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Hawaiʻi Island Solar Planning Tool

Solar Potential Estimator

Get a preliminary solar layout from your energy use and roof dimensions. The tool estimates panel count, system size and annual production, then gives you a direct path to a professional satellite, aerial or drone roof review.

1. Tell us about the property

Adjust the inputs below. Results update automatically.

Enter a full Hawaiʻi Island street address for Google’s imagery-derived roof analysis.
Optional — the manual estimator below still works without a satellite scan.
Editable. Default reflects recent Hawaiʻi Island residential pricing.
70%
Planning assumptions: 450 W modules, about 22 sq. ft. per module, and a Hawaiʻi planning production factor before roof orientation and shading adjustments. Final engineering must verify roof geometry, structural conditions, code setbacks, obstructions, utility rules and equipment selection.

2. Preliminary solar potential

A planning estimate — not a construction design.

Calculating
Recommended systemDC nameplate estimate
Estimated panels450 W modules
Annual productionApprox. kWh/year
Estimated usage offsetEnergy basis, before tariff effects
Roof area Usable area

Enter your information to generate a preliminary result.

Battery planning guidance will appear here.

How this digital estimate works

1. Energy demandYour electric bill and editable utility rate approximate monthly electricity use.
2. Roof capacityRoof dimensions, usable-area percentage, orientation and shading constrain the preliminary panel layout.
3. Google roof analysis + professional verificationFor supported Hawaiʻi Island addresses, Google Solar building insights can add imagery-derived roof geometry and production modeling. Island PV Solutions then verifies setbacks, equipment, structure and field conditions.

Request a professional satellite / aerial roof review

Send your preliminary estimate to Island PV Solutions Hawaii. We’ll review the property conditions and discuss the next step with you.

This calculator is for preliminary planning only. No financing application or credit check is performed.