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    Luminalt Solar Energy Solutions

    4.9 (83 reviews)
    Open • 8:00 am - 5:30 pm

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    Vegetated roof with Luminalt solar collectors.
    David B.

    Trustworthy company that does excellent work. They installed collectors on my cantilevered solar canopy that tops my Net Positive Zero Cottage" residence in San Francisco.

    Luminalt Solar Installation

    I will add to the five star reviews. I've been around the solar business for a while, so I was aware that Luminalt was well-respected. I first met someone from Luminalt when I took a class at PG&E. The Luminalt person was the expert PG&E brought in to discuss working with legacy household infrastructure. When the city inspector shows up, sees the crew, and says, "Oh, you guys again. This will be quick and easy," you know you picked the right company. When it was time to replace the roof, acquire a solar system, and upgrade the electrical to support a heat pump heater, I got 11 quotes for solar using EnergySage. Luminalt does not participate in EnergySage and now I know why. Some of the bids that came in were flagrantly in violation of building codes or shady in some other way. Others were clearly loss leaders that would have to be changed to get approval. Luminalt was more expensive than any, but they also told me the truth in detail about what needed to happen with my electrical service (which was way less than I expected, thanks Luminalt). I had a roofer lined up, so I asked the roofer who does quality solar work. He said Luminalt. My neighbor was having extensive electrical work done and that electrician was clearly doing quality work. I asked him who to choose for solar. He said Luminalt. As other reviews state, Luminalt is more expensive because they hire locally in San Francisco and their crews are consistent and experienced. It is true that this is a polite, careful and courteous group of people all the way from sales to project management to installation to permitting to post installation. Now the capper. We received Permission to Operate yesterday, Dec. 19th. The original estimate was next March. Luminalt exceeding expectations again.

    Guillaume P.

    Just got a new system installed. Very professional experience all throughout + the installation crew was incredibly helpful & attentive to details once on-site (Pam & crew). The system looks great. Very happy. Big fan!

    Andrea R.

    After 15 years of being in the renewable energy industry, going solar was one of the first things on our list after buying a house. We chose Luminalt after speaking with Zach Sharpe and being impressed with their proposal and five star equipment. The installation crew - Victor, Tim, Theo, Jose and David - were fantastic and we can't wait to have our system interconnected by PG&E in the next few weeks. If you are considering going solar with Luminalt, I would recommend you sign your contract early in the year and confirm your install date as the tax credits are stepping down at the end of the next few years and the wait time for an installation can be lengthy as they get very busy.

    Our roof after Luminalt's installation
    Galen W.

    "Whoohoo! As good as it gets!" is not quite right. But, first the great stuff... We love Luminalt and think their people and services are both excellent AND superior to other options. We are genuine fans. Everyone we talked to, from salesman to engineer to project manager to customer services has been knowledgeable, accurate, and attentive. They carefully surveyed our roof and designed a system based on what we told them we wanted. Every (EVERY!) contact with them has been pleasant, professional, helpful, and successful in moving us to our goal of solar power. We very much like that they are a genuine San Francisco firm. Some of the other people who we talked with were basically general contractors who found local talent to install the goods they sold on an ad hoc basis, and their calls were coming from LA, if I remember correctly. So, if something goes wrong in a year, I guess these other guys would contract the repair work to any available engineer. Anyway, Luminalt impressed us because they HIRED full-time people, and their people are uniformly wonderful. We also liked engaging a woman-owned engineering firm who assigned a female engineer and project manager to our work. The system went in quickly, and has worked better than promised since we went live the last day of December. I've waited a bit before posting this review, just to be able to say the system is genuinely performing as expected. (We are actually getting more power from the panels than promised, but that is a function of the sunny-skies drought we are enjoying.) There have been zero problems or gotchas under Luminalt's control. The City changed its enforcement of fire codes which caused our project to morph somewhat, but even then Luminalt helped us alter the project so that our basic wants were still met. I don't think we could have done better than picking Luminalt. So, Luminalt is as good as it gets... for the moment. But,... The only frustration or caution we have with Luminalt is that they are so busy and backlogged! We signed in August, 2019 and were told to expect that installation could be delayed to early December because they were suddenly slammed with orders. In the fall we were told that installation actually would be in early 2020. For a number of reasons, that would cause problems, and Luminalt agreed to shoe horn us into their schedule. "Thank You!" for that. Really. But, we were told by the installers in December that people signing up then were going to have to wait 10 months. They are hiring... they even asked us if we knew certain types of people they need. But, right now they are badly backlogged. And, some of their over-busy-ness shows. We were told sometime in early November (I think) that they would try to install at our house the week of December 23rd with the modifications required by the change in City policy. We had to pump them for a revised contract and date confirmation in early December. And we didn't hear from them to confirm exact start time until Friday, December 20th when they said they'd be out Monday at 8:30-9:30. We were happy, but a bit more communication along the whole way of the project would have smoothed our nerves. Similarly, our expectations were not set about when we were going to learn how to control the system. The company knew that the engineer readying the system for the city inspector would help me download the apps and use them. But, I didn't know that and asked the installers about how I was going to control the system. The installers were reassuring but not quite sure of who was going to show me and when. An unqualified "As Good as it Gets" awaits learning that they're caught up and installation occurs, say... within a month of contract signing!

    I have to say I was skeptical that Luminalt had such excellent reviews, could they really be that great? My husband and I searched around and yes, we could have gone the cheaper route but I knew if something went wrong after the installation, I wanted to be able to have someone to call that could come out and fix it. Luminalt from the start were incredibly professional. They set up a zoom call where they went through everything that their service provided, how the installation would work, costs and overall usage and savings with solar. Once we agreed to move forward with them we had a project manager assigned to our house that came out and looked around to get a good assessment of the plan and layout. We were told our installation would take 4-5 days. The team arrived on time Monday morning. Everyone was wearing masks. Everyone introduced themselves to me and my husband. They were polite and courteous. They never left any of their garbage around from lunch or snacks during the day (which we have experienced when we have had work done on our house before with other workers). They swept and vacuumed at the end of each day. They would let us know when they were leaving for the day, and go through the status of the project. Their installation within our garage is beautiful. Seriously. It looks so good. Everything is nice and neat. A project we thought was going to take 5 days, they completed in 3 days! Solar panels, plus Tesla backup battery, plus car charger. They came back after 1 week to do the inspection with the city (which they set up so we didn't have to deal with any of it), which was quick and easy. After they left we noticed something with one of our lights and called them, they were back within 15 minutes. Fixed it in 5 minutes and were done. It has been a long time since I have had such great customer service. The 5 star reviews are completely accurate here. I would give more stars if I could. Yes, you are going to pay a little bit more BUT it is worth it! You get your own PM for the project so you have a point person to help guide you and answer all of your questions. You are supporting a LOCAL SF company, who not only does their job well, but are also incredible courteous and respectful of your house and space. There were at least 7 team members that were at our house each day who were knowledgeable and incredibly polite. I can't recommend Luminalt enough. If you are on the fence, go with them.

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    Ask the Community - Luminalt Solar Energy Solutions

    Review Highlights - Luminalt Solar Energy Solutions

    “Friends in Oakland raved about Noel Cotter and Luminalt, so we called them when our solar system malfunctioned.”

    Mentioned in 17 reviews

    Read more highlights

    Your Energy Solutions - Livermore comp shingle roof with solar installation.

    Your Energy Solutions

    (614 reviews)

    We could not be more delighted with the results we achieved working with the team at Your Energy…read moreSolutions. The many moving parts to our residential solar plus battery system, including the various entities, such as PG&E, Tesla, City inspectors, and the financial backers we opted to use all progressed seamlessly and, for us effortlessly, thanks to hard working individuals behind the scenes. In particular, Skyler could not have been more helpful, managing our project and acting as a point of contact. Others included David in sales who demystified the process, Varon who coordinated with the utility to ensure we met all requirements, and Gino, who collaborated with Maxwell Power (formerly HDM Renewable Finance), the clean-energy company that helped finance our residential system. On site, the design and install team did a great job keeping things simple. The entire system, including battery and thirteen panels, was installed according to Ramiros's expert design within just four hours. Good quality hardware was used to tie to the roof, which was inspected by our roofer and given a big thumbs up for not causing problems. But even before that, David our site survey tech, gave us the sense that all would proceed well, as he collected necessary data by drone, and made a favorable first impression with his personable approach. Toward the end of the multi-month process, which included time to get a new roof installed, we passed city inspection with YES tech, Dario, an extremely courteous young man, present to ensure we made it through that last step and PTO (permission to operate). YES has an excellent and well-deserved reputation because of these people and others who worked on our behalf. The company can do better automating some of the process, and to be fair, they say they are working on transitioning to a CRM software solution for this purpose. But, I can say that over a period of several months, I had excellent communication with many helpful people. Skyler in customer service was my primary contact and that made all the difference. My thanks to YES for helping us make this wonderful and complex project a reality. We love our new YES-backed system and look forward to working with the company again in the future.

    I had a frustrating experience with Your Energy Solutions regarding a warranty transfer. The…read morecontract stated that an additional charge would be incurred for the warranty transfer but did not disclose the amount. We were later charged $500 with no prior breakdown or explanation of the fee. I clearly communicated that I would be the one paying this charge. Despite that, the service department reached out directly to the buyer and asked who would be paying. This unnecessary contact created confusion and complications during the escrow process that could have easily been avoided. The lack of transparency on the warranty transfer fee and the poor internal communication caused more stress than necessary. Businesses handling real estate-related services should be more careful with both contract clarity and how they communicate with parties involved in a transaction.

    Sunlight Electri-Cal Solutions - Franklin certified

    Sunlight Electri-Cal Solutions

    (83 reviews)

    I'm a bit late in writing this as our system was installed last Oct 2025 but wanted to give a big…read moreshout out to Sunlight Electrical. My mom and I couldn't be happier with the service we were provided from start to finish. We contacted the business in late July of last year to see about installing a solar system on our home before the end of the year. Within in days, Alessandro was here to meet us in person and provided us with a comprehensive breakdown for solar options and pricing. We loved that we were treated like actual people instead of a number in a queue. Given that there was a slight backlog of jobs they had to work through we were assured that we would have our system fully installed and activated before the end of the year, which we did! It was great working with Nick who was our onsite rep and Juan was always available to answer any questions we had by phone (of which I had many). Despite the number of times I called, he was always patient with me and provided detailed answers that gave me a better picture of our installation and how our system would operate moving forward. I can't say enough about how amazing the whole process was. Looking at our electrical bills right now and we're in awe of all of the savings we're getting, which validates our decision to purposefully oversize our system. If and when we decide to install a car charging station in our home we're definitely going back to Sunlight!

    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.

    Clean Solar - Beautiful solar install on clay roof

    Clean Solar

    (480 reviews)

    Newhall, North San Jose

    All of a sudden the panels at my mom's house stopped producing energy and I was in a pickle because…read morethe installer went bankrupt years ago. Because of the good experience I had with having Clean Solar install panels at my house I reached out to them to see if they would service panels installed by another, and thankfully they accepted the job. After some back and forth with their customer support, they remotely assessed that the inverter failed and they would install a new one for a reasonable price. Clean Solar employee Jose arrived early for the install and he was very polite and relatable. He replaced the inverter and did not leave until he made sure that the system was back up and running and production was being reported in the app. I recommend Clean Solar to anyone needing their panels serviced or to install a new system. Jose is an excellent employee and my mom had a great experience working with him.

    **Update: Carl contacted us to apologize for the few negative experiences and they will definitely…read moretake our feedback seriously and will address and improve these issues. Btw I was going to bump this review to a 4 but working with Nick we decided on 5.** We had a complicated full house renovation this year and signed with Clean Solar for either the Tesla tiles or solar panels and we ended up choosing solar panels + Tesla power walls. I want to give special thanks (and the only reason why I didn't give a 0 star) and appreciation to the members listed as they deserved beyond 5 stars Bill, Nick, Jeremy, Rodger, Louis, Kevin, Albert, Alberto, Carl (CEO). Bill was amazing and helpful in explaining the process and helping us secure the initial funding. You are probably wondering why I am giving this solar company a 3 star. Well it takes 1 bad apple to ruin a team and this is the case. A three day project ended up taking 3+ weeks & we understand that the workload is extremely busy this time of year. However when 1 person is acting unprofessional, crossing the line, asking homeowners to borrow a usb cable to charge their cell phone, super loud, tries to impress (why), doesn't listen to clients (would walk away in mid conversation), act as if he is the owner of the company, talks way too much (not in a good way), talking about his side hustle business, a bit juvenile, not completing and complaining about the job in front of clients plus not showing up when he said he would to complete the job, leaving tools at the site and asking the homeowners to put it in their garage until he returns to pick it up, calls in sick last minute leaving the load to other team members plus more well then this becomes a problem and 0 stars (if possible) especially the amount of money you invest into this project. We also requested that this person not show up again but they kept sending him back. At the end of the project half of the Tesla walls were connected and working but the other half wasn't connecting. At one point our bedrooms electricity didn't work, it wasn't the breakers and Nick was awesome enough to take our after hours call and help us manually override those other 2 disconnected wall panels. The dream team (Nick, Kevin and Albert) resolved the connection and all is working now. Also, Nick stayed late to make sure our Tesla walls were configured and updated properly. Plus , a shout out to Jeremy for staying late as well to help fix a broken issue. Feedback: Organize a team that works well together to effectively complete the project. Provide sexual harassment training (this is excluding people listed here). If a female client doesn't feel comfortable with a person don't resend them back. Also if a homeowner (regardless of being the wife) calls and leaves a message please out of courtesy call back after all I am the client, work and pay the bills too (even though this is my husband's project).

    Occidental Power Solar & Energy Storage - Residential Solar Photovoltaic Electric System in San Francisco,  Battery Energy Stoarge System, Solar PV, Solar Repair, New Solar System

    Occidental Power Solar & Energy Storage

    (37 reviews)

    Crocker

    One of the worst local companies I've ever dealt with. Avoid at all costs. Bait and switch, left us…read morehanging with a leak for months, charged us for a visit even though after they disappeared for months and refused to provide the information that we contracted them for. Greg the owner is a particularly horrible person to deal with. He's a giant bully and I'm very upset that my neighbors caved to his threatening us by paying them for nothing. Seriously the worst. Can't believe they are even still in business. RE Greg's reply, saying he never dealt with me is an outright lie. I had both text and phone conversations with multiple people at Occidental including Greg, and we have emails to show that we specifically requested parts information and were told the way to get that was to complete an inspection. Everything in my review and this follow up is documented in writing. The tech who did the inspection told us in person as well that he'd provide that information within a few days, but we never heard from him and our follow ups to him went unanswered. Greg then specifically told me to follow up with him, not Noah, but claimed they don't provide that kind of part information, which they would have needed to tell us when we requested it instead of saying to get an inspection to do so. At each stage, nobody at Occidental seemed to even know what the issue with our system was! Noah had not been told anything prior to the inspection, and when we tried to follow up neither Ava in the office nor Greg seemed to have gotten any information from Noah's inspection. The repair estimate Greg refers to was not for the correct issue we had, and would have done work that Noah told us at the inspection was not needed. We repaired our system using a different company who of course is licensed! Why would you use a company that can't even communicate between their own staff? That Greg then billed us for the inspection anyway is beyond unreasonable.

    What started as a small talk with a stranger on the sidewalk in San Francisco with a very positive…read moreand nice person, developed to a walkthrough the facility and full conversation about solar installations and a great advice about how to proceed with a flat roof new solar installations. Thank you Greg. -Michael, Swift Restoration

    Luminalt Solar Energy Solutions - solarinstallation - Updated September 2026

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