There’s no shortage of solar companies in Hawaii. So we figured, why not save you some time? We researched the local residential solar installers and read through hundreds of reviews.
These residential solar companies made the cut because they do good work consistently. They understand Hawaii’s solar scene, they’re responsive when issues pop up, and their customers tend to be happy. Worth a conversation if you’re serious about solar energy for residential homes.
Find the Best Solar Installers in Hawaii
RevoluSun review 660 Ala Moana Blvd Ste 220A Honolulu, HI 96813
Mālama Solar review 1050 Queen Street #100, Honolulu HI, 96814
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Malama Solar read more…
Independent Energy Hawaii review 1200 Ala Moana Blvd. #380 Honolulu, HI 96814
Our Expert Choice badge goes to Independent Energy Hawaii, which concentrates on serving fewer than 1 state. With a foundation read more…
Mālama Solar review 590 Paiea St. Honolulu, Hawaii 96819
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Malama Solar read more…
Mālama Solar review 590 Paiea St, Honolulu HI, 96819
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Malama Solar read more…
HI POWER Solar review 98-723 Kuahao Pl. Ste. A-13, Pearl City HI, 96782
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, HI POWER read more…
Family First Solar review 590 Farrington Hwy #210, Kapolei, HI 96707, United States
Family First Solar is rewarded with our Expert Choice badge, serving an exclusive area of fewer than 1 state. With read more…
Hawaii Unified review 84-1170 Farrington Hwy., Waianae, Hawaii 96792, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Hawaii Unified read more…
Sun King Inc review 365 Hoohana Bay 6a, Kahului, HI 96732, Kahului, Hawaii, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Sun King read more…
WikiWiki Solar & Electric review 330 Hoohana St Unit B14, Kahului, HI 96732, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, WikiWiki Solar read more…
Rising Sun Solar review 269 Papa Pl, Kahului Hawaii, 96732
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Rising Sun read more…
Rising Sun Solar review 810 Kokoma Road Suite 160, Haiku HI, 96708
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Rising Sun read more…
Rising Sun Solar review 810 Kokomo Road Suite 160 Haiku, HI 96708
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Rising Sun read more…
Rising Sun Solar review 1520 Haleukana St, Lihue HI, 96766
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Rising Sun read more…
Renewable Energy Services Inc. review 45-487 Lehua Street, Honokaa, Hawaii 96727, United States
With an overall third-party rating of 4+ and positive feedback across more than 10 reviews from different platforms, Renewable Energy read more…
How Much Can Residential Solar Panels Save You in Hawaii?
There’s no simple answer to how much you’ll save with solar power for residential homes in Hawaii – it really depends on your situation. Your utility company’s billing structure matters, as does the size of the residential solar power system your roof can handle and how much electricity your household uses. Most installers will try to cover all your energy needs, but your actual savings depend on your home’s unique setup.
Before incentives, expect to pay somewhere between $15,000 and $30,000 for a typical residential solar installation in Hawaii. The exact cost depends on your residential solar energy system size and energy requirements.
Want an estimate just for you? Fill out the form on our website, try a solar calculator, or consult with a couple of local residential solar installers for a personalized savings calculation.
Solar Financing Explained for Residential Solar Systems
You’ve got several ways to pay for solar panels:
- Cash
- Solar loans from installers
- Personal loans
- Cash-out refinance or HELOC
- Solar leases or PPAs
Paying Cash: Cash gives you the best long-term savings and the lowest overall cost for your residential solar power system. But let’s be real – not everyone has $15,000 to $20,000 sitting in the bank. If you want to own your system but can’t pay up front, financing is your next option.
Getting a Loan: Personal loans, home equity lines, or installer-offered solar loans all work. Just watch out for the fine print – loans come with interest and fees. Many solar loans include dealer fees that can bump up your total residential solar installation cost by 20% or more (they offset this with lower interest rates). Smart move? Compare dealer fees and rates between different residential solar companies before signing anything.
Don’t skip this: ask for their cost per watt. That’s your real comparison tool when residential solar energy system sizes vary between installers.
Leasing or PPAs: Some businesses let you rent or buy power with no money down. It sounds great, doesn’t it? The catch is that you don’t own the panels, so you can’t get rebates or federal incentives. Also, the monthly payments to the solar company take money out of your savings.
Get detailed savings projections from installers before deciding. Even with financing costs, you’ll typically still pay less for electricity than you do now. Understanding all your options – including available federal and state programs – helps you make the smartest financial choice for your residential solar energy system.
Discover Your Solar Savings in 60 Seconds
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Average Solar Panel Cost in Hawaii
If you're thinking about going solar in Hawaii, you're probably wondering how much solar panels cost and what it'll actually cost you. The cost of solar panels and how much it costs to install solar panels are common questions for homeowners considering residential solar installation. While the upfront solar panels prices might seem high, the Hawaii state tax credit still provides significant savings.
What You'll Pay for Solar Panels in Hawaii
| System Size | Cost Before Incentives | After State Tax Credit (35%) | ||
|---|---|---|---|---|
| 4 kW | $11,280 - $12,360 | $7,932 - $8,652 | ||
| 5 kW | $14,100 - $15,450 | $9,915 - $10,858 | ||
| 6 kW | $16,920 - $18,540 | $11,898 - $13,064 | ||
| 8 kW | $22,560 - $24,720 | $15,864 - $17,388 | ||
| Pricing Disclaimer: The solar panel prices shown are estimates based on data collected from online sources as of January 2026. Actual costs may vary based on your location, system specifications, and installer. | ||||
Right now, the cost to install solar panels in Hawaii runs roughly $2.82 to $3.09 per watt for a complete residential solar installation. The residential solar cost per watt is influenced by Hawaii's unique location and installation requirements. Most Hawaiian homes need a 5 kW system, which runs between $14,100 and $15,450 before any tax credits kick in. After the 35% state credit (capped at $5,000), you're looking at $9,100 to $10,450 out of pocket for your average cost of a residential solar system.
Why is the cost of solar panel installation higher here than on the mainland? Shipping equipment to the islands, higher labor rates, and more complex permitting all add to the price tag. But here's the thing—Hawaii's electricity rates are so astronomical that residential solar panels still make financial sense for homeowners.
Smaller Systems Work in Hawaii
You'll notice these system sizes are smaller than what you'd see in most mainland states. That's because Hawaii residents use way less electricity—only 500 to 544 kWh per month on average, which is actually the lowest in the country. A 4 to 5.5 kW system is typically enough to cover most of your needs.
Should You Add Battery Storage?
Most installations here include batteries, and there's a good reason for that. Since Hawaii phased out traditional net metering back in 2015, you can't just send excess power to the grid and get full credit anymore. Batteries let you store that energy and use it later, which is especially valuable during evening hours when the sun's not shining.
Adding batteries will increase your total cost by $10,000 to $15,000, putting complete solar-plus-storage systems in the $20,000 to $40,000 range before incentives. It's a bigger investment upfront, but it gives you real energy independence.
Solar Incentives and Tax Credits in Hawaii
Hawaii still offers valuable solar incentives, though the landscape has changed significantly. Working with experienced residential solar installers and residential solar companies can help you maximize these available incentives.
Hawaii State Tax Credit
Hawaii offers a 35% tax credit on your total system cost, capped at $5,000 for single-family homes. Multi-family properties get 35% or $350 per unit, whichever is less. This credit applies to everything—panels, inverters, batteries, installation labor, permits, the whole package.
The state credit is pretty flexible. You can roll over any unused portion indefinitely, or you can take a 30% reduction and get a refund for whatever you can't use in the first year. If you can't use the full credit in one year, you can carry it forward to future tax returns.
What Happened to Net Metering?
If you've heard older solar stories from Hawaii, they probably mention net metering. That program ended for new customers in October 2015. Existing customers still have it, but if you're installing now, you've got three options:
- Smart Renewable Energy Export: You can send excess power to the grid, but you won't get retail rates for it. Instead, you'll earn about 7 cents per kWh during the day, 18 cents during evening peak hours, and 13 cents overnight. That's way less than the 40 to 43 cents you're paying for power from the grid.
- Smart Renewable Energy Non-Export: This is the non-export option. Everything you generate stays on your property—either gets used immediately or goes into batteries. You can't send anything to the grid. The upside? You get expedited permitting.
- Bring Your Own Device (BYOD): If you've got a battery system, you can participate in this program and get $100 per committed kW upfront, plus $5 per committed kW every month. It's way less generous than the old Battery Bonus Program, but it's something.
Financing Options
The state runs a program called Green Energy Money $aver (GEM$) that offers on-bill financing at a fixed 5.5% interest rate for up to 25 years. What's nice about this is there's no credit check or income verification, so more homeowners can qualify.
Electricity Rates in Hawaii
Let's talk about why solar makes so much sense here. Hawaii has the most expensive electricity in the entire United States—and it's not even close.
As of 2026, residential rates are running between 40 and 43 cents per kWh. The national average? Just 16.37 cents. Your typical monthly bill here is $200 to $213, even though Hawaii residents use far less electricity than the average American household.
These sky-high rates are exactly why solar pays for itself so quickly in Hawaii. Even without full net metering credits, most systems hit payback in 7 to 10 years. After that, you're essentially getting free electricity for the remaining 15 to 23 years of your panels' lifespan.
Specific Considerations for Hawaii Solar
Solar Resource
Hawaii's location near the equator means you're getting excellent sun exposure year-round. Most of the islands see between 4.5 and 6.5 kWh/m²/day of solar irradiance, though this varies depending on whether you're on the windward or leeward side of an island, your elevation, and how the trade winds affect local cloud patterns.
What's great about Hawaii is the consistency. You don't have the dramatic seasonal swings you see on the mainland. Year-to-year variations in solar production are only about 2%, which makes your energy production very predictable.
Climate Factors
The tropical climate is mostly a positive for solar. You get steady production all year, you never have to worry about snow covering your panels, and temperatures stay in a range that keeps panels operating efficiently. More than 19% of Hawaii residents already have solar, and the state's committed to reaching 100% renewable energy by 2045.
The challenges come from the salt air and humidity. You need corrosion-resistant hardware and mounting systems, and regular cleaning helps prevent salt buildup on the panels. Make sure your inverter is properly protected from moisture too.
Permitting and Interconnection
Getting your permits depends on which island you're on. You'll need a county building permit, a county electrical permit, and an interconnection agreement from Hawaiian Electric that gets conditionally approved before you start construction.
On the neighbor islands—Maui, Kauai, and the Big Island—you're typically looking at 2 to 4 months from application to completed installation. Oahu has historically taken 4 to 6 months.
If you go with the Smart Renewable Energy Non-Export option (no grid export), you can sometimes get expedited review. Some counties also offer self-certification for qualifying installations.
Timeline Expectations
How Long Does Installation Take?
Once you decide to move forward, here's what the timeline typically looks like:
- Before installation (1-3 months): Your installer will assess your property and design the system in about 1 to 2 weeks. Then comes the waiting—permit applications and utility interconnection approval take 2 to 8 weeks, longer on Oahu. Equipment ordering adds another 2 to 4 weeks.
- Installation (1-2 weeks): The actual physical work goes pretty quickly. Panel installation and mounting takes 3 to 7 days. Electrical connections and system commissioning add another 1 to 3 days.
- After installation (1-2 months): You'll need building and electrical inspections from the county, which takes 1 to 3 weeks. Hawaiian Electric does their own inspection, adding 1 to 2 weeks. Then you're waiting for the utility to install your new bi-directional meter—anywhere from 1 to 4 weeks. Once that meter goes in, your system gets activated the same day.
Start to finish, you're looking at 4 to 6 months under normal circumstances. Hawaii County projects are running closer to 3 months.
Are Solar Panels Worth It in Hawaii?
Even with the federal tax credit gone, wondering "how much do solar panels cost in Hawaii" and "are solar panels worth it in Hawaii" are questions with clear answers: solar panels in Hawaii still make financial sense. Understanding the cost of solar panels in Hawaii and whether residential solar panels are a good investment requires looking at the bigger picture. Here's why:
Your electricity costs are brutal. At nearly 2.5 times the national average, you're hemorrhaging money on power bills. Solar generates immediate savings even when you're only getting 7 to 18 cents per kWh for exported energy instead of the full retail rate.
The state tax credit isn't going anywhere, so you'll still get 35% back (up to $5,000). That helps offset the upfront cost for residential solar panels significantly and reduces the overall cost of a residential solar system.
Batteries give you real energy independence. When the power goes out, you've still got electricity. And Hawaii's grid infrastructure isn't exactly known for perfect reliability.
Systems typically pay for themselves in 7 to 10 years. Your panels will keep producing for 25 to 30 years after that. Lifetime savings usually hit $40,000 to $75,000 or more—you're talking about tens of thousands of dollars staying in your pocket instead of going to the utility company. This long-term value makes solar energy for residential homes one of the best investments for Hawaiian homeowners.
There's also the environmental angle. Hawaii imports most of its energy, and the state's serious about transitioning to 100% renewables by 2045. Going solar means you're part of that transition.
Frequently Asked Questions
How Do We Rank Residential Solar Installers?
Picking a solar installer shouldn’t be a guessing game. We built our rating system to help homeowners make informed solar decisions and avoid common pitfalls in the industry.
Here’s how it works: 5-star system, plain and simple. Five stars means a company is legitimately excellent – the kind you’d recommend to your own family. One star? Run away. We wouldn’t touch them with a ten-foot pole, and neither should you. Our ratings pull from everywhere – EnergySage, SolarReviews, BBB, Google Reviews, Yelp, ConsumerAffairs, Trustpilot, the works. But we’re not just averaging star ratings like some algorithm. We read the actual reviews. Are they consistently delivering what they promise, or just occasionally getting lucky?
What Actually Matters When We Evaluate Residential Solar Companies?
- Years in business. Five minimum. Non-negotiable. If a company’s been around less than that, they haven’t weathered any real challenges yet. And think about it – solar panels last 25-30 years. You need an installer who’s built their business model around supporting customers long-term, not just showing up for installation day and disappearing.
- Local vs. national – and it’s not even close. Check the numbers yourself. Local residential solar installers consistently get better reviews than the big chains. Their reputation actually matters because word spreads fast in local communities. They know the permit process in Hawaii specifically. They understand your local utility company’s quirks and requirements.
- Hands-on experience. Residential solar energy companies that have hundreds of installations behind them move differently. They’ve seen every bizarre roof situation. They know exactly how to handle older homes with outdated electrical wiring. First-time installers? They’re figuring it out as they go – on your roof, with your money.
- Who’s actually doing the work? Some companies use their own crews. Others outsource everything to whoever’s available. Guess which ones deliver better quality? When residential solar energy companies employ their own installation teams, those workers know they’re accountable. Something breaks later? You call the company, and they send the same team that did the original work. With subcontractors, you’re lucky if you can track down who actually touched your system.
- What people actually say. We check SolarReviews, BBB, Google, Yelp – anywhere real customers leave feedback. But star ratings alone don’t tell the whole story. How does a company handle a one-star review? Do they fix the problem or argue with the customer? Customer reviews show what really happens after you sign the contract.
- Licenses and certifications. Should be obvious, but apparently it’s not. Licensed, insured, NABCEP certified if possible (that’s the actual gold standard for residential solar panel installers, not marketing fluff). Companies cutting corners on basic credentials – what else are they skimping on?
- Equipment quality swings wildly. Good residential solar energy companies stock equipment from solid manufacturers – SunPower, LG, Panasonic, Canadian Solar, brands like that. Lower-tier installers? They push whatever vendor gave them the best wholesale price this quarter, regardless of quality. Ask them straight up: “What brands do you install and why those specifically?” Watch how they answer. That’ll tell you if they prioritize system performance or profit margins.
- Payment options. The best residential solar companies give you real choices – loans, leases, PPAs – and actually walk you through what makes sense for your situation. Huge red flag: companies that only offer one financing option. Usually means it’s structured to maximize their profit, not your savings.
- Warranties separate the pros from the amateurs. Look for 10-12 years on workmanship, minimum. Strong performance guarantees. Your residential solar power system costs serious money. It better have protection beyond the basic manufacturer’s warranty on the panels themselves.
Our Classification System: What the Tags Mean?
We label companies to save you research time:
- Expert Choice: Long-established companies with extensive workmanship warranties and in-house installation crews exclusively. The veterans with the strongest track records.
- Trusted Provider: Multi-state operations that still manage to deliver quality work. Good local reputation, positive customer feedback. They handle installations directly instead of outsourcing.
- Market Leader: Tons of verified reviews, customers are consistently happy. Proven track record of consistent, reliable service.
Stick with “Expert Choice,” “Trusted Provider,” or “Market Leader” tags. They earned those classifications through actual performance, not by paying for better placement. The difference matters more than you’d think.
What to Look for in a Residential Solar Company?
Shopping for solar energy for residential use? Here’s what separates good residential solar companies from ones you’ll regret hiring:
- Check credentials first. NABCEP certification is what you want to see – it’s the real deal in solar. Beyond that, make sure they’re licensed, bonded, and insured for your area. Using subcontractors? Those crews better have proper credentials, too, not just some guys with ladders.
- Experience isn’t optional. Five years minimum in the business. Don’t be someone’s practice run. Ask straight up: “How many residential solar energy systems have you installed?” A confident residential solar panel installer will tell you the number and walk you through their equipment choices without hesitation. They should explain how they’ll help you tap into available incentives – and if they can’t clearly explain their warranties, that’s a red flag.
- Communication tells you everything. Here’s a test: Ask specific questions. “Why do I need this many panels?” “Break down the costs based on my actual usage.” “What brands are you proposing and why?” “What’s your per-watt price?” Good residential solar installers answer directly. Sketchy ones dance around numbers or pressure you to sign fast. Trust your gut – if they’re dodgy with answers now, imagine dealing with them when something breaks.
- One more thing on communication: Ask about their subcontractors. Who’s actually doing the work? How are they supervised? You deserve real answers.
- Your roof comes first. Any residential solar panel installer worth their salt will thoroughly inspect your roof before talking panels. They should tell you if repairs are needed upfront – not after they’ve torn into your shingles. Who pays if there’s damage during installation? Get that in writing. And yeah, talk about how it’ll look. Panel placement, where vents end up, all that matters when you’re staring at it every day.
- Do your homework on their reputation. Reviews matter, but dig deeper. Ask for references from recent customers. Even better – if you know anyone who’s gone solar, ask them who they used. Personal recommendations beat online reviews every time because people are brutally honest with friends.
- Always get multiple quotes. Always. Prices swing wildly between residential solar companies – sometimes by thousands. Here’s the key: calculate the cost per watt for each proposal. That’s your apples-to-apples comparison, even if residential solar energy system sizes differ slightly. Get three quotes minimum. You’ll quickly learn what’s fair pricing and what’s someone trying to fleece you.
Should You Choose a Local Solar Installer or a Big National Company?
Go local. It makes a difference.
Small local residential solar companies consistently get better reviews than big national operations. The reason is simple: solar energy for residential use is inherently a local business. Providing good customer service across multiple states from a central office? Nearly impossible.
Local residential solar energy companies have skin in the game. They know your area’s incentives and regulations inside and out. They care about their reputation because word spreads fast in local communities. And they’re not trying to hit some corporate sales quota – they want you to be happy so you’ll refer your neighbors.
National companies will pitch their “financial stability” and “consistent quality across locations.” Don’t buy it. When something goes wrong (and eventually, something always does), you want a local company that answers their phone and can send someone over – not a call center that routes you to whoever’s available.
Find a local residential solar panel installer that checks all your boxes and specializes in your area. You’ll be happier for it.
What Does a Residential Solar Installation in Hawaii Look Like?
So you’ve approved your residential solar power system design. What happens next?
- They’ll dig into your energy use. Pull out your utility bills from the last year – installers need to see your actual consumption in kWh. This isn’t busywork. These numbers determine everything: how much you’ll save, when you’ll break even, and what size system makes sense for your home.
- Expect a home energy audit. Good residential solar energy companies don’t skip this. They’re looking at your consumption patterns, when you use the most power, all that. It’s how they properly size your system instead of just slapping panels up there and hoping for the best.
- Your roof gets scrutinized. Is it in decent shape? Facing the right direction? They’ll inspect everything – structural integrity, orientation, shading issues. This determines where panels go and how they’ll run the wiring without making your house look like a science experiment.
- Design gets finalized. They’ll show you renderings of what your residential solar energy system will actually look like on your roof, plus production estimates and costs specific to your situation.
- Paperwork time. Hawaii requires permits for residential solar installation. The good news? Your installer handles this headache. If they’re telling you to pull permits yourself, find a different company.
- The waiting game. Here’s the reality: start to finish, you’re looking at about 3 months. Permits take time. Inspections take time. Getting utility approval takes time. The actual installation on your roof? That’s usually done in 3 days, maybe longer if your roof is complicated or the system is big. Most of those 3 months are just waiting on bureaucracy.
- Installation day arrives. The crew shows up, gets everything installed, and cleans up after themselves. Professional crews leave your property cleaner than they found it – you shouldn’t see a single zip tie or scrap of wire left behind. Just new panels on your roof.
- Inspection happens. The city sends someone out to verify everything meets code and safety regulations. This is required – no way around it. Once you pass, you’re almost there.
- Grid connection is the final step. Your residential solar power system gets wired to the utility company, you apply for interconnection, and they’ll inspect it, too. Some residential solar panel installers handle this entire process for you; others make you deal with the utility. Ask upfront who’s doing what. Once all the approvals are in? Flip the switch. You’re making your own power.
