Oʻahu and Hawaiʻi Island and Maui County customers, Hawaii · Instant discount
Hawaii Energy Solar Water Heater Tune-Up Instant Rebate
Run by Hawaii Energy
Up to $325 off a tune-up of a residential solar water heating system at least 5 years old, taken off the invoice by a participating Hawaii Energy contractor.
Amounts
How much you get
Up to $325 off the cost of the tune-up, deducted from the contractor's invoice. The amount varies by county; ask the contractor what applies at your address.
Eligibility
Do I qualify?
You need to meet all 3 of these.
Residential solar water heating systems on Hawaiʻi Island, Lānaʻi, Maui, Molokaʻi and Oʻahu (Hawaiian Electric service areas).
The solar water heating system must be at least 5 years old.
The work must be done by a participating Hawaii Energy Clean Energy Ally contractor.
What to doPick a contractor from Hawaii Energy's Clean Energy Ally directory (hawaiienergy.com/clean-energy-allies) before you book the work. Hawaii Energy - Solar Water Heater Tune-Up Get a quote from a contractor
Equipment
What equipment counts
The program sets these minimums for solar and batteries.
Residential solar water heating system at least 5 years old. It doesn't need to have been rebated by Hawaii Energy.
Applying
How to apply
Your contractor applies for you.
- Find and contact a participating Clean Energy Ally contractor.
Ask which rebate amount applies in your county.
- Schedule the tune-up.
- Pay the invoice with the rebate already deducted.
The contractor submits the rebate application for you.
Forms and instructionsHawaii Energy - Water Heating Rebates · Hawaii Energy - Residential Rebates
Questions about applying877-231-8222 or hawaiienergy@honeywell.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 Hawaii Energy Solar Water Heater Tune-Up Instant Rebate pay?
Up to $325.
Do I need to be a Oʻahu, Hawaiʻi Island or Maui County customer?
Yes. It’s only for homes in Oʻahu and Hawaiʻi Island and Maui County customers, Hawaii. See Do I qualify for the details.
Do I have to use a contractor?
Yes. The work must be done by a participating Hawaii Energy Clean Energy Ally contractor.
Is it still available?
Yes. It was open when we last checked, on October 27, 2026.
Does my system need to have gotten a Hawaii Energy rebate before?
No. Any residential solar water heating system at least 5 years old qualifies, whether or not Hawaii Energy rebated it.
What does the tune-up cover?
The services on Hawaii Energy's tune-up checklist, which vary by system type. Anything beyond the checklist is extra work to discuss with your contractor.
How often should I get a tune-up?
Every 5 years, Hawaii Energy recommends, with a qualified technician who can spot needed repairs or part replacements.
Plain words
Words used on this page
References
Sources
This page is built from these official pages, run by the program itself.
- Hawaii Energy - Solar Water Heater Tune-Up
- Hawaii Energy - Water Heating Rebates
- Hawaii Energy - Residential Rebates
When one of these pages changes, we re-check this page against it.
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