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We found a company with a troubling pattern of avoiding accountability when systems underperform. One homeowner paid $34,000 for a 26-panel system only to discover the installer never connected the inverter to WiFi for performance monitoring, then ghosted them when they asked for help. Another customer discovered their installer had designed the system with an inverter 2,000 to 3,000 watts short of what 76 panels require, causing six years of underproduction before another company diagnosed the mismatch. When things go wrong, reviews show the owner stops returning calls or pushes costly upgrades instead of honoring warranties. We did find 19 reviews praising long-term support, some from customers whose systems ran smoothly for over a decade. But 8 reviews describe the same evasive pattern ('not cost-effective to send a technician unless someone needed an install in my area'), and 4 detail serious design errors with disputed refunds. The inconsistency is the problem: you can't predict whether you'll get the company that replaces your inverter within a week or the one that goes silent for months while your electric bill doubles.
If you value predictable service over a gamble, skip this installer. The long-term support stories sound great until you realize other customers with the exact same issues got excuses, delays, and dodged calls instead of fixes.
Valerie H. discovered that the 76-panel solar system installed on her home came paired with a 7,000-watt inverter that was far too small for the design — roughly 2,000 to 3,000 watts short of what the system needed. She watched the array underperform from the start, phoned the company in 2009 and again in 2010, and received a string of explanations over the line but no meaningful inspection or fix. For six years the system produced below estimates until another firm diagnosed the mismatch; the undersized inverter eventually failed before it had even reached half of the advertised 10-year warranty period. Valerie invoked CSLB and California Energy Commission rules that require contractors to warrant system operation for ten years, but the installer refused to honor the warranty, stopped returning calls, and declined requests to inspect, diagnose, or repair the poorly designed system. She ended up paying thousands — the correct 10,000-watt inverter would have cost almost $4,000 — and faced an answering machine for months while the company denied responsibility. Her final, sharp point: buyers should insist on documented inverter sizing and proof of a licensed electrician on the job, a
Lori’s solar array went live in July 2007, when the company was still called Solar Electrical Systems, and for years it quietly did exactly what it was supposed to do. What stood out most came years later, when her annual net bill suddenly climbed to almost twice its usual amount and she called the same phone number she’d kept from the original install. Someone answered right away under the new name, confirmed it was still the same company rather than a buyout, and pulled up her system history on the spot. He walked her through possible causes, followed up with an email of instructions, and asked her to photograph the lights on the inverter behind her house; he was looking at a current satellite image too, because he even brought up the pool system she had added years after the first install. If something needs to be fixed, they already know what equipment to bring, which is the kind of long-term support that matters when a solar system is a serious investment and most newer installers won’t still be around decades later.
Billy D. had a seven-year-old solar system on his home when the inverter caught fire four months before he reached out to SES. He shut the unit down and avoided damage, but the original XANTREX inverter was well past its five-year warranty, so he called the company that had installed the array years earlier. He spoke with Ben, who dismissed the XANTREX as junk and offered two routes: a refurbished SMA inverter for about $450 plus installation with a one-year guarantee, or a brand-new SMA America SB2500HFUS for roughly $2,000 with a ten-year warranty. Ben sweetened the new-unit deal by saying SES could install it for $150 instead of $350 if they were already in the area, which would bring the total to $1,800. Convinced this was the safest long-term choice, Billy paid the $1,800 invoice on April 5, 2012, after Ben indicated the crew would be in the neighborhood “the week after next.” Weeks passed with no appointment. By May 1 he was calling; Cheri in accounts didn’t return him, and a mid-May call finally reached another rep, Mark, who claimed Ben had left the company and demanded an extra $267 to install the inverter. Billy pointed out the paid invoice and the prior agreement; a t
Passed screening
Passed screening
Among the longest-standing installers in the market.
Excellent BBB standing. Strong complaint resolution.
Reviews were posted naturally over time.
Lori’s solar array went live in July 2007, when the company was still called Solar Electrical Systems, and for years it quietly did exactly what it was supposed to do. What stood out most came years later, when her annual net bill suddenly climbed to almost twice its usual amount and she called the same phone number she’d kept from the original install. Someone answered right away under the new name, confirmed it was still the same company rather than a buyout, and pulled up her system history on the spot. He walked her through possible causes, followed up with an email of instructions, and asked her to photograph the lights on the inverter behind her house; he was looking at a current satellite image too, because he even brought up the pool system she had added years after the first install. If something needs to be fixed, they already know what equipment to bring, which is the kind of long-term support that matters when a solar system is a serious investment and most newer installers won’t still be around decades later.
Ernest’s 32-panel solar array went onto his home in 2010, and the setup delivered exactly the kind of savings he had been promised, cutting his electric bills to less than a dollar on average. The part that really set Solar Electrical Systems apart came years later, when a problem turned up with one of the support beams holding the panels. Rather than sidestep responsibility or point fingers at the builder, company president Greg Johanson came out to the house himself, looked things over, and had the system disconnected so the company could replace the beam at its own expense before reconnecting everything. That kind of follow-through left a clear impression: the company was still standing behind both the equipment and the workmanship long after the installation was finished.
Hassan came away from a Dec. 2016 installation on his home with a $34,000-plus system that included 26 panels, an SMA Sunny Boy inverter, and some roofing work, but one important piece never got finished: the inverter was never connected online, so he couldn’t track the panels’ performance data. He was told WiFi integration just wasn’t as developed at the time, yet the promised follow-up to add it never happened. For a project at that price, the missing monitoring felt like a sign that the attention stopped short once the equipment was on the roof.
Michael’s 12-year-old solar PV setup hit a snag when the inverter finally gave out, but the bigger surprise was that the company was still there to help even after its name had changed. After he called and got Greg on the line, the repair moved quickly: within a week, Greg sent installer Cesar out to the house to replace the unit with a new SMA Sunny Boy inverter and add three more panels. The updated inverter now links to the home’s Wi‑Fi, giving him solid performance reports and a system that feels brought back to life rather than simply patched up.
Brenda B. bought a solar system from the company about 15 years ago. She remembers the installation being handled professionally, but now that the system needs repairs the company refuses to send technicians. Instead, the owner has been sending forms and instructional videos, effectively pushing customers to "repair it themselves." After a decade and a half, she feels the company is not standing behind its product. The detail that sticks: rather than dispatching a repair crew, the company’s response so far has been paperwork and how‑to videos—something buyers should factor into expectations for long‑term service.
A few years ago Kathy C. went ahead with a large rooftop solar install that was pitched to nearly eliminate her electric bill. The sales rep promised her monthly charges would fall to roughly $20–$40. The design kept shifting: the team initially planned for more than 100 panels, then pared that back to the 70s because of space, and finally insisted newer, higher‑efficiency panels meant she didn’t need as many. In the end the system knocked about $400 off her bill, but summer bills still spike to nearly $2,000. She phoned repeatedly; the company first blamed LADWP for not crediting her properly, then after several calls a tech visited and declared the panels dirty. Frustrated, she gave up pursuing fixes. She even emailed owner Greg Johanson and got a reply, but no tangible resolution followed. What lingered for her was simple and specific: an expensive system that underdelivered when it mattered most, and no meaningful help even after escalating to the owner.
William first worked with the company when they installed his solar system years ago on his home, and the setup kept humming along for 15 years before the inverter finally gave out. Expecting a long wait for repair, he called in the problem and was surprised when a crew showed up the very next day, got the failing part replaced, and had everything running perfectly again. The standout here was the speed of the turnaround after a long stretch of reliable performance — the kind of service that turns a routine equipment failure into a one-day fix.
Jeff R. bought a house a year ago that already had a PV system installed by Solar Electrical Systems about seven years earlier. He discovered the inverter had died and the company initially stepped in: they arranged a manufacturer replacement and charged only a small labor fee. A month after that replacement the inverter failed again. He called Cory, who reassured him a technician would come by the end of the week if possible. The next week brought the same reassurance, then an explanation that it wasn't cost-effective to send a tech unless someone else nearby also needed an install — despite the unit being under warranty. Three weeks passed with no service visit; he watched his Edison bills climb while the array sat offline. As a business owner himself, he understood how much referrals depend on keeping customers happy, and what stuck with him was the contrast between the prompt warranty fix at first and the later, weeks-long lack of follow-up that left him paying full utility costs.
Michael H. had a 12 kW solar array installed by SES that ran smoothly for seven years until an inverter failed. When SES couldn’t send help for almost a month, he reached out to the inverter manufacturer, SMA, and arranged warranty shipping himself. SMA offers a $150 rebate to customers to help cover reinstallation; instead of sending that rebate to him, SMA mailed the check to SES. SES then charged $550 to remove the bad inverter and reinstall the replacement, and refused to forward the $150 rebate — claiming they had already “built-in” the rebate amount to the charge despite no indication of that on his bill. Between the month-long delay, the out-of-pocket service charge, and SES not returning calls to discuss the issue, he felt shut out of the process. Michael walked away not only frustrated by the $700 effective cost he incurred, but also prepared to take about $3,500 worth of upcoming pool-heating business to another company because of how the small $150 rebate was handled.
Long-term satisfaction for Go Green Solar Solutions drops to 3.2 ★ compared to early reviews. This is better than 49% of installers we looked at.
Long-term reviews carry the most weight in our methodology because they are most representative of what you should be paying for: a system that will perform for years.