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Energy Technology Services reviews
• updated MAR 31, 2026Loading map...
The Verdict
Energy Technology Services delivers reliable generator and solar work, but one project management breakdown casts a shadow. We analyzed dozens of reviews and found two clear strengths: their whole-house generator installations run flawlessly during actual outages (one homeowner's lights stayed on while the entire neighborhood went dark after a transformer blew), and their solar panel work is technically solid (they even wired a DIY homeowner's self-installed panels after a dozen other electricians refused the job). The workmanship scores 4.7 out of 5, with 13 reviewers praising quality and only 1 raising concerns. But that one negative review tells a troubling story: a solar pool heater reinstall spiraled into four missed appointments, unannounced arrivals, and a project manager who asked "What do you want from me?" when the customer requested basic communication. The owner listened but offered no resolution. That's the kind of coordination failure that turns a two-day job into a weeks-long ordeal. We saw no similar patterns in other reviews, so this may be an outlier rather than a habit, but it's worth knowing if you're planning a project that requires tight scheduling or multiple site visits.
If you need a whole-house generator or technical solar work and you can tolerate some scheduling uncertainty, their field crews deliver. But if your project involves coordination with other contractors or you're on a strict timeline, confirm upfront how they'll handle appointment changes and who your point of contact will be when things shift.
3 Stories That Stood Out
Gary contracted Energy Technology Services to install a 22 kW whole-house generator at his home. He discovered the job was more complex than expected — not just major electrical work but coordination with the natural gas provider, a gas contractor, a surveyor, and multiple city permits and inspectors — and ETS handled all of that logistics. There were some delays, but those came from other contractors’ schedules; when Tiger Arnold committed to a time, he showed up on time. ETS also installed outdoor and security lighting that worked perfectly from day one. The moment that sealed it for him came during the generator’s first real test: a power-pole transformer exploded and the entire neighborhood went dark. Within five seconds the generator ETS had installed kicked in automatically and restored everything — air conditioning, lights, refrigerator and freezer, television, internet — as if the utility had never failed. When utility power returned about 90 minutes later, the generator shut off exactly as it should. What Gary remembers most is that five-second automatic start and a fully powered house while the rest of the block sat in the dark.
A H. hired this company through Nolands Roofing to remove and reinstall a solar pool heater while Nolands repaired the roof. They discovered a pattern of missed windows and poor communication: the crew missed the initial Friday removal without notice and then turned up unannounced early the following Monday, starting work without ringing the bell or calling. The reinstall followed the same chaotic rhythm — the crew told Nolands the heater was already back in place when it wasn’t, scheduled a 12–3 p.m. appointment only to cancel after the window had passed, then showed up the next day and postponed again because it might rain. A tech insisted on additional parts outside the insurance scope; A H. called Ray and approved the parts, and Ray promised to try to get the tech out the next week. Instead, the tech arrived unannounced on Monday without the parts and said Ray hadn’t informed him. When A H. pushed Ray for a resolution, Ray agreed to send the tech another day but reacted tersely when A H. told him to skip it. A H. spoke with owner Dave, who only took down the account and said he would talk to Ray, leaving the core problems unresolved. The detail that lingers: a string of no-shos
Josh was halfway through a DIY solar-panel install on his ranch-style home, planning to hire an electrician for the final wiring, when roughly a dozen electricians turned him away. He found Tiger, who arrived within a day to give a quote and came back two days later to complete the wiring. Tiger worked quickly, demonstrated clear expertise, and went beyond the hookup—walking through the setup, offering feedback and practical recommendations on the portions Josh had handled himself. The memorable part for him was how Tiger showed up on short notice and didn’t just connect the system but also coached him through improvements to his own work.
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 75
No Red Flags
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
Background Check
Serving customers for 6 years
BBB Rating
Not BBB rated.
Review Patterns
What You Can Expect
Josh was halfway through a DIY solar-panel install on his ranch-style home, planning to hire an electrician for the final wiring, when roughly a dozen electricians turned him away. He found Tiger, who arrived within a day to give a quote and came back two days later to complete the wiring. Tiger worked quickly, demonstrated clear expertise, and went beyond the hookup—walking through the setup, offering feedback and practical recommendations on the portions Josh had handled himself. The memorable part for him was how Tiger showed up on short notice and didn’t just connect the system but also coached him through improvements to his own work.
Jan Rahill booked an annual inspection of the pool’s solar heating system and received a visit from Nate. They found Nate professional, knowledgeable and exceptionally courteous; he walked them through each step and explained the work so they could understand exactly what he was doing. The clear, patient explanation left them reassured about the system’s condition. Jan singled out Nate by name and praised ETS overall, and gave the visit a five-star rating.
Bryan consulted with Energy Technology Services, Inc. to choose a whole-house backup and, after they analyzed his energy use, they recommended a 22 kW Generac. He let them handle procurement, coordinate the installation and testing, and run all of the external electrical wiring. They also built a custom screen to keep the unit out of sight. Overall he had a very positive experience and ended up with a fully wired, tested 22 kW Generac neatly concealed behind that screen — the detail that stuck with him.
Taty hired Energy Technology Services to put solar panels on her roof, and Tiger came to her home to handle the installation. She found him deeply knowledgeable, answering every question with clear, thorough explanations and walking her through how the system would perform. His professionalism showed from start to finish — he worked efficiently and finished the installation in a timely manner. She walked away with a properly installed system and confidence in operating it; what stood out most was Tiger’s patient, detailed explanations that made the technical parts easy to understand.
Jay Patel hired the company for a solar installation and discovered workmanship that was careful and professional. He watched the crew finish the job on schedule and felt reassured by how trustworthy the installers were. His lasting impression was simple and specific: solid craft completed promptly by people he could trust on his property.
Luis Doria turned to the company several times for help with his solar panels. He found each visit efficient, responsive, and thoroughly professional — the crews arrived prepared, completed the work cleanly, and communicated clearly about what they did. The most distinctive detail was the repeat business: he kept calling them back because their workmanship and responsiveness proved reliable rather than a one-off good job. He now treats them as his go-to team whenever his system needs attention.
Chris had ETS remove and then reinstall his solar panels while he replaced his roof. He found the crew friendly and the work well done, with the panels taken off and put back without problems. The positive combination of competent workmanship and a personable team convinced him he’ll call ETS again for future needs.
Ana Rocha arranged for ETS to replace an inverter at her home. She walked away impressed: the technician handled the swap efficiently and professionally, was friendly throughout, and went the extra mile by connecting the new inverter to her Wi‑Fi so she could monitor it right away.
Anna Williams had a residential solar array that wasn’t working properly after another installer's work. She watched a technician arrive promptly and on time, trace the remaining faults and repair the previous installer’s mistakes so the system started producing again. He also handled the internet hookup and got the array registered in the monitoring portal, so she can now see performance data remotely. The standout detail was that the visit didn’t stop at repairs—the tech finished the setup end-to-end, leaving a functioning system that’s actively monitored.
Long-term Satisfaction
Recent customers rate Energy Technology Services 4.8 ★
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.