We built our client list by performing one successful project after another. Since our start in 1989 we have added value for more than 140 clients on projects located in more than 20 countries. We are proud to list our clients here.
| Acciona Solar Power | LCRW Power |
| Alberta Investment Management, Corp. | LG&E Power Systems |
| Alta Gas | Luz International, Ltd |
| Androscoggin Energy | Luz II |
| AES | M&N Wind Power |
| ALLCO | Malacha Energy |
| Alliant Energy | Malaysian Newsprint Industries |
| Allison Ranch | Marubeni |
| American National Power | MatlinPatterson Global Advisors |
| Arco Products, Inc. | Mid Pac Petroleum |
| Arroyo Energy | Mid-Continent Power |
| Astoria Energy | Millar Western Power |
| Barclays Bank | Minera Panama |
| Barrick Gold | Mission Energy |
| Basic Energy | Mistral Power Corporation |
| Beacon Solar | Montauk Energy |
| Bechtel Power | Monte Rio |
| BHP Power, Inc. | Nichimen |
| Black & Veatch | Noble Group |
| BP Alternative Energy | Northeast Energy |
| Bright Source Energy | Oak Creek Energy |
| Carretere Mexicali-Tijuana | OxyChem |
| City of Ventura | Panda Energy International |
| City of Vernon | Pattern Wind |
| City of Victorville | Pedregal Power |
| Clarksdale Public Utilities Commission | Portland General Electric |
| CMS Generating | Pristine Power |
| CNG Energy | PSEG Global |
| Cobisa-Person Power Company | Rady Children's Hospital San Diego |
| Colorado Energy Management | Raytheon/Ebasco |
| Constellation Generation Group | Reid & Priest |
| Coral Energy | Reliant Energy Power Generation |
| Diamond Energy | Rio Bravo Fresno/Rocklin |
| Diamond Generating Company | Roquette America |
| Dominion Energy | Rutgers University |
| Doswell Limited Partners | Salt River Project |
| Duke Energy | San Diego Gas & Electric |
| Duke-Fluor Daniel | San Diego Union Tribune |
| Dynegy | SeaWest Services, Inc. |
| East Windsor Cogeneration | Sempra Energy |
| EDF Renewable Energy | Shaw Group |
| EGE Haina | SkyGen Energy |
| El Paso Energy | Smith Cogeneration |
| Elk Hills Power | Solar Turbines |
| EnergySource / Hudson Ranch Geothermal | Southern Electric International |
| EnerTech Environmental | Tanir Bavi Power Company |
| Enron Power | TAQA Wind |
| Energy Power Group | TBG Cogen Partners |
| ESBI-Hartwell | The Gas Company |
| Estancia Biomass | Tomen Power Corp. |
| Fletcher Challenge | Tondu Energy |
| Ford Motor Company | Tortosa Energia S.L. |
| Fort Chicago Energy Partners | TransCanada Energy |
| FPL Energy | Transco Energy Ventures |
| Gilroy Energy | Trona Operating Partners |
| Global Renewable Energy Partners | Twin Oaks Power |
| Golden Valley Electric Association | Union Bank of California |
| Gordonsville Energy | Union Fenosa |
| Green Ridge Power | University of Arizona |
| GREP | US Energy |
| Hannon Armstrong | US Generating Company |
| Hawaii Water Service Company | US Operating Services Co. |
| High Desert Power Trust | US Power Generating Company |
| Inland Energy | US Renewable Generation |
| Inland Pacific Energy | Veresen, Inc. |
| Invenergy LLC | Wärtsilä Development and Financial Services |
| Irvine Company | We Energies |
| Jamaica Energy Partners | Wellhead Electric |
| JP Morgan | WestCoast Power |
| Kramer Junction Company | Wisest Corporation |
| Lake Superior Power | WPS Power Development |