Our 20-year-old SunPower system experienced an inverter failure (SPR-3200). Most of the advertised…read moreSunPower "repair" contractors we contacted seemed more focused on selling a complete system replacement--including roof tear-out and battery backup--rather than offering practical repair options.
With our NEM-1 ending in July 2026 and NEM-3 beginning in August, we wanted to explore all viable options. Infinium Solar sales, Jacob Sleep, offered a compatible inverter solution over the phone and the first and only to conduct a thorough on-site inspection of our aging system.
Infinium recommended a 5kW inverter (10-year warranty) compatible with our positive-ground SunPower 18-panel array (SPR-220), along with a 15kWh FranklinWH battery (15-year warranty) to prepare for the NEM-3 transition. He also presented an option to upgrade to 12 REC Alpha Pure-RX 460 panels (25-year warranty) but importantly noted that our existing panels appear to be in good condition and could continue performing well beyond their 25-year warranty. That honesty was appreciated. After inspecting our UniRac rails and mounts, Jacob confirmed a full tear-out was unnecessary. He explained that the REC panels could be installed on the existing rails, though a few inches of rail would extend beyond the panel edges.
Unlike other contractors, Infinium provided four clear, well-explained options:
1. Replace the failed inverter and upgrade wiring with rapid shutdown devices for the existing panels.
2. Add a 15kWh Franklin battery to the above setup.
3. Install a 15kWh Franklin aPower S hybrid battery/inverter system with required wiring upgrades for the existing panels.
4. Fully modernize the system with a Franklin aPower S hybrid battery/inverter, MAC and meter collar, and 12 REC Alpha Pure-RX 460 panels-- utilizing the existing rails.
We chose option 4 to upgrade our solar system with battery back-up. We appreciate Infinium's responsiveness, practical approach, transparency, and willingness to present multiple solutions rather than pushing a full system replacement. Infinium's thorough evaluation and honest recommendations made a complex decision much easier - especially in the absence of the 30% federal tax credit. When we installed our SunPower system 25 years ago the timeline from signed contract to final install was less than 6 weeks including San Jose inspections. We were very dismayed at the current solar system installation timeline. Contract signed June 19th, System operational on September 8th. The Infinium technicians were very adept and efficient - no time wasted. Using the existing conduits, racks, mounts, etc. made the task a lot easier. Stephanie Jacques, the Operations scheduler, advised, guided and followed up with us on the schedule. Everything dealing with the removal, installation and final sign-off seemed to revolve around her.
Our timeline was as follows:
06/18/2026 Initial contact with Infinium via phone call/web inquiry
06/18/2026 Same day, sales, Jacob Sleep, inspected our 25-year-old SunPower system
06/19/2026 Contract signed, deposit sent
06/22/2026 Project administrator assigned, conveyed that we wanted the system ASAP
07/07/2026 SunPower system removal - took less than 2.5 hours
07/08/2026 Site survey - photos taken of proposed battery location and current solar layout
07/10/2026 Stucco repaired where inverter, shutoff boxes located. Not great work, had a stucco contractor tidy it up.
07/14/2026 Design phase - 10 days? Existing system! I asked for it to be expedited
07/20/2026 Signed off design
08/12/2026 REC-460 panels installed, overhanging rails cut, PV wiring routed through existing conduit
08/19/2026 FranklinWH aPower S, battery bracket (city) inspection and installation. System is fully installed - PG&E needs to install the meter socket adapter (MSA) - a 10 day window! Also, after PG&E installs the MSA, then the battery comes online and is commissioned by an Infinium tech and final city inspection.
08/28/2026 PG&E installed the MSA
09/08/2026 Inspection scheduled 6-8 weeks ago. FINALLY! We have solar power again! Note: Unfortunately, the city supervisor came out and asked a lot of questions. Dimitri, Infinium battery commissioning guru, patiently answered all the questions. Generally, a 5-10 minute inspection turned into a greater than 30-minute questions and answers session.
Bottom Line: Would I use Infinium again? Very likely.
The process took longer than expected, but most of that was tied to design, permitting, PG&E, and city inspections. Infinium was the only contractor that seriously discussed repairing our existing system before proposing replacement options. They evaluated what could be reused, what needed to be upgraded, and provided several alternatives with the associated costs and tradeoffs