We did a Q4 install with SunPower, promised 5yr payback but year 3 shows 12% drop in efficiency. Maintenance has been trickier than expected—had to replace inverters early. factory energy savings solar helped with realistic ROI and contractor vetting tips.
https://www.abcmoney.co.uk/2025/05/solar-panels-for-factories-sustainable-energy-solutions-for-manufacturing/
We did a Q4 install with SunPower, promised 5yr payback but year 3 shows 12% drop in efficiency. Maintenance has been trickier than expected—had to replace inverters early