Largest of its kind in California, Sonoma County power plant uses volcanic activity and steam to generate electricity. John takes the tour in this episode of Bartell's Backroads. Subscribe at: https://goo.gl/vai8Eu Find ABC10 online: https://www.abc10.com/ Sign up for our newsletter: https://www.abc10.com/email Stream ABC10 on Roku: https://channelstore.roku.com/details/63398/abc10 Stream ABC10 on Amazon Fire: https://www.amazon.com/Gannett-Broadcasting-ABC-10-Fire/dp/B01E0H2KZQ Stream ABC10 on AppleTV: https://itunes.apple.com/us/app/abc10-news-weather-traffic/id469397853?mt=8 Like ABC10 on Facebook: https://www.facebook.com/ABC10tv/ Like ABC10 on Instagram: https://www.instagram.com/abc10tv Follow ABC10 on Twitter: https://twitter.com/ABC10