Pricing & Costs

Why does Independent Energy Hawaii publish its solar prices?

Published Updated October 30, 2026 5 min read

See our published prices before a sales conversation, then use them to compare equipment, installation scope and ongoing care in any solar quote.

You should not have to sit through a sales pitch to find out what solar costs.

Most Oahu homeowners start the same way. They search “how much does solar cost in Hawaii” and get one of two things: a price range so wide it is useless, or a form asking for their phone number. Neither one answers the question.

A published price gives you a starting point before a sales conversation. That is why Independent Energy Hawaii lists real prices by system size, island and add-on on our Hawaii solar cost page.

Why some quotes arrive after a consultation

Solar pricing is not too complicated to publish. Base equipment and installation costs provide a starting point. Pricing practices vary. Without a published baseline, homeowners may find it harder to compare scope and equipment.

When you cannot see a baseline, you cannot tell whether a quote is fair. Two quotes can look like they’re thousands of dollars apart, and you have no way of knowing whether one omits permits, uses a smaller battery, or skips service after the install. You end up comparing monthly payments instead of value.

A clear baseline makes the comparison easier before you request a site-specific proposal.

What our published prices include

Here is what a home solar system costs on Oahu and Maui, paid in cash, before incentives:

System sizeTypical pricePrice per wattTypical monthly bill it fits
5 kW$20,000 to $21,000$3.95 to $4.15About $200
8 kW$29,000 to $30,000$3.65 to $3.75About $300
10 kW$34,500 to $35,500$3.45 to $3.55About $350 to $400
12 kW$38,000 to $40,000$3.15 to $3.35About $450 to $500
15 kW$44,000 to $46,000$2.95 to $3.05About $500 to $600

Adding a Tesla Powerwall 3 battery adds about $13,000. Big Island pricing is about $5,000 higher than Oahu.

Those prices include equipment, permits, installation, utility paperwork and monitoring setup. Every system also comes with up to 30 years of coverage through Solar Insure, and every proposal includes the first year of SolarServe Standard, our ongoing check-up, panel washing and monitoring plan. Most installers do not include ongoing service. We do.

What can change the price, and why we publish that too

A published base price only helps if you also know what can move it. Every home is different, so we list the most common add-ons up front:

  • Roof type. Flat roofs (rolled comp or TPO) add $0.20 per watt. Metal or tile roofs add $0.30 per watt.

  • Electrical upgrades. Older homes may need a new main panel. A 200A overhead upgrade is $6,500.

  • Panel choice. Base prices use REC Alpha 460W panels. Maxeon and Tesla panels cost more. JA Solar and Q CELLS panels cost less.

  • Townhomes and HOAs. Extra permitting can add several thousand dollars.

Every add-on is priced upfront and confirmed during your site survey. You should never see a surprise line item at signing.

How to use published prices to judge any quote

Even if you never buy from us, published prices give you a yardstick. Here is how to use it:

  • Find the price per watt. Divide the total price by the system size in watts. This lets you compare a 7 kW quote to a 9 kW quote fairly.

  • Match the equipment. A quote with a smaller battery or lower-tier panels will look cheaper. That does not mean it is a better deal.

  • Check what is included. Permits, roof adders, electrical work and utility paperwork should all be listed.

  • Look at total cost, not the monthly payment. A 25-year loan can make an expensive system look affordable.

  • Ask who services it in year 10. The cheapest quote is not the cheapest system if no one is around to fix it.

Why transparency matters more in Hawaii

Hawaii has thousands of solar systems whose original installer has closed or left the islands. Those homeowners did not just lose a phone number. They lost their workmanship warranty and the people who knew their system.

Published prices are one half of being accountable. The other half is still being here after the install. That is why SolarServe exists, and why it services systems from any installer, not just ours.

Key takeaways

  • Published prices help you compare equipment, scope and total cost.

  • On Oahu and Maui, home solar runs about $20,000 for 5 kW up to about $46,000 for 15 kW, cash, before incentives.

  • Price per watt is the easiest way to compare quotes of different sizes.

  • Every add-on should be priced upfront and confirmed at the site survey.

  • The cheapest quote is not the cheapest system if no one services it later.

Independent Energy Hawaii publishes its prices because you deserve to know what solar costs before anyone asks for your phone number.

See the full pricing guide.

The first year of SolarServe Standard is included with new IEH installs. Ongoing membership after that year is separate.

Solar Insure coverage is subject to equipment eligibility and policy terms.

Discounts may change and are confirmed at the site survey.

Frequently Asked Questions

How much does solar cost in Hawaii?

On Oahu and Maui, a home solar system costs about $20,000 for 5 kW up to about $46,000 for 15 kW, cash, before incentives. A Tesla Powerwall 3 battery adds about $13,000.

Why do bigger solar systems cost less per watt?

Design, permitting and setup costs stay about the same no matter the system size. Spreading them over more panels lowers the price per watt.

Is the published price the final price?

It is the starting point. Every add-on, like roof type or a panel upgrade, is priced upfront and confirmed during your site survey.

Do you offer discounts?

Yes. Published discounts range from $500 to $2,500 for military and first responders, Lahaina fire families, Maui Powerwall 3 customers, and online-permit homes, plus per-watt savings on JA Solar and Q CELLS panels. Discounts can be combined.

Is there still a federal tax credit for solar?

Not for homeowners buying in 2026. A prepaid lease through Participate Energy can still cut the upfront cost by about 30 percent.

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