| Xeres Wind (ARE) - manufacturer of wind turbines |
| Sharp Electronics - a leading USA manufacturer of solar modules |
| Hyundai Solar - high quality manufacturer of solar modules |
| SolarWorld - one of the largest USA manufacturers of solar modules |
| RWE Schott Applied Power Corp - manufacturer and distributor of solar power equipment |
| SMA-America - manufacturer of SunnyBoy and WindyBoy Direct-Grid Tie Inverters |
| Outback Power Systems - manufacturer of utility interactive and off-grid inverters and power system components |
| PV Powered - manufacturer of high efficiency grid-tie inverters |
| Southwest Windpower - manufacturer of smaller wind turbines |
| Aurora Vision Power One- solar & wind monitoring and reporting subsystems |
| Valmont Wind Energy - supplier of most of our wind towers |
| Solectria - manufacturer of mid to large scale inverters |
| Fronius USA - a leading supplier of residential and small commerical inverters |