September 2022 by Charles S.
I've worked with G.C.S. a few times and always with successful, pleasant, responsive and very reasonable results. Chris and Dan are great, knowledgable fellows. They won't claim to do what they're not able to do (I.e. big new installs), but their years of experience is invaluable for quickly troubleshooting and fixing my 15-20 year old electric solar system. Thankfully, they've been willing to come into Santa Clara Co. valley. Definitely 5 star vote from me. Charlie
