PEP also built energy-efficient expanded styrene Hogan homes and trained the Navajos on how to build them. At the time, Phoenix Energy Products was the largest residential solar electric installer company in the United States. Phoenix Energy Products™ continues to foster relationships with the community. Our solar installation services are unmatched in Pride, Excellence, and Performance. PEP Solar has been around for decades, and it’s our holistic approach to reviewing your project needs and providing solutions with proven products that have made us the Valley’s leader in solar installation. Our PEP professionals are always excited to help people discover their own abilities to save lives, money, and our planet.