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Questions answered after the installation are part of what OneGrid customers praise. A May 2026 reviewer singled out Cesar Pimentel for continuing to answer questions well after the install, while an April customer described him as their sales representative and main contact, responding to inquiries and taking care of obstacles. Google shows a 4.9-star average from 104 ratings. OneGrid advertises residential solar and battery storage in Massachusetts, Rhode Island and Connecticut, alongside commercial solar, solar shingles, smart panels and EV chargers. The company says it offers free estimates. Its website also prints HIC registration number 215001 as its own claim. A June 2026 customer described the process from consultation and system design through installation, inspection and final paperwork as smoothly handled. They credited Cody with patiently answering questions and guiding them through each stage. The April reviewer said OneGrid delivered what it promised in a timely fashion and praised Cesar’s help when obstacles arose. In a March 2026 review, a homeowner described Dexter and Thomas explaining the details to them and their wife. Tyler and Dillon did most of the installation, including work after dark at a reported temperature of 0°. The customer said they could not find a nail in the rock bed afterward. They separately praised Matt the electrician for neat work inside the house and answering questions while working, and Deb for handling numerous questions about the process. The homeowner also described OneGrid checking in once everything was running. A November 2025 reviewer described materials arriving the night before, followed by a crew that arrived on time and installed panels on both the main and side roofs. They said the crew finished ahead of schedule, with cables and a wall-mounted battery positioned as agreed, and praised the cabling and electrical work. In a March 2026 r/rhodeisland Reddit thread, a commenter said OneGrid was local, the price was good and the process was smooth.
“Onegrid was good. Local, price was good, and the process was smooth.”
I had an outstanding experience with OneGrid Energy from start to finish. The entire process—from the initial consultation and system design to installation, inspection, and final paperwork—was seamless and professionally handled. A special thanks to Cody, whose expertise and customer service were exceptional. He is a true subject matter expert who patiently answered every question and guided me through each step of the process. His professionalism, responsiveness, and friendly demeanor made the experience stress-free and enjoyable. I highly recommend OneGrid Energy to anyone considering solar. Their commitment to customer satisfaction and quality service is second to none.
Cesar Pimentel was amazing throughout the entire process. Not just the initial phase, but has been a tremendous resource for getting questions answered well after the install. His professionalism, knowledge, and helpfulness has been extremely impressive. His response time to getting back to me to answer my questions has been impressive. I highly recommend reaching out to him if you are even considering solar to see if it makes sense for you.
We were very pleased with the service and installation provided by One Grid, and in particular the services of our sales rep and main contact person, Cesar Pimentel. We had already talked to other solar companies, but when Cesar came and gave us his initial presentation on One Grid, we felt like they were the ones we would want to use. Cesar proved to be an invaluable contact who promptly responded to, and adressed, all our inquiries and concerns. I would recommend One Grid, and Cesar in particular, to anyone who is considering solar installation. They did what they promised to do, and in a timely fashion, and when we faced a few obstacles, Cesar was always there to take care of them. I really can’t recommend One Grid and Cesar enough, and we are extremely grateful for all the help he provided.
OneGrid was absolutely incredible with my solar installation. From setup to install to finalized pprwrk and them checking once everything was running.... couldn't have asked for or expected anything smoother. From Dexter and Thomas, who came to my house and sat down with me and my wife and explained every little detail..... to Tyler and Dillon who did most of the install even in the dark of night at 0°, these guys were crazy and very neat and polite....I couldn't find a nail in my rock-bed when they were done. I was extremely happy about that. Matt the electrician, was also very polite and neat inside my house, leaving it neater than he found it. His work was top notch as well as everything looked straight and tight, and he even answered questions while he was working for me. Deb, on the communication side of all this was remarkable, answering a barrage of questions from me at I'm sure not the best times during the days and not blinking once... she was also well learned and knew her stuff. My experience with ONEGRID was very pleasant as I learned alot along the way. These guys are not just there to throw stuff on your roof.... they're there to install equipment for you that will benefit you(if it doesn't, they'll tell you that too) and they help explain it from start to finish..... Trust these guys to do a neat clean job at your house. Thank you Guys and Girls at ONEGRID... I'm truly grateful and happy with your service!!!
The materials were delivered the night before. The crew showed up at the right time and started working right away. Seems like a very experienced team and hardly any conversations needed. They installed our panels on the main roof and on the side roof. Very efficient and they finished before time. Cables lined up as agreed. Battery in the middle of the wall and lined up as agreed. Cabling and electrical work was excellent as well. In our previous house we had solar as well; this crew from One-grid was significant better. Highly recommend them and a great experience.
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Solar designed around a peaky Victorian roof5.0
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