Why Choose Alternate Energy

Our Story

Founded in 1993 by the Ekimura Family, Alternate Energy, Inc. has been growing slowly and steadily for more than 28 years, becoming a front-runner in Hawaii's renewable energy revolution. 

AEI is driven by the knowledge that more renewable and energy efficiency installations, like solar, means less dependence on expensive oil and electricity. Solar allows Hawaii families and businesses to keep more of their hard-earned dollars.

All of our installers are AEI employees, not subcontractors. AEI takes full responsibility for every installation, no matter how large or small. We purchase high quality materials and systems direct from the manufacturer. Without a middleman, we can pass savings on to our customers. 

Today, we are one of Hawaii's oldest residential and commercial solar energy companies, locally owned and operated from day one. As always, we will continue to focus on what we do best: designing and installing photovoltaic systems, HVAC systems, solar water systems, and solar attic fans.

Alternate Energy on Hawaii News Now

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Renewable Energy For Your Future

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“Alternate Energy named the first and only Panasonic Elite Installer in Hawaii! - After a successful run of installing Mitsubishi premium panels for the past 8+ years, AEI has now partnered with Panasonic Solar to install their high wattage and high efficiency premium panels with an industry leading 25 year warranty!”
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Elite Status
“Since 2011, AEI has installed over 59 MW of Mitsubishi Electric’s premium solar panels to power 10,000 homes - more than any other Mitsubishi Electric solar contractor in the U.S.!​​”
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Proven Track Record
We’ve Got You Covered

Our In-House Engineering, Electrical, Roofing, and Plumbing Teams are fully licensed for the job. We hold C-60, C-61, C-13, C-52, CT-36716, PJ11851, & C-38192 State of Hawaii Certified Journeyman Licenses, ensuring that all of our installations are properly completed.

We take a ‘designbuild’ approach with all of your projects. This creates a single point of design, construction, and most importantly, responsibility to ensure a smooth overall experience.

Alternate Energy offers outstanding warranties across the board on our workmanship. 10 years for PV, 10 years for Solar Water, and 2 years for AC!

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