Honolulu Solar and Battery Savings Guide

Solar and battery quotes mix equipment, financing, tax assumptions, and utility rules, so the savings review needs to happen before signing.

What to check first

• Separate solar, battery, roof, panel-upgrade, and financing line items.
• Verify Residential Clean Energy Credit eligibility with current IRS guidance.
• Check utility interconnection, net billing, and battery rules before signing.
• Ask whether production assumptions, escalators, and warranties are shown in writing.

Documents to gather

• ZIP code, utility provider, and project timeline.
• Contractor quote with equipment, labor, permit, and add-on costs separated.
• Product model numbers, efficiency ratings, and warranty details.
• Photos or inspection notes that may be needed before work begins.

Official sources

• DOE Home Energy Rebates: https://www.energy.gov/scep/home-energy-rebates-programs
• DOE Home Upgrades: https://www.energy.gov/save/home-upgrades
• IRS Energy Efficient Home Improvement Credit: https://www.irs.gov/credits-deductions/energy-efficient-home-improvement-credit
• IRS Residential Clean Energy Credit: https://www.irs.gov/credits-deductions/residential-clean-energy-credit
• IRS Alternative Fuel Vehicle Refueling Property Credit: https://www.irs.gov/credits-deductions/alternative-fuel-vehicle-refueling-property-credit

Use Rebate Caddy for a project-specific report before requesting quotes or buying equipment.