Nabu Energy reviews
• last updated FEB 26, 2026Loading map...
The Verdict
Nabu Energy excels at the technical consultation that most installers rush. We found 87 reviews praising transparent, no-pressure sales, nearly all singling out engineer-level explanations of panel specs, inverter trade-offs, and permit timelines without the hard sell. One homeowner noted the team spent hours on the phone diagnosing a monitoring issue for free, trying to avoid a costly site visit. Another described receiving three system-sizing options tailored to current and future needs, with color-matched conduit and zero fastening issues on a 36-year-old tile roof. Workmanship earned a 4.8 score, driven by 73 positive mentions of neat installs, quality hardware, and attention to finish details like painting roof attachments to blend with exteriors. The main trade-off is responsiveness. We noticed 17 complaints about project-management gaps: missed appointments, weeks-long silences, and one install that stretched to six months instead of the promised three. If you want an installer who'll explain why a specific inverter model suits your roof angle and won't upsell you on oversized systems, the occasional communication lag is the price of working with a small, technically focused crew.
If you prioritize technical depth and honest system sizing over white-glove project updates, Nabu Energy delivers. Expect engineering-led consultations and skilled install work, but budget extra time for permit coordination and plan to follow up yourself if a week passes without word.
Reviews That Shaped Our Verdict
When Joseph C. decided to install a solar array and battery backup on his home, he spent more than two weeks researching options and walked into his initial conversation with Harsh ready to test the sales pitch. He found Harsh unusually straightforward — clear guidance on panel and battery choices that matched what Joseph had learned independently, which let him trust Nabu Energy to move forward. The installation ended up delivering exactly what he wanted: panels producing strong energy output and a battery backup that works flawlessly. The path wasn’t smooth — Nabu Energy operates like a small, price-competitive shop and that showed in thin support staff and spotty communication — and supply-chain delays stretched the project out by months. Still, the equipment was high-end and the crew did excellent work; Jose, the foreman, earned special praise for how well he managed the site. The practical takeaway Joseph leaves prospective buyers with is concrete: expect very competitive pricing and top-tier hardware, but be prepared to trade off polished communication and a fast timeline for that value.
On his tri-level, 36-year-old tile-roof home, Michael Morgan hired Nabu Energy to install 27 solar panels and two Tesla Powerwalls, and the whole process moved smoothly from first contact to long-term performance. Right away he noticed a different approach: engineers walked him through options patiently, no high-pressure pitch, and they offered three well-considered system proposals that matched both current use and future plans. He chose Nabu because the contract felt transparent and the team prioritized his interests. After signing, he scheduled a design review over Zoom where the installers methodically went through the proposal and answered every question. Nabu coordinated equipment deliveries in advance, everything arrived on schedule, and the installation crew showed up punctual, respectful, and highly skilled. The workmanship stood out in small, visible ways — conduits were color-matched to the roof tiles and house exterior — and in bigger technical respects: they fastened the array securely to an aging tile roof without a single issue. Ten months after activation the system has performed exactly as estimated; production numbers have been spot-on and the array, including the
Jason B. reached out to Nabu because the company had installed solar on his house when he bought it, and he wanted a quote to add a home battery. He talked with the owner on the phone and was promised multiple battery options, but a week passed with no follow-up. He called and emailed several times over the next month with no meaningful response. A lead he submitted through Yelp produced only a single period in reply. Eventually they reconnected and he signed a contract to move forward. After signing, the communication only got worse. The crew asked for his availability for a site visit; he sent multiple dates and heard nothing for a week, then got a 6 a.m. email telling him they would show up at 9 a.m. and someone needed to be there for one to two hours. A Zoom design meeting went off the rails when the whole team arrived ten minutes late and presented the wrong system on their slides. The contracts arrived riddled with errors; he returned corrected documents and waited over a week with no acknowledgement. When he warned he would cancel if he didn’t hear back in 24 hours, the lead promised a phone call that night — which never came. After more than two months of chasing quotes
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Serving customers for 5 years
Newer than most installers in the market.
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Excellent BBB standing. Strong complaint resolution.
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Reviews were posted naturally over time.
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What You Can Expect
In 2022 Gregory chose Nabu Energy to install new solar panels on his home. He found their pricing competitive and the installation neat and professional. The crew treated his property with care, giving advance notice and knocking on the door before coming onto the premises to make sure he was home. He walked away very satisfied and still remembers that small, respectful habit of announcing themselves as the most reassuring part of the experience.
Adrian R. signed a contract at the end of August for a 4.4 kW rooftop system on his three-story, ~2,400 sq ft house (11 × 400 W panels). He expected installation by September or October but the crew didn’t finish until late February — about six months after signing — which meant he kept paying full electric bills and lost some tax-credit timing. Early on, a roof inspection went off the rails: a confusion about the number of floors left the inspector without the right ladder, so they relied on satellite images instead of a hands-on check. That misstep fed a run of slow, frustrating back-and-forths when Adrian tried to tweak the proposal: one requested change was initially refused, another was told would raise the price, and the company declined to re-inspect the roof in person. Updates sometimes took weeks or months and often only came after Adrian started calling and messaging repeatedly. In the end, the installer implemented the change that was supposed to increase the cost, but never provided clear confirmation — so it remained unclear whether it was a mistake or a last-minute concession. One distinctive practical win: the crew agreed to stage panels using his backyard patio/
Deepak S. had a 6.03 kW solar system installed on his home that became operational in 2019. The installation moved smoothly: Will, the installer, coordinated with roofers and completed the panel mounting on schedule, and a roof specialist reviewed the work and confirmed its quality. In late 2020 the SolarEdge inverter failed; Deepak notified Nabu Energy, who quickly engaged SolarEdge, arranged a replacement inverter to be shipped, and Will helped fit the new unit. The system was back online within a month. The most memorable detail was the fast, hands-on follow-up—Will stayed involved from the original install through the inverter swap, delivering a quick turnaround when the system needed service.