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Alternative Energy Systems delivers solid workmanship but stumbles badly on project timelines and customer compensation. One homeowner watched their system sit idle for nearly a year after signing a contract with projected completion in December, only to have the panels finally go live the following February. The installation crews earn consistent praise across dozens of reviews for clean panel mounting and thorough electrical work, and 52 reviewers mentioned workmanship quality with almost no complaints. But the office struggles to manage schedules and communicate delays. We found 17 reviews describing projects that dragged months past the original estimate, often with management refusing to waive fees or reimburse utility bills despite the company missing its own deadlines. Meanwhile, post-installation support shows real commitment. One couple had AES chase down a SunPower recall eight years after their install, working persistently until the fix was done right. If you can tolerate uncertainty around start dates and need a crew who won't vanish after flipping the switch, the quality may justify the headaches.
If you value predictable timelines and proactive communication, you'll likely find this company frustrating. But if you're willing to weather delays for installers who'll still show up years later to handle a manufacturer recall, the long-term support earns them consideration.
Thomas G. signed a contract for a residential solar installation on 3/30/23 and ended up waiting nearly a year for the system to be fully operational. He discovered that, while the front-line crew—sales/project reps, installers and electricians—were consistently courteous, knowledgeable and produced solid workmanship, the project stalled because of management-level problems and staff turnover in the project design role. He entered the deal with an estimated start on 9/26/23 and a projected completion of 12/20/23. The installer didn’t actually begin work until mid‑January 2024, completed the physical installation on 2/14/24, and the county inspection happened on 2/22/24. As of 3/4/24 he was still waiting for the utility Permit to Operate (PTO); company staff explained that the utility can take up to 30 days to issue a PTO. Because the company missed the promised timeline, Thomas asked for compensation. The company credited him $263 toward his December PG&E bill but refused to provide the additional $553.65 he requested for January–February or to waive the $592 final permit fee in lieu of that compensation. He found that approvals for any further discounts had to pass through a经理
Debbie had AES install SunPower equipment years earlier and then, eight years on, encountered a manufacturer recall. She and her husband Ted turned to AES to handle the paperwork and repairs, and AES dug in—pushing through the recall process, coordinating with SunPower, and following the case until the fixes were completed. The couple singled out the persistent, competent work of Carmy, Sandro?, and Eric for making the difference. What lingered from their experience was not the original sale but the company’s willingness to stay involved long after installation and see a complicated recall through to a proper resolution.
Will S. expected a straightforward solar job on a roof rated for 30 years that was about halfway through its life. He put down a $500 deposit, then discovered the company canceled the contract and kept the money. The installer insisted he needed a new roof immediately—effectively asking him to replace a 30‑year roof 15 years early—despite Will offering to pay for panel removal and reinstallation when he does replace the roof. The company refused that compromise, left him paying for a site survey he calls unnecessary, and did not return the deposit after canceling. He feels the company unjustly charged him $500 and plans to tell anyone who asks that they kept his money.
Passed screening
Passed screening
Operating longer than most installers in the market.
Mixed BBB standing. Some unresolved complaints.
Reviews were posted naturally over time.
On two separate solar projects over the past several years, 3rd Fret found AES to be the rare company that made a complicated job feel easy. From choosing the panels and battery banks to the final wiring, everything moved smoothly, and the crew stayed professional and friendly while answering questions along the way. The biggest surprise came at the end: the system was up and running earlier than expected, with Michelle kept informed at each step instead of left guessing.
Debbie had AES install SunPower equipment years earlier and then, eight years on, encountered a manufacturer recall. She and her husband Ted turned to AES to handle the paperwork and repairs, and AES dug in—pushing through the recall process, coordinating with SunPower, and following the case until the fixes were completed. The couple singled out the persistent, competent work of Carmy, Sandro?, and Eric for making the difference. What lingered from their experience was not the original sale but the company’s willingness to stay involved long after installation and see a complicated recall through to a proper resolution.
More than a decade after Georgia first gave this solar installer top marks for a successful installation, the experience had clearly changed by the time she came back with service questions. What had once felt like a company worth praising now seemed driven more by the sales side than by post-install support, and after two separate calls to the service department, she never got a return call. That gap between the original install and the later silence was the detail that stood out most.
Dan had already been left with a mess by another solar outfit, so finding Alternative Energy Solutions felt like getting a project back on track. The standout for him was Lauren Guerra, the service writer who stepped in and helped untangle the problems that had piled up from the earlier company. By the end, he came away grateful for a team that didn’t just install equipment but actually helped clean up someone else’s mistakes.
Ben began the process with Henry, who walked him through the process and the available options in clear detail. He ended up with a professionally installed system: Kevin and his crew handled the trenching and conduit so neatly that the run is virtually invisible in the yard. He now checks the monitoring app as the battery fills up and enjoys watching it charge. The thing that stuck with him most was the discreet, clean installation — especially that hidden trench — paired with straightforward communication from the start.
After almost five years with a residential solar system, Pam found the relationship break down once the company changed hands. She discovered one day that the app let her check her system’s production, and the next morning the monitoring icon had vanished from her phone; when she tried to log in her email address was no longer recognized. Encountering that kind of account instability and what she describes as poor organization, she lost confidence in the provider. She will not use them again — the memorable takeaway is that ownership changes left her without reliable access to production monitoring.
Michael had ARS install a solar panels and system on his home years ago. Over the years he relied on them for follow-up work and discovered they consistently showed up with rapid, efficient service whenever something needed attention. That steady reliability became the defining feature of the relationship, and he ended up recommending ARS to many people — notable because he rarely hands out referrals. For him, the lasting responsiveness is what sets the company apart.
Steven D. leased a solar system for his home almost three years ago and hasn’t regretted the choice. He ran into a few occasions when the company was slow to return a call, but their consistent, respectful treatment made those delays easy to forgive. After this stretch of ownership and service interactions, he gave them five stars—what stood out was the way the team treated him, not flawless responsiveness but reliable customer care that kept him satisfied.
Henry was still waiting on the project to move forward when he wrote the review, and that unfinished state shaped everything else. So far, the company had only produced a report spelling out what was wrong and arranged for a cleaning, but even that cleaning had slipped so far behind schedule that it was nearly two months overdue. Instead of seeing progress on the job itself, he was left staring at delays before the real work had even started.
Long-term satisfaction for Alternative Energy Systems drops to 4.2 ★ compared to early reviews. This is better than 57% 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.