Solar Power World
By Kelly Pickerel | February 23, 2026
U.S. solar industry veteran and unofficial historian Jeff Spies announced last week that the documentary film “Solar Roots – The Pioneers of PV” will make its official public debut at the Solar Roots Party in Grass Valley, California, which this year will be held over the Oct. 30-Nov. 1 weekend.
More than a decade in the making, this documentary passion project began in 2015 when Spies organized the first “Solar Pioneer Party” to honor the early pioneers of the solar PV industry. That event inspired the creation of the documentary, and after years of dedication, research and storytelling, “Solar Roots” is ready to be shared with the world.
At the Solar Roots Party, which is open to all, attendees will gather to celebrate the birth of the PV industry, recognize the innovators who championed the transformative power of solar energy and delivered clean energy to millions of people around the world. Following its premiere celebration, the film will be released globally and free of charge on Vimeo and YouTube, ensuring open access to the remarkable history and visionaries who helped launch the solar energy movement.
For Solar Roots Party event details, visit solar-roots.com.
Kelly Pickerel has more than 15 years of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World. Email Kelly.

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