new applications
2025 Installation Schedule Full
Now Accepting Applications for January 2026

Mahalo Hawai‘i for your support! Due to overwhelming demand, our 2025 installation schedule is now closed. We are currently taking applications for January 2026 and onward. Secure your spot today and take advantage of available state tax credits before they change.

Clean, Renewable Energy
Harness the Powerof the Sun!

For your home or business—go solar and take control of your energy future.

Maximize Your Savings
Unlock Solar Incentives & Battery Bonuses

Take advantage of Hawaii tax credits and HECO’s Battery Bonus Program before they expire.

Built for Hawaii
Trusted Solar Solutions 
Since 1993

Thousands of island homeowners trust Alternate Energy Hawaii to power their future.

Go Solar Today
Power your Home with the Sun

Lower your bills and your carbon footprint with Hawaii’s leading solar provider.

We are providing awesome 20+ green energy services.
*You agree to green energy terms of service.
59+ MW Solar panels installed powering 10,000 homes!
Locally Owned Since 1993

Powering Hawaii’s Future with Trusted Renewable Energy

For over 30 years, Alternate Energy has helped Hawaii families and businesses save with solar, HVAC, roofing, EV charging, and more—all installed by our in-house team. Discover why we’re consistently voted Oahu’s best in solar, air conditioning, and plumbing.

Alternate Energy
Built for Every Home & Business

Smart Solutions That Fit Your Needs

We offer premium service combined with premium products.

Free Quote
Find out how much you can save with solar — no pressure, no commitment.  Get free quote
Energy-Smart Families Speak Up

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 stories
Photovoltaic
The Lee Family
Nuuanu

We wanted to get our electricity from the sun, not the electric company. Jeff Lee was professional, straightforward, and still answered our questions months after the install. Now our bill is down to just $18 a month—we’ve been recommending AEI to all our friends.

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Photovoltaic
The Antonio Family
Ewa Beach

As a former contractor, I appreciated that AEI focused on product quality—not just financing. Jeff Lum was informative and professional, and the installation went perfectly. With my condition, we rely on AC every day, so saving on our bill has made a real difference.

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Energy Efficient Air Conditioning
The Matsumoto Family
Kapolei

Even with the AC running all day and night, our electric bill went down. Roy was incredibly responsive—it didn’t feel like talking to a sales rep, it felt like talking to family.

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Photovoltaic
The Benros Family
Ewa Beach

We had a great experience with AEI. Dave Thompson helped us understand our options, the tax credits, and the whole installation process. We went with AEI because everything—panels and all—was Mitsubishi. We’ve already referred four friends.

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Photovoltaic
The Adams Family
Waialua

AEI made everything simple and easy to understand. Our bill dropped from $600 to $200 a month, and I was so impressed I recommended them to my parents. We’re already planning to add more panels.

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Photovoltaic
The Vaeena Family
Honolulu

Our electric bill dropped from over $200 to just $18 a month—even after adding two AC units. Thanks to AEI and Roy’s help, we finally had the freedom to enjoy things like paddle boarding as a family.

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Community & Innovation

See What’s Powering the Change

Trusted & Certified

Our Accreditations and Industry Partnerships

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