Solar Power Energy Experts

Located in Westlake Village, California, Solar Electrical Systems (SES) is Southern California’s largest and most experienced solar power energy contractor. With more than 33 years of experience in solar energy design and solar power installation solutions, we work closely with architects, general contractors and builders on both luxury residences and large-scale commercial projects.

In business since 1978, SES has installed thousands of luxury residential and customized, complex commercial solar energy systems. These include some of the largest affordable housing and solar carport systems in California. Solar Electrical Systems is dedicated to helping customers reduce or eliminate their electric bills by utilizing solar panels, saving taxes, and capitalizing on green energy initiatives.

Solar Electrical Systems has received an A+ Rating from the Better Business Bureau and is a two-time recipient of the Angie’s List Super Service Award.  Recognized within the solar energy industry for outstanding system performance and customer service, we do all the required paperwork necessary for new home solar rebates, inter-connection agreements, permits and HOA approvals.

Solar Electrical Systems Makes Solar Energy Simple for You!


A pioneer in solar energy systems, Greg Johanson is the President and owner of Solar Electrical Systems. He has been working in the solar power industry for more than 30 years – way before solar energy and green energy were considered “cool.” Greg has built Solar Electrical Systems into the largest, most experienced and most innovative full-service photovoltaic installer in Southern California. The company has installed over 1,500 residential solar arrays and over 250 commercial and municipality solar power systems in its 30-year history. With vast experience in the solar energy industry, Greg is recognized as one of the few experts in the solar power generation field.

Greg is listed in the Guinness Book of World Records for setting the first speed record for a solar car, piloting the Sunrunner, reaching a top speed of 41 mph.  He co-designed and developed the vehicle, which was the first car exclusively powered by solar energy.  He is also the inventor of a solar roof for the Toyota Prius, featured on