Important Hawaiʻi Solar Tax Credit Update
Storm Preparedness
There is no single best solar company in Hawaii, because the right installer depends on your roof, your Hawaiian Electric rate and your budget. Check that a company holds a Hawaii contractor license, is BBB accredited and has years of local installs. Alternate Energy Hawaii has all three, so compare us with two others.
Proof you can verify
Hawaii contractor license C-26041. Look it up with the state’s professional and vocational licensing search.
Accredited since October 20, 2010.
Named in December 2023, with hundreds of Powerwall systems installed across Hawaiʻi.
168 reviews, as listed in August 2026.
According to AEI, we have installed over 59 MW of Mitsubishi Electric solar panels since 2011, powering 10,000 homes.
Hear from Oʻahu families who went solar with us.
Our services
We work with homeowners and businesses across Oʻahu. Choose the service you need, or request a free estimate and we will tell you what fits your roof and your bill.
Ask for the contractor license number and look it up with the state. Check the BBB profile. Ask which manufacturers certify the installer. Get the estimate in writing, with the equipment, the system size and the warranty. Our photovoltaic systems carry a 10-year warranty, and our solar water heating systems carry 10 years as well.
Our office is at 96-1276 Waihona Street, Suite 114, Pearl City, Oʻahu. We serve homes and businesses on Oʻahu. Call (808) 842-5853 or request a free estimate. Existing customers can reach PV tech support at (808) 380-6845.
96-1276 Waihona Street, Suite 114
Pearl City, HI 96782
Locally owned solar, battery, and energy services since 1993
Since 1993, Alternate Energy Hawaii has helped local families and businesses lower electric bills, add battery storage, and build reliable energy systems designed for island life.
Hawaii Solar Incentive Planning
Act 24 updates Hawaii's solar tax-credit program, but many homeowners and businesses continue to evaluate solar and battery storage because of rising utility costs, energy resilience goals, and long-term energy planning needs.
Trusted by Hawaii homeowners since 1993 for solar, battery, roofing, electrical, AC, and local energy support.
Why homeowners choose AEI
Powering Hawaii’s Future with Residential Solar and Sustainable Energy
For over 30 years, Alternate Energy has helped Hawaii families and businesses embrace sustainable energy solutions with solar, HVAC, roofing, EV charging, and more—all installed by our in-house team. From photovoltaic panels delivering clean electricity to advanced rooftop energy systems designed for residential solar projects, discover why we’re consistently voted Oahu’s best in solar, air conditioning, and plumbing.
We offer premium service combined with premium products designed to maximize solar efficiency and deliver reliable clean electricity. Whether you’re exploring residential solar or large-scale commercial solar projects, our tailored approach ensures you get the most value from your investment. With flexible solar financing options, achieving long-term savings and sustainability has never been easier.
Federal and Hawaiʻi solar incentives may help reduce the cost of photovoltaic systems, but incentive programs and eligibility requirements can change over time. Alternate Energy Hawaii recommends consulting a qualified tax professional regarding your specific situation.
Capture excess power, store it onsite and have it delivered when you need it, without exporting to the grid.
Mitsubishi Split Ductless AC systems are up to 40% more efficient than traditional HVAC systems.
In Hawaii, up to 40% of the average family’s electric bill goes toward heating water.
Let our in-house team of licensed electrical journeymen handle your next repair or renovation.
We are a certified 5-Star CertainTeed installer!
Let AEI's experienced electrical journeymen install your EV charging station.
Trusted by Local Families
At Alternate Energy, customer satisfaction is at the heart of everything we do. Read real stories from homeowners who trusted us for their solar, PV, and AC needs — and see the difference quality service, expert installation, and great value can make.
See all storiesOur Accreditations and Industry Partnerships
Built for Hawaii Since 1993
AEI brings solar, battery storage, roofing, electrical, AC, and EV charging together under one local team, so your energy project can be planned around Hawaii utility rates, HECO requirements, roof readiness, and long-term island support.
Solar, batteries, roofing, electrical, AC, and EV charging work together. AEI helps homeowners and businesses avoid disconnected decisions by planning the whole energy system.
Battery backup and energy independence planning help Hawaii families decide what should stay powered when the grid is down, from refrigeration and lighting to critical home circuits.
After installation, local support matters. AEI helps customers understand monitoring, maintenance, battery settings, and next steps if equipment needs attention.
Solar incentives, tax credits, HECO programs, and financing options can change. AEI helps customers compare practical paths before committing to a system design.
Buyer Confidence
AEI provides local support for system questions, monitoring concerns, maintenance direction, and future upgrades. A solar project should not end when the panels turn on, especially in Hawaii where batteries, HECO programs, and utility rules can affect long-term performance.
Monitoring interruptions can come from internet changes, equipment communication issues, or inverter/battery settings. AEI customers can contact support so the team can help identify whether the issue is connectivity, settings, or equipment that needs service.
A solar-ready roof should have enough remaining life, clear usable space, and a structure suited for the proposed system. AEI can evaluate roof readiness and connect solar planning with roofing and electrical considerations before installation.
Battery timing depends on outage concerns, budget, HECO program availability, and how much backup power you want. Some homes benefit from designing solar and battery together, while others may plan battery readiness for a future phase.
A local installer understands island weather, utility requirements, roof conditions, permitting timelines, and local support expectations. Those details matter when comparing a Hawaii-based energy team with a national sales-first provider.
Solar projects typically require design review, permitting, utility coordination, and inspection before final operation. Timelines can vary by project and program, so customers should ask each installer how they manage permitting and HECO interconnection steps.