If you're comparing solar quotes on Oʻahu, one of the first forks in the road is whether to lease a system or buy one. Both put panels on your roof and both can lower what you send Hawaiian Electric each month. What differs is who owns the equipment, who gets the incentives, who handles repairs, and what happens when you sell or refinance.
Our team has been installing solar in Hawaii since 1993, and this is one of the questions we hear most. Below, we walk through solar lease vs buy in plain language, including what changed in 2026, so you can weigh the trade-offs against your own home, your utility account and your plans.
For most Hawaii homeowners who plan to stay put, have a sound roof and can pay cash or qualify for financing, buying solar panels usually delivers more long-term value, because you own the system and keep what it produces. A solar lease can make sense if you want little or no money down, prefer not to deal with ownership, or can't use financing right now. The right answer depends on your roof, your budget, how long you'll stay, and whether you want battery backup.
With a solar lease, a third-party company owns the system on your roof. You pay a fixed monthly amount, often for 20 years or more, to use the power it produces. The leasing company typically handles monitoring and repairs, and it keeps any tax credits or incentives tied to the equipment.
A close cousin is the power purchase agreement (PPA). Instead of a flat monthly lease payment, you pay a set rate for each kilowatt-hour the system produces. Many of the same pros and cons apply, so when we say "lease" below, most of it holds true for a PPA too.
When you buy, you own the system outright. You can pay cash or finance it with a solar loan, and in both cases the equipment belongs to you. You decide how it's designed, whether to add a battery later, and which utility programs to join. You're also responsible for the system over its life, which is where installer warranties and support matter.
The lease-or-buy math looks different this year than it did even 12 months ago. Three changes are worth understanding before you sign anything.
For years, the 30% federal Residential Clean Energy Credit was one of the strongest arguments for buying. According to the IRS Residential Clean Energy Credit guidance, that credit is not available for property placed in service after December 31, 2025. Businesses, including solar leasing companies, fall under separate federal business energy credits with their own rules and deadlines. That's one reason some national companies now push leases harder than before. It's worth asking any lease provider how the credits it claims are reflected in your price.
Hawaii's Renewable Energy Technologies Income Tax Credit is still part of the picture, but it's changing. SB3125, now Act 24, adds new eligibility requirements, certification provisions, an aggregate cap and a future sunset, beginning with taxable years after December 31, 2026, according to the Hawaiʻi State Energy Office. In June 2026, Governor Green issued Executive Order 26-02, which the Energy Office says effectively preserves the solar credit for 2026, with conditions. Guidance is still being developed, so we explain what Act 24 changes in more detail on our blog, and we encourage every customer to confirm their own eligibility with a qualified tax professional. With a lease, any credit tied to the equipment goes to the owner, which is the leasing company, not you.
Hawaiian Electric's Bring Your Own Device (BYOD) Plus program pays an upfront, per-kilowatt incentive for new batteries paired with rooftop solar, in exchange for a five-year commitment to share stored energy during a daily window. Hawaiian Electric states that if a lease is signed for the battery, the leasing company is the system owner and receives the upfront incentive. If you buy, it's paid to you. For families thinking about solar plus battery storage for outage backup, that difference belongs in your comparison.
Because every roof, electric bill and financing situation is different, we don't quote savings figures in an article like this. We do suggest comparing these points side by side on any offer you're considering:
For a closer look at the ownership side, see our breakdown of how photovoltaic costs stack up over 25 years.
Pros
Cons
Pros
Cons
National lease-vs-buy guides often skip the details that matter most here.
Many Oʻahu homes have roofs that are due for replacement within the life of a solar system. Reroofing before panels go up avoids paying to remove and reinstall them later. If you own your system, you control that timing. With a lease, check the contract for who pays and who performs the removal. We handle solar-ready roofing in house so the roof and the system can be planned together.
For many families, backup power during outages matters as much as the bill. If a battery is part of your plan, compare how each option handles it: who owns the battery, who receives HECO's incentive, and whether you can control how the battery is used.
Every rooftop system on Oʻahu has to be approved by Hawaiian Electric before it's turned on, and the program you join shapes how exported energy is credited. With an owned system, you and your installer choose the program that fits. With a lease, the leasing company generally makes those choices as the owner.
A lease is a contract tied to your property. When you sell, the buyer typically has to qualify for and agree to take over the lease, or you pay it off. That can add a step to escrow. An owned, paid-off system is simply part of the home.
For small and mid-size commercial property owners, the question is often framed as operating expense versus asset. A lease or PPA keeps capital free and turns solar into a predictable operating cost. Ownership puts the system on your books as an asset, may open business tax benefits your accountant can evaluate, and gives you control over the equipment for its full life. Lease terms, landlord and tenant arrangements, and roof warranties all deserve a close read before signing. Our article on treating solar as a business asset covers the ownership side for commercial properties in more depth.
If a lease is still on the table, get clear answers to these before signing:
Alternate Energy Hawaii is locally owned and has been serving Hawaii since 1993. Since 2011, we've installed more than 59 MW of Mitsubishi Electric solar panels, and we're a Tesla Premier Installer for Powerwall battery systems. Our installers are AEI employees, not subcontractors, and the same company supports your system after installation.
We design and install systems you own, paid for with cash or through financing with local lenders. We won't tell you ownership is right for every home. If you already have a lease offer, bring it to your consultation and we'll walk through it next to an ownership option, line by line. You can also see how to compare PV providers before you choose anyone, including us, and learn more about our in-house installation crews.
When you're ready, request a free solar evaluation and we'll look at your roof, your HECO bills and your goals together.
Solar is often one part of a bigger plan. Our in-house crews also handle:
For most homeowners who plan to stay and can pay cash or finance, buying offers more long-term value because you own the system, keep any credits you qualify for and can receive HECO's battery incentive. Leasing can fit if you want no money down or can't take on financing. Your roof, budget and plans decide it.
Generally, no. Tax credits tied to solar equipment go to the owner, and with a lease that's the leasing company. The federal homeowner credit ended for property placed in service after December 31, 2025, and Hawaii's state credit is changing under Act 24. Please confirm your situation with a qualified tax professional.
Savings depend on your electric use, roof, system size, contract terms and financing, so there's no single answer. Owned systems tend to deliver more value over the long run because there's no lease payment once a loan is paid off. Compare the full-term cost of each option on your actual quotes.
It can. A buyer usually has to qualify for and agree to take over the lease, or you'll need to buy it out before closing. An owned system transfers with the home.
It depends on your lease contract, and you'll likely need the leasing company's approval. If you own your system, adding a battery is your decision, and you can apply for HECO's BYOD Plus incentive as the owner.
Hawaii's electricity rates remain among the highest in the country, so solar continues to make sense for many households even with credits changing. Whether it's right for your home depends on your roof, usage and goals, which is what a site evaluation is for.