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This company has left multiple customers with broken systems and unfulfilled promises. One homeowner paid a deposit for Tesla batteries, waited two years, received defective units from a defunct manufacturer instead, endured six months of troubleshooting, then watched those batteries fail entirely. When Synergy promised replacements, the entire team went silent. Another customer discovered their $51,800 system was severely undersized only after receiving a $1,000 utility bill at year-end, and the owner blamed them for the error. We found 46 mentions of solid workmanship, and installation crews consistently earn praise for being on time and respectful. But we also found a pattern of accountability evaporating when things go wrong. Rebate paperwork sits unfiled for over a year despite repeated calls. Systems fail and calls go unreturned. When a battery supplier goes bankrupt, customers are left in the dark. (One reviewer is now hiring a lawyer just to get the Tesla batteries they were promised months ago.)
If you're looking for a tidy one-day install with polite crews, you'll probably get that. But if something breaks or underperforms after the contract is signed, you may find yourself chasing the owner for months with no resolution.
Gregory had two power walls and additional solar panels installed 13 months ago. The equipment performs well and the installation technicians left a very positive impression. He later discovered the paperwork for a PG&E rebate was never submitted; despite many emails and phone calls, he could not get Ed Cotas to complete that portion of the contract. What lingered was the contrast: a functioning system and good on-site service, but an unresolved rebate because the required paperwork never made it to PG&E.
Joaquin M. invested $51,800 in a solar system meant to cover his household electricity, only to discover a year later that the array was severely undersized and he ended up paying PG&E more than $1,000 at the annual true-up. He confronted owner Ed Cotas about the shortfall, and Cotas shifted the blame onto him. After SunPower filed for bankruptcy, Snergy768 stopped offering any assistance; Joaquin has been trying to get help since last November with no response. He walked away frustrated by what he describes as awful customer service and a costly true-up with no company support.
Three years before the pandemic Marjory paid a down payment for Tesla batteries for her home and waited for the work to be completed. Two years later, after a series of delays and excuses, Ed Costas installed two batteries manufactured by a now-defunct firm called Electirc power. For more than six months the system never functioned: installers wrestled with getting the batteries to link to the app that controlled them while the original manufacturer had already folded. She stuck with the company, hoping for a quick fix, but in December 2024 the batteries stopped working entirely. Technicians returned and promised to replace both units with new Tesla batteries, yet for the past two and a half months she has been chasing that promised replacement while everyone at Synergy 768 has gone silent. Marjory discovered that the team was quick to accept money but unwilling to stand behind the contract or the work when things went wrong; Ed’s friendly manner and big promises felt like a disguise once follow-through disappeared. Now she is preparing to hire an attorney and has begun warning others not to use Synergy 768 — the most lasting detail is the unfulfilled promise of Tesla replacements,
Passed screening
Passed screening
Operating longer than most installers in the market.
Excellent BBB standing. Strong complaint resolution.
Reviews were posted naturally over time.
A valid contractor license is on record.
Joaquin M. invested $51,800 in a solar system meant to cover his household electricity, only to discover a year later that the array was severely undersized and he ended up paying PG&E more than $1,000 at the annual true-up. He confronted owner Ed Cotas about the shortfall, and Cotas shifted the blame onto him. After SunPower filed for bankruptcy, Snergy768 stopped offering any assistance; Joaquin has been trying to get help since last November with no response. He walked away frustrated by what he describes as awful customer service and a costly true-up with no company support.
Three years before the pandemic Marjory paid a down payment for Tesla batteries for her home and waited for the work to be completed. Two years later, after a series of delays and excuses, Ed Costas installed two batteries manufactured by a now-defunct firm called Electirc power. For more than six months the system never functioned: installers wrestled with getting the batteries to link to the app that controlled them while the original manufacturer had already folded. She stuck with the company, hoping for a quick fix, but in December 2024 the batteries stopped working entirely. Technicians returned and promised to replace both units with new Tesla batteries, yet for the past two and a half months she has been chasing that promised replacement while everyone at Synergy 768 has gone silent. Marjory discovered that the team was quick to accept money but unwilling to stand behind the contract or the work when things went wrong; Ed’s friendly manner and big promises felt like a disguise once follow-through disappeared. Now she is preparing to hire an attorney and has begun warning others not to use Synergy 768 — the most lasting detail is the unfulfilled promise of Tesla replacements,
For Dante, what made Synergy 768 memorable wasn’t just a smooth panel job — it was that owner Ed Cotas personally installed their Tesla wall charger at no cost. Dante met Ed for the initial consultation and quickly discovered a level of professionalism, thoroughness, and technical know‑how that put him at ease; Ed walked through the benefits and the installation process in clear, practical terms so the decision felt straightforward. After PG&E cleared the permit, the crew arrived and wrapped the solar install in a single day, working cleanly and efficiently and demonstrating real skill on the roof. A year and a half later he’s still pleased with system performance, and credits Ed’s leadership for the team’s customer-first approach. The detail that sticks most is simple and tangible: the owner not only handled the sale and coordination, he actually installed their Tesla charger free of charge — a gesture that turned a very good installation into a personally attentive experience.