✓ Verified Google reviews·✓ Reviewed regularly·✓ Updated June 6, 2026
Written by Mark Reid,
Home Services Editor ·Verified June 6, 2026
Honolulu sits near the top of any list when it comes to solar potential in the US, and for good reason. The island gets around 270 sunny days a year, electricity rates from Hawaiian Electric consistently rank among the highest in the country, and most of the single-family homes across neighborhoods like Kaimuki, Manoa, and Hawaii Kai have roof pitches and orientations that work well for photovoltaic panels. That combination makes the financial case for going solar here genuinely strong, not just aspirational. You'll also find that installers on Oahu are well-versed in Hawaii-specific grid rules, net energy metering policies, and the state's battery storage incentives, so the local knowledge of a Honolulu-based contractor is worth more than it might be on the mainland.
The businesses on this page were drawn from third-party public business listings and ranked by review rating and review count, with a small lift given to those that show a working website and a listed phone number. Before any business appears here, we check its homepage to confirm that solar installation is what it primarily offers, which keeps general handymen or unrelated contractors from showing up in results. Listings flagged as permanently closed are removed automatically. Where you see a Trust Verified badge on a business, that means it has additionally passed our full verification process covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can find the full list of what that covers on our How We Verify page. For any business on this page that doesn't carry that badge, those checks haven't been done by us, and you should carry them out yourself before booking.
Before you commit to any installer, ask each one for a written proposal that breaks out equipment costs, labor, permit fees, and any interconnection charges separately. Hawaii has its own rules around utility interconnection and you'll want confirmation that the installer handles the full application process with Hawaiian Electric. Get at least two or three quotes, because system pricing varies more than you'd expect even for similar roof sizes. Ask specifically which solar panels and inverters they plan to use, what the production estimate is in kilowatt-hours per year, and what warranty covers both the equipment and the workmanship. Check that the company holds a valid Hawaii contractor's license and confirm whether any financing they offer is in-house or through a third party, since the terms can differ significantly.
How We Select & Rate The Best Solar Installers in Honolulu, HI
Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift applied to businesses that have a working website and a listed phone number. We check each business's homepage to confirm that solar installation is what it primarily offers, which keeps unrelated trades off the page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have additionally passed our full verification covering qualifications, insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. All other businesses have not been independently verified by us, and inclusion here is not an endorsement. Always do your own checks before hiring.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Quick Comparison — Solar Installers in Honolulu, HI
Residential and commercial solar installation is the focus at Sunspear Energy, serving Honolulu homeowners looking to reduce grid dependence in one of the country's highest-cost electricity markets. The company holds a 4.9-star rating across 120 Google reviews, reflecting consistent performance on local rooftop projects. Sunspear Energy operates out of the 96817 area, keeping its work concentrated within the Honolulu metro.
Residential and commercial solar installation is the focus at Malama Solar, a Honolulu-based contractor serving the 96819 area and surrounding neighborhoods. With a 4.6-star rating across 200 Google reviews, the company has built a consistent record in Hawaii's competitive solar market. Customers report straightforward project timelines and clear communication from initial assessment through final grid connection.
OceanHead Solar & Electric is a solar installation company serving Honolulu, with a 4.9-star rating across 39 customer reviews. The company handles both solar and electrical work, making it a practical option for homeowners looking to consolidate those projects under one contractor. Its service area centers on the 96819 corridor and surrounding Oahu neighborhoods.
Honolulu homeowners and businesses looking to reduce grid dependence turn to PV Tech for solar panel installation across the 96822 area. The company holds a 4.7-star rating across 36 Google reviews, reflecting consistent results in a market where roof conditions and utility rates make solar a practical consideration. Their work covers residential and commercial properties throughout the city.
Inspired Energy Solutions is a solar installation company serving Honolulu, with a 4.8-star rating across 22 Google reviews. The company works with residential and commercial clients in the 96816 area, handling system design and installation for properties looking to reduce grid dependence in one of the country's sunniest markets.
SolarTech Industries is a solar installation company serving Honolulu, HI 96813. With a 4.6-star rating across 25 Google reviews, the company has built a steady local reputation for residential and commercial panel installations in one of the country's sunniest metro areas. Their website at solartechindustries.com outlines available services and project options.
Photonworks Engineering focuses on solar panel installation for residential and commercial properties in Honolulu. The company holds a 4-star rating across 12 Google reviews, reflecting consistent work in the 96819 area. Clients in the neighborhood can expect straightforward project scoping without the upsell approach common to larger regional contractors.
Residential and commercial solar installation is the core focus at Island Pacific Energy, a Honolulu-based contractor serving Oahu homeowners looking to offset Hawaii's high electricity costs. The company holds a 4.1 rating from verified Google reviewers. System design and panel placement are tailored to each property's roof orientation and local sun exposure.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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How much does solar installation cost in Honolulu?
A typical residential solar installation in Honolulu runs between $15,000 and $35,000 before incentives, depending on system size. Most single-family homes in areas like Pearl City or Aiea end up with systems in the 6 to 10 kilowatt range, which lands roughly in the $18,000 to $28,000 bracket before the federal Investment Tax Credit and any state credits are applied. Hawaii offers a state income tax credit of up to 35% of the system cost, capped at $5,000 for a single-family residence, stacked on top of the 30% federal credit. After both incentives, many homeowners bring their net cost down to the $9,000 to $16,000 range. Adding battery storage, such as a Tesla Powerwall or Enphase IQ battery, adds roughly $8,000 to $15,000. Factors that push the price higher include steep or complex roof angles, older roofing materials that need reinforcement, electrical panel upgrades, and premium panel brands. Getting two or three detailed quotes is normal practice and often reveals meaningful differences in equipment quality and labor costs.
How long does a solar installation take from signing a contract to system turn-on in Honolulu?
The physical installation itself usually takes one to three days depending on system size, but the overall timeline from signed contract to a live system is typically two to four months in Honolulu. The bulk of that wait is permitting and utility interconnection. Oahu requires city building permits and a separate application to Hawaiian Electric for grid interconnection, and processing times at both agencies can run several weeks. Reputable installers will handle all of that paperwork on your behalf and keep you updated at each milestone. If an installer quotes you a faster timeline, ask specifically which steps they're counting and whether the interconnection approval is included, because that's the step that holds most projects up.
Does my roof need to be replaced before installing solar panels in Honolulu?
Not necessarily, but it's worth getting your roof assessed before you sign anything. Solar panels typically come with 25-year production warranties, so if your roof is more than 15 years old or showing signs of wear, most installers will recommend replacing it first. Doing that before panels go on saves you the cost of removing and reinstalling the array later. On Oahu, roofing materials matter too. Concrete tile roofs, which are common in Hawaii Kai and Ewa Beach, require specific mounting hardware and add slightly to install complexity compared to asphalt shingle or metal roofs. A good installer will inspect your roof condition as part of the initial site assessment and give you a straightforward recommendation rather than pushing you straight to contract.
What is net energy metering and how does it work in Hawaii?
Net energy metering, commonly called NEM, is the billing arrangement where excess electricity your solar panels send back to the grid is credited against what you draw from the grid when the sun isn't shining. Hawaii has had a few different versions of this program, and the rates and terms for new customers have changed over time. Currently, new solar customers on Oahu connect under Hawaiian Electric's Customer Grid-Supply or Smart Export programs, and the credit rate for exported power is lower than the retail electricity rate, which is why many installers now push battery storage alongside panels. With a battery, you use more of what you generate yourself and export less, which makes the economics better under the current structure. Before signing a contract, ask your installer to model both a battery and non-battery scenario using your actual electricity bills so you can see the projected payback period for each option.
Are there specific licenses or certifications I should look for in a Honolulu solar installer?
Yes, and they're worth confirming before you hand over a deposit. In Hawaii, solar contractors must hold a valid state contractor's license, typically a C-61 specialty contractor license for solar photovoltaic work. You can verify any contractor's license status through the Hawaii Department of Commerce and Consumer Affairs Professional and Vocational Licensing division online. Beyond the state license, look for installers whose crews hold NABCEP (North American Board of Certified Energy Practitioners) certification. NABCEP is the main professional credential in the solar industry, and an installer with certified technicians on staff signals that the work meets a documented standard. Also confirm the company carries general liability insurance and workers' compensation coverage. If a worker is injured on your roof and the company lacks workers' comp, you can be held liable.
How do I compare quotes from different solar installers and decide which one to go with?
Start by making sure you're comparing the same things. Ask each installer to provide a written proposal that lists the panel brand and model, the inverter type (string inverter, microinverters, or power optimizers), total system capacity in kilowatts, estimated annual production in kilowatt-hours, full itemized costs, warranty terms on both equipment and workmanship, and how they handle permitting and interconnection. Don't just compare bottom-line price. A $2,000 difference between quotes can reflect a cheaper panel brand, a less experienced installation crew, or thinner warranty coverage rather than a genuine saving. Check online reviews on multiple platforms and look specifically for comments about post-installation support, since that's where some companies fall short. Ask each company for references from jobs completed in your neighborhood, ideally homes with a similar roof style. Finally, confirm their license status yourself through the DCCA website rather than taking their word for it.
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