Part LED laboratory, studio, fabrication shop and product incubator.

With over 43 years of manufacturing experience, Holly Solar Products, LLC has the machinery, tools and expertise to design and fabricate your custom LED platform, prototype or lighting solution. We are family owned, operated and located in Petaluma, California since 1974. Holly Solar Products, LLC has been remained successful constant innovation and to this day we are one of the longest operating, United States based manufacturers of renewable energy equipment.


Bill Hollibaugh

Easier to spell and pronounce, the Holly in Holly Solar is derived from founder's name: Bill Hollibaugh. Bill is an artist, inventor and entrepreneur with a BA in Fine Arts and a Lifetime Teaching Credential from The State of California. 

During the 1970's back-to-the-land movement, Bill led college courses in Philo, California, titled: Country Skills for Urban Dwellers. In these workshops, he taught the fundamentals of sustainability through conservation. In the 1980's, Bill was a frequent guest of Owen Span on San Francisco’s talk radio station, KGO. During the segment he offered solutions on reducing grid reliance, earning him the nickname: Mr. Wilderness.

Holly Solar Products was founded in 1974 with the invention of the Holly Hydro Heater, a stainless steel jacket that heated water within wood burning cook stoves. Dubbed "the newest old idea", over 60,000 units were manufactured by hand over a 25 year production span and to this day the Holly Hydro Heater is still heating water within many off grid homes. 

As developments in alternative energy surfaced, Bill began exploring solar photovoltaics. During this period, Suntronics, Holly Solar's solid state division, manufactured, solar panels, charge controllers, volt meters and red LED lighting for renewable energy companies. Inspired by Nichia's discovery of the blue LED in 1996, followed by their invention of the white LED in 1998, Holly Solar Products switched gears to focus on products centered around LED technologies.  


Mike Hollibaugh

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Rosa Mejia

Originally of Mexican nationality and now proud of being an American citizen. 
Traveled abroad at the age of 19, reaching her first encounter with Holly Solar just a few weeks after arriving in the country, driven by an enormous curiosity to learn the work that she would make at Holly Solar. The first thing was to learn the language. She enrolled in ESL courses at the Santa Rosa Junior College, plus some electronics courses online.
She is a very versatile, dynamic and above all creative person this all helps her be a great addition to our small Holly Solar family.