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    Del Sol Energy

    4.2 (54 reviews)
    Open 8:00 am - 5:00 pm

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    4 months ago

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    3 years ago

    I'm so glad to report that I received the compensation for my referral yesterday! I appreciate that Del Sol kept to their promise!

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    5 years ago

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    5 years ago

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    7 years ago

    Had issues with system but Josh handled the problem and helped out with the cost of the true up. Thank you.

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    8 years ago

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    Page 1 of 2

    Del Sol Energy Reviews in Other Languages

    Ask the Community - Del Sol Energy

    Do you offer solar canopy or solar carport installation services for homeowners?

    Yes we do. Please call our office your a custom quote. 925-350-4121

    Don’t See Your Question? Ask Away!

    Review Highlights - Del Sol Energy

    Had issues with system but Josh handled the problem and helped out with the cost of the true up.

    Mentioned in 15 reviews

    Read more highlights

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    United Solar Electric

    United Solar Electric

    4.7
    (84 reviews)

    My wife and I purchased a new 19 panel solar system and Tesla Powerwall in mid 2025. The install…read morewas completed in October 2025. The crew and all of the people at United solar Electric were very responsive and professional. I would, and will do business with them again, (adding an additional battery). PG&E was a problem. PG&E was very slow with providing PTO (permission To Operate). We did not receive PTO until end of May 2026, over 6 months from the date when system was operational. PG&E will need to upgrade transformer (December ???) before we can send greater that 2000 watts back to the system. Right now, we have conditional permission to operate, limiting output to PG&E to 2.2 KW. To United Solar Electric's credit, they were with us the entire time dealing with PG&E and were just as irate with PG&E as we were. Thank you, United Solar Electric!

    My wife and I had a very concerning experience with United Solar Electric regarding their business…read moreethics and refund policies. We were interested in solar for our 1940s home and provided a deposit in good faith. However, after further inspection of our roof and the overall project viability, we decided not to move forward. When we requested our deposit back--before any equipment was ordered or installation began--the company initially refused, claiming it was 'passed' the point of a refund. It was a high-pressure situation where we felt they were trying to lock us into a contract we weren't comfortable with. While we did eventually receive our deposit back after pushing the issue, the initial refusal to return funds for work not performed was a major red flag. Homeowners should be very careful with the fine print here. If you are looking for a company that values transparency and customer comfort over just 'closing the deal,' I would suggest looking elsewhere. We're glad we didn't get stuck with them and are instead putting that money into improvements that actually fit our home.

    Sunlight Electri-Cal Solutions

    Sunlight Electri-Cal Solutions

    4.9
    (82 reviews)

    I can't say enough good things about Carlos Gomez from Sunlight Electri-Cal Solutions…read more I've been working on a non-standard solar setup using an EcoFlow Delta Pro Ultra X and EcoFlow Smart Home Panel 3, and finding a contractor who truly understood this type of system was incredibly difficult. I spoke with many contractors, and almost all of them sent salespeople who gave generic answers or tried to push cookie-cutter solutions that clearly didn't fit my setup. Carlos was completely different. From the moment he arrived, it was clear he wasn't a salesperson -- he's an engineer, and it shows. He took the time to deeply understand my system, reviewed actual spec sheets on the spot, and immediately identified issues that other contractors completely missed. Multiple companies told me Hyundai panels would work fine. Carlos checked the amperage limits, applied proper safety margin calculations, and clearly explained why those panels would not work with my EcoFlow system -- saving me from a costly mistake. He also walked me through: Proper panel selection within voltage and amperage limits Safe string configurations and series wiring How to maximize roof space while staying within code Permitting requirements I hadn't been told about before On top of that, Carlos identified critical code and safety requirements that no one else mentioned: Bollards required in the garage to protect battery units Correct battery placement to maintain required clearance from doors and entrances Heat detector requirements for battery installations in a garage These are all things that would have caused inspection failures later -- and Carlos caught them immediately. He spent well over an hour with me, climbed onto my roof to check for obstructions, inspected battery placement, reviewed wiring paths, and answered every question in detail without ever rushing me. What truly sealed the deal was how efficient and transparent the pricing process was. Carlos was able to turn around a detailed quote very quickly, and when I received it, I was honestly surprised -- it was a significant amount lower than every other quote I received, even though his evaluation was by far the most thorough. Given everything: His technical expertise The level of detail and care The ability to integrate with my existing system The fast turnaround And the much better pricing Choosing Sunlight Electri-Cal Solutions was a complete no-brainer. Carlos is knowledgeable, meticulous, honest, and genuinely passionate about doing things the right way. After meeting him, I completely understand why this company has such strong Yelp reviews. If you're in the Bay Area and need electrical or solar work done the right way, especially for a non-standard or custom system, I highly recommend Carlos and the team at Sunlight Electri-Cal Solutions.

    Carlos and team were great to work with, from proposal to permission to operate. I highly recommend…read moreSunlight Electric-Cal Solutions. I wouldn't call anyone else. Great value, great customer service. Couldn't have asked for a better experience.

    East Bay Power Systems

    East Bay Power Systems

    4.7
    (93 reviews)

    The product is good, the process left us wanting…read more Eric, David, Jose and the crew did an excellent job. My frustration was with the post installation process. I got answers from Darlene that did not make sense. Sometimes her computer was down other times her phone was down. Sometimes she would call to give me a message only to realize that she had called the wrong customer. Did not enjoy working with her. Finally, Kara engaged and we got the Permission to Operate about two months after the install. Supposedly Jeff (the Business Owner) is no longer with the company and has gone back East, so not sure who is leading their future efforts. For future customers: hang on to a portion of the payment till the Permission to Operate is received not just the installation.

    I was hoping my interactions with this business would be positive, but it was not. I spoke to Jeff…read moreand unfortunately he was unprofessional and discourteous. I provided the necessary information for my solar installation (including usage and current costs), but he was very combative when it came time to discuss my project. He refused to discuss a power purchase agreement, instead he tried to force an outright solar panel purchase, which I made clear was not an option. He offered no apology and no clear explanations about his actions. Free advice: if you are not interested in the job, just say so politely. Don't be rude, discourteous, and unprofessional.

    Synergy 768

    Synergy 768

    4.4
    (34 reviews)

    Purchased a $51,800 system only to find out a year later that my system was severely undersized…read morehaving to pay PG&E over $1000 at the True Up year end cost. When confronting the owner, Ed Cotas, about being undersized, he placed the blame on us! Now that SunPower filed bankruptcy Snergy768 hasn't offered any assistance at all. Been trying to get any sort of help since last year Nov, but no help at all. Be aware, AWFUL customer service.

    We have solar on our roof and wanted battery backup so we called these people at Synergy, who are…read moreTesla Dealers. They installed 2 Tesla PowerWall-3's for a cool $25,000. It took them weeks and they had never installed these devices before, and ran into numerous problems that required assistance from one guy who appeared to know what he was doing. They do not appear to be working properly. For instance our Ford EV trips the entire system and the system has to be booted back up. The power sold back is so low we are looking at a higher PG&E true up's than when we had no Power Walls. Synergy pointed the finger at Tesla, who said everything appears to be OK, but it really is not working and my PG&E bills show that. Synergy has taken no responsibility to help us diagnose what is happening and maybe it is because they have their money now so why bother with me? Without going into all the back and forth and very little help from Synergy, I will say that they simply stopped returning my phone calls or emails and are offering no more customer service in any way. These systems were put in 6 months ago and yet we know people with NO battery backup systems that pay nothing in true up's, so I ask myself why I wasted $25,000...unless this company does not know anything about the Model 3's and they were installed incorrectly. My only recourse now is to bring in a competent 3rd party company at my expense to look at the system. So the best I can say about Synergy is "buyer beware" and you have been warned.

    Del Sol Energy - solarinstallation - Updated July 2026

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