Why Choose
Alternate Energy
We deliver more than solar. We deliver confidence, comfort, and long-term savings.
See what sets AEI apart from the rest.
Our Story.
Founded in 1993 by the Ekimura Family, Alternate Energy, Inc. has been growing slowly and steadily for more than 30 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.
Rooted in Hawaii. Leading in Clean Energy.
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, Solar Attic fans, EV charging, and Roofing.
Best of Hawaii — 3 Years Running
Alternate Energy was voted Best Solar Company, Best Air Conditioning Company, and Best Plumbing Company on Oahu on KITV 4's BEST OF HAWAII awards 3 years in a row! For our first year, we have also won the award for Best Roofing Company for 2023.
Locally Owned
AEI is a locally-owned, Kama‘aina company and have been voted Hawaii’s Best Solar Company by our community 2016-2018. We are BBB accredited with an A+ rating, and we continue to be in Hawaii Business Magazine’s Top 250 Companies year after year.
Mitsubishi Elite Diamond Contractor
We maintain our Mitsubishi Electric Elite Diamond Contractor status. AEI is the first Diamond Elite HVAC (Heating, Ventilation, and Air Conditioning) contractor in Hawaii. We are dedicated to continuous education and quality service to uphold this Elite ranking.
Panasonic Elite Installer
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!
Proven Track Record
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.!
Licensed
In-House Teams
Our In-House Engineering, Electrical, Roofing, and Plumbing Teams are fully licensed for the job. We hold the following State of Hawaii Certified Journeyman Licenses, ensuring that all of our installations are properly completed.
- C-60
- C-61
- C-13
- C-52
- CT-36716
- PJ11851
- EC-38192
Design-Build Approach
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.
10 years for PV, 10 years for Solar Water, and 2 years for AC!
Our Accreditations and Industry Partnerships
