Maui County customers, Hawaii · Loan
Maui Solar Roofs Initiative (MSRI) Interest-Free Program for Solar Water Heating Systems
Run by Hawaiian Electric, in partnership with the County of Maui
Maui County homeowners and renters with a Hawaiian Electric account can finance a solar water heater that replaces an electric or solar water heater interest-free, after a 35% down payment, subject to available funds.
Amounts
How much you get
Interest-free financing of the solar water heater cost left after any rebate and a 35% down payment to the contractor. Payments are set from the contractor's estimate of the household's energy savings. Typical repayment is about six years; the maximum term is 96 months. The brochure caps the down payment at $2,250; the web page doesn't mention that cap. Subject to availability of funds.
Eligibility
Do I qualify?
You need to meet all 4 of these.
Maui County property owner or renter with a Hawaiian Electric account and a good payment history for the past 12 months.
Property owners or renters may apply.
Home must be occupied year-round as a primary residence.
The solar water heater must replace an existing electric water heater or solar water heating system.
Equipment
What equipment counts
Applying
How to apply
Follow these steps.
- Get a solar water heater quote from a qualified contractor.
Hawaii Energy (1-877-231-8222) provides rebates, inspections and the list of qualified solar contractors.
- Fill in the MSRI application form.
Include your latest IRS 1040 and Real Property Tax Assessment Notice.
- Return it to Hawaiian Electric by mail, fax or email.
P.O. Box 398, Kahului, HI 96733-6898; fax 808-872-3235; msri@hawaiianelectric.com.
- Pay the 35% down payment to the contractor.
- Repay the rest interest-free in monthly payments.
Latest IRS 1040
Real Property Tax Assessment Notice
Forms and instructions, including for applying by mailHawaiian Electric: Maui Solar Roofs Initiative brochure (PDF) · Hawaiian Electric: Maui Solar Roofs Initiative application form (PDF, 08/16)
Questions about applyingmsri@hawaiianelectric.com
Stacking
Use it with
Your address
Next steps
Check that it covers your address. Then, if you want, ask for a contractor quote.
Is it available at your address?
Before anything else
Your quote request is in If a contractor we work with serves your ZIP, they can contact you. We take one request per person; contact us to change it.
Get an email if this program changes
We'll write if its amount, status or deadline changes. Nothing else.
FAQ
Questions
How much does Maui Solar Roofs Initiative (MSRI) Interest-Free Program for Solar Water Heating Systems pay?
Interest-free financing of the solar water heater cost left after any rebate and a 35% down payment to the contractor. Payments are set from the contractor's estimate of the household's energy savings. Typical repayment is about six years; the maximum term is 96 months. The brochure caps the down payment at $2,250; the web page doesn't mention that cap. Subject to availability of funds.
Do I need to be a Maui County customer?
Yes. It’s only for homes in Maui County customers, Hawaii. See Do I qualify for the details.
Do renters qualify?
Property owners or renters may apply. Home must be occupied year-round as a primary residence.
Is it still available?
Yes. It was open when we last checked, on October 27, 2026.
Is there a down payment?
Yes. A down payment of 35% of the system cost after any rebate is required; the brochure caps it at $2,250.00.
How long do I have to repay?
Typically about six years. The maximum term is 96 months.
Plain words
Words used on this page
References
Sources
This page is built from these official pages, run by the program itself.
- Hawaiian Electric: Maui Solar Water Heating Financing
- Hawaiian Electric: Maui Solar Roofs Initiative brochure (PDF)
- Hawaiian Electric: Maui Solar Roofs Initiative application form (PDF, 08/16)
When one of these pages changes, we re-check this page against it.
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