Solar Optimum
Good (B) — Insolar Honesty Grade
Solar Optimum is one of California's longest-established residential solar installers, operating with a direct-sales W-2 employment structure. Strong customer service metrics and clean regulatory record. Multiple-year #1 Panasonic Premium Installer in the U.S. by volume — meaning above-average panel quality on average installation.
Where this grade comes from
Public-record events
- No active state AG enforcement actions (as of 2026)
- CA CSLB license: clean record, no disciplinary actions
- BBB A+ rating
- Multiple-year recognized as top Panasonic / LG solar installer
/ Best for
California customers seeking an established direct-sales installer with strong panel quality (Panasonic / LG premium products) and a clean regulatory record.
/ Watch out for
Geographic coverage is concentrated in California. Pricing is mid-market; not always the cheapest option, but trade-off is product quality and service consistency.
Have direct evidence of an issue with Solar Optimum?
Report a new regulatory filing, court ruling, complaint pattern, or sales-practice issue. Verified submissions feed the next quarterly Honesty Index refresh. We only accept reports backed by documentation (filing numbers, screenshots, contracts).