Solar hot water and photovoltaic installations on your home or business can result in large reductions to your electric bill. There are also federal & state tax credits that offer immense returns. In addition to having free hot water and electricity after the system has paid for itself in reduced utility bills, you & your family or business will be cushioned from future fuel shortages & price increases. You will also be doing your part to reduce our country's dependence on foreign oil.

Traditional water heaters can account for up to 40% of the electric bill. You can eliminate up to 85% of the energy used to heat water with the installation of a solar hot water system. In addition to the significant energy savings, Hawaii Energy also offers a one-time $750 rebate to qualifying customers who install solar water heaters using participating contractors as part of the Energy $olutions program. And as of January 1st, 2010 solar water heating is a requirement on all new single family construction.

Solar hot water systems tax incentives:
   - The current federal tax bill allows a 26% Federal Energy       Tax Credit with no cap. Read more...
   - Hawaii allows a 35% state tax credit with a cap of $2,250. Read more...

An 80 gallon Solar Water Heater system starts at around $5,900+ tax (minus the rebate of $1,000).

A 120 gallon Solar Water Heater system starts at around $7,400 + tax (minus the rebate of $1,000).

See our Tax Benefits page for links to tax forms.

To download a copy of a price sheet for solar water heating, click here.

Frequently Asked Questions

Solar Water Heating
80-gal Solar Hot Water Heating System

   
   System Cost
$ 6,145.85
   Hawaii Energy Rebate *
- 1,000.00
   26% Federal Tax Credit
- 1,337.92
   35% Hawaii State Tax Credit
- 1,801.05
   Net Cost
$ 2,006.88
* As of 1/1/21 the rebate was decreased to $1,000 through June 30th.  
   Avg Elec. Bill Savings
$60.00/Month
   Yearly Savings
$720.00
   Est. Pay Back Period
>2-1/2 Yrs.  

Solar Water Heating
120-gal Solar Hot Water Heating System

   
   System Cost
$ 7,708.36
  Hawaii Energy Rebate *
- 1,000.00
  26% Federal Tax Credit
- 1,744.17
   35% Hawaii State Tax Credit
- 2,347.93
   Net Cost
$ 2,616.26
* As of 1/1/21 the rebate was decreased to $1,000 through June 30th.  
   Avg Elec. Bill Savings
$75.00/Month
   Yearly Savings
$900.00
   Est. Pay Back Period
> 2-1/2 Yrs.  







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