Products & Services

Maui Solar Water Heating Financing

Maui Solar Roofs Initiative (MSRI) Interest-Free Program for Solar Water Heating Systems

Although rebates and inspections for the solar water heating systems are now provided by Hawaii Energy, Hawaiian Electric in partnership with the County of Maui offers this program to qualifying Maui County residents. For more information, you may reach us at

Frequently Asked Questions

Who is eligible?

Maui County property owners or renters with a Hawaii Electric account and a good payment history in the past 12 months.  The solar water heating system must replace an existing electric water heater or solar water heating system.  Home must be occupied year-round as a primary domestic residence.

How much will I save?

A typical family of four can save about $50 a month. Actual savings depend on your household's hot water usage. Generally, larger households save more and have a shorter payback period.

What will be my monthly payment?

The monthly payment amount is based on the solar contractor's calculations of the estimated energy savings - about $50 a month for a typical family of four.

Is there any upfront cost or down payment?

Yes.  A down payment of 35% of the system cost (after any applicable rebate) is required. Check with your tax professional - most people qualify for federal and state tax credits.

Can I get a rebate and a list of solar contractors from Hawaiian Electric?

Please contact Hawaii Energy at toll-free number 1-877-231-8222 or visit their website for information regarding rebates, inspections and a list of qualified solar contractors.

MSRI Interest-Free Solar Water Heating Example

Estimated system cost   $8,000.00
Hawaii Energy Rebate, effective 11/21/22 - $1,250.00
Estimated system cost less rebate   $6,750.00
35% down payment to contractor ($6,750 x 35%) - $2,362.50
Estimated repayment amount from customer1   $4,387.50

1Typical repayment term is approximately six years. SUBJECT TO AVAILABILITY OF FUNDS.