Power Utah Association of Municipal Power Systems (UAMPS) Utah Municipal Power Agency

Wyoming  Big Horn Rural Electric Company Carbon Power & Light, Inc. City of Gillette Cody Electric Division High Plains Power, Inc. Lower Valley Energy * Powder River Energy Corporation Wyoming Municipal Power Agency

Canada  Alberta Watt Exchange ATCO Electric British Columbia Hydro and Power Authority City of Grand Forks * City of Medicine Hat City of Penticton Enmax Corporation - Calgary's Electric System EPCOR Utilities Inc. Lethbridge Power* Nelson Hydro * New Westminster Electric Utility Commision, City of Northwest Territories Power Red Deer Electric Light and Power Department Summerland Power

Associate Members A-D Technologies ABB Inc. ABC Professional Tree Services Inc. Accent Business Services Accu-Read Inc. Aces Power Marketing Aclara Allwire, Inc. Altec Industries Anderson & Wood Construction Company, Inc. Apogee Interactive, Inc. Aqua-Tronics Inc. Aquamarine Power Arch Chemicals, Inc. Argus Media Inc. Ater Wynne LLP Atlas Markets Autodesk Automated Energy, Inc. Avista Energy, Inc. Barclays Capital Bell Lumber & Pole Co. Bert Technologies BIS Consulting, LLC Border States Electric Supply Brown & Kysar, Inc. Brown's Agency Northwest Burndy LLC Burns & McDonnel Engineering Co. Butsko Utility Design, Inc. C. Richard Nordstrom Cable Huston Benedict Haagensen & Lloyd LLP Carlson Sales Christenson Electric, Inc. Clevest Solutions CoBank Commonwealth Associates, Inc. Convectair Inc. Cooper Power Systems Cooperative Response Center Corey Delta Constructors CTC Cable Corporation CVO Electrical Systems LLC D'Ewart Representatives L.L.C. D. Hittle & Associates Daffron & Associates, Inc. dataVoice David Evans and Associates, Inc. David Hatch and Associates DCS — Morgan/Basler Electric Designer Decal, Inc. DIS-TRAN DJ's Electrical, Inc. Dryden & LaRue Inc. Duncan, Weinberg, Genzer & Pembroke, P.C. Dustman Enterprises, LLC EES Consulting Elcon Associates Inc. Electric Power Systems Electrical Consultants Inc. Elster Energy Conservation Training Company EnerVision, Inc. Estrada Consultants ETG, a Dvision of Westwood Evergreen Consulting Group Evergreen Financial Services (EFS) Evergreen Job & Safety Training Evluma FCS Group FDJ Engineering & Construction, P.C. Federated Rural Electric Insurance Exchange FFPE FLIR Systems Fluid Market Strategies GAD Consultants, inc. Galtronics Telemetry GDS Associates GE Energy General Pacific, Inc. Genics, Inc. Gilmore Research Group Givens Pursley LLP Global Energy Partners Global Power Supply, LLC Golder Associates Inc. Goldstreet Design Agency, Inc. Gordon, Thomas, Honeywell, Malanca, Peterson & Daheim, PLLC Gore Electric Co., Inc. Grand Coulee Project Hydroelectric Authority H2 Pre-Cast Inc. H2E, Inc. Hanlon Group, Inc. Hansen Supply Company Hanson Pipe & Precast Hardy Energy Consulting HD Supply Utilities, Ltd. HDR Hees Enterprises, Inc. Henkels & McCoy Inc. Hi-Line Engineering, LLC — A GDS Company H J Arnett Industries Houston Wire & Cable Company Hubbell Power Systems Inc. Hy-Pro Filtration Hydrodec North America, LLC Iberdrola Renewables Ice Energy IEC Corporation Independent Inspection Co. INNER-TITE Corp. INTEC Services, Inc. ITRON JACO Environmental Inc. JBR Environmental Consultants Inc. JH Kelly, LLC Jordan Transformer JV Home Energy Solutions, Inc. K-Line Insulators USA Kassbohrer All Terrain Vehicles, Inc. KVA Electric, Inc. LD Jellison, Inc. L&S Electric, Inc. Landis+Gyr, Inc. Lefor Utility Sales & Associates, Inc. Lift-It Manufacturing Co. Liz Loomis Public Affairs Lockard & White Lockheed Martin LS Power Development LLC M.W. Bevins Company Macquarie Energy LLC Magnum Power, LLC Management Associated Results Company, Inc. Marne & Associates, Inc. McDowell Rackner & GIbson PC McFarland Cascade McIntosh Utility Services & Training (MUST) McKaig Evergreen McLaren Inc. Megger Microsoft Corp. Milsoft Utility Solutions Moloney Electric, Inc. Montana State University Morgan Mequire Moss Adams LLP Mountain Power Construction Company mPower Innovations MSE-Tetragenics MWH National Information Solutions Cooperative (NISC) National Joint Utilities Notification System, Inc. (NJUNS) National Rural Telecommunications Cooperative (NRTC) Nesco Sales & Rentals New Pig Corporation NextEra Energy Resources Nielson, Hurtado & Associates Noram-SMC, Inc. North Pacific Group North Sky Communications Northwest Energy Efficiency Alliance (NEEA) Northwest Line Constructors Chapter (NECA) Northwest Lineman College (NLC) Northwest Open Access Network (NoaNet) Northwest Power & Conservation Council Northwest Utility Sales, Inc. NorthWestern Energy, LLC Novinium NuEra Technologies, Inc. Oldcastle Precast, Inc. Osmose Utilities Services, Inc. Pacific Metering, Inc. Pacific Steel Structures, LLC Pacific Truck Colors, Inc. Pacific Underwriters Corp. Peak Measure Pennington Crossarm Co. Pexco LLC Pike Energy Platt Electric Supply Pole Maintenance Company Potelcom Supply, Inc. Potti Corp. USA, LLC Powel Inc. POWER Engineers, Inc. Powerex Corp. PowerSecure Powertrusion Products ProCore Solutions Professional Computer Systems (PCS) Professional Training Systems, Inc. ProGlass Inc. Protective Equipment Testing Laboratory R.W. Beck Inc. an SAIC Company Radar Engineers Redragon Oil & Gas Systems Int'l Inc. Reinhausen Manufacturing Inc. Resource Associates Int'l Inc. Riverside Manufacturing Co. Ruggedcom, Inc. S&C Electric Co. Sabre Tubular Structures San Carlos Irrigation Project Schweitzer Engineering Laboratories, Inc. Scott Engineering, Inc. Seattle-Northwest Securities Corp. SEDC Sempra Energy Trading Shell Energy North America Sherman Reilly Inc Siemens Energy, Inc. SlipNot Metal Safety Flooring SML Consulting SNC-Lavalin T&D Solar Electric Power Association Solomon Corporation Specialty Engineering, Inc. (A Division of Engineered Solutions Group) Stanley Consultants, Inc. Stantec Consulting, Inc. Steele Associates Architects LLC Stella-Jones Corporation Stephens, McCarthy, Lancaster, LLC Strategies 360 Substation Solutions, LLC Substation Technical Resources Inc. T-Line Electric TBH & Associates TCI of Alabama, LLC Tech Products, Inc. Technical Sales — Northwest Terasen Gas Inc. TEREX Utilities The Energy Authority (TEA) The Okonite Co. The Seminar Group Thomas & Betts - Steel Structures Division Thomas & Betts - Utility Products Group Tiocco Filtration Systems Titan Truck Equipment/Nelson Truck Equipment Transformer Diagnostics Testing, Inc. (TDT) Transformer Technologies Trayer Engineering Corp. TriAxis Engineering, Inc. Tulstar Products, Inc. Turkenburg Power Systems Inc. Twenty First Century Communications (TFCC) Tyco Electronics — Energy United Sales Associates, Inc. Uticom Systems, Inc. Utility Financial Solutions LLC UtilX Corporation Valley Nut and Bolt Co., Inc. Valley Transformer, Inc. Valmont-Newmark Van Ness Feldman Veolia Environmental Services, LLC Virginia Transformer Corp. Voith Hydro Wagner-Smith Equipment Wartsila North America, Inc. Washington Forestry Consultants, Inc. Waukesha Electric Systems WESCO Distribution Inc., Utility Sales Western Area Power Administration (WAPA) Western Cultural Resource Management, Inc. (WCRM) Western Wood Preservers Institute Wilson Construction Yukon Energy Corp. ZE PowerGroup Inc.

Associations/Agencies Alaska Power Association (formerly ARECA) Alberta Utilities Commission American Public Power Association (APPA) Association of Washington Cities (AWC) Association of Yukon Communities Bonneville Environmental Foundation Bureau of Indian Affairs Bureau of Land Management - Oregon & Washington California Municipal Utilities Association (CMUA) Canadian Electricity Association Department of Energy Edison Electric Institute (EEI) Electric League of the Pacific Northwest Electric Power Research Institute (EPRI) Energy Supply Association of Australia Energy Information Administration Environmental Protection Agency Region 10 Federal Energy and Regulatory Commission (FERC) Foundation for Water and Energy Education General Accounting Office Golden State Power Cooperative Idaho Consumer-Owned Utilities Association Intermountain Rural Electric Association International Brotherhood of Electrical Workers (IBEW) Large Public Power Council Montana Electric Cooperative Association National Association of Regulatory Utility Commissioners National Electrical Contractors Association National Energy Foundation National Rural Electric Cooperative Association (NRECA) National Rural Utilities Cooperative Finance Corporation (CFC) Nevada Rural Electric Association Northeast Public Power Association Northwest Gas Association Northwest Power and Conservation Council Northwest Power Pool Northwest Requirements Utilities Northwest RiverPartners NW Energy Coalition Oregon PUD Association Oregon Rural Electric Cooperative Association OSHA Pacific Northwest Utilities Conference Committee Pacific Northwest Waterways Association Public Power Council (PPC) Public Utility Risk Management Services Ruralite Services Inc. South Alta Rural Electrification Association Southwestern Power Administration Tennessee Valley Authority THOMAS: Legislative Information on the Internet University of Washington Power Engineering Professional Program U.S. Army Corps of Engineers U.S. Department of Energy Efficiency and Renewable Energy US Environmental Protection Agency (EPA) US Nuclear Regulatory Commission Utah Associated Municipal Power Systems (UAMPS) Washington PUD Association Washington Rural Electric Cooperative Association Western Area Power Administration Western Area Power Administration - Energy Services Program Western Electricity Coordinating Council Western Energy Institute Wyoming Rural Electric Association

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