Hiring a solar installer in Honolulu: the DCCA license, the permit, and what 16,000 solar permits show

Honolulu solar in numbers

Filing peaks in December (index 123) and is lowest in January (76). Prices by firm are on the Honolulu solar cost page; the trade-off of leasing is in solar lease vs buy.

Which license an Oʻahu solar installer needs

Hawaii licenses every contractor through DCCA's Professional and Vocational Licensing Division. DCCA says a license is needed "for any project exceeding $1,500 in labor and material" and "for any project that requires a building, electrical or plumbing permit" (DCCA PVL, read 22 October 2026). For PV, look for a C specialty covering the work and a C-13 electrical class for the wiring: DPP says contractors on a project must hold the classifications the work needs, giving "electrical C-13" as its example (HNL Build FAQ, read 22 October 2026).

The five-minute check:

1. Get the CT number from the proposal (it looks like CT-12345-0) and search it on the PVL public license search. Read status, classes and expiry.
2. Search the business name and its responsible managing employee on RICO's Complaints History Search.

An unlicensed contractor is generally barred from suing you for payment (HRS 444-22). More in the Honolulu contractor license lookup.

The permit rule for Oʻahu solar

Rooftop PV is permitted by the Department of Planning and Permitting in HNL Build. DPP's solar page says "Solar Quick Permits are processing, even if the property is within a Special Management Area", and when the application is filed the contractor receives an automated email asking for its consent (DPP, read 23 October 2026). So the installer should be the one on the application. To check, log out of HNL Build and search your address or TMK at the top of the home page; the permit should name your installer. Rules in other cities: do I need a permit for solar panels.

Red flags in the Oʻahu record

• A closed share under 64.3%. That is the 10th-percentile line among the 44 installers with 10 or more permits; 8 closed under 70%. Volume does not protect you here: the busiest firm's closed share was 68.6%, against 94.8% for the second.
• No C-13 on the license when the firm says it does its own wiring.
• Complaints on RICO, under the business or its responsible managing employee.
• A firm that went quiet. 10 solar firms with 5 or more permits filed none in the file's last 12 months. A long panel warranty depends on the firm still being there.
• A price far outside $22,000 to $39,949 with no battery or system-size reason in the proposal.

The busiest Oʻahu solar installers in the last 12 months

Ranked by solar permits in the last 12 months of our file, July 2024 to June 2025. Volume, not quality.

The busiest firm alone holds 29.3% of Oʻahu solar permits. The compare list shows every installer's closed share and days to close next to its volume.

See every Oʻahu solar installer by closed share and days to close →

What the Honolulu record does not tell you

Our Honolulu permit file stops at 30 June 2025, so a firm's last 15 months are missing; check HNL Build for recent permits. We have not linked DCCA license records, so our Honolulu pages show no license status; run PVL yourself. A closed permit means DPP closed the application, not that the system produces what the proposal promised, and utility interconnection is a separate step we do not track. The national checklist is in hiring a solar installer, and state rules in how to check a contractor's license in Hawaii.