Alternate Energy Inc.

Alternate Energy Inc. is a family-owned energy company founded in 1993 by Bruce Ekimura, with offices at 96-1276 Waihona St, Suite 114, in Pearl City. The company started by installing solar water heating systems and expanded over the decades to include photovoltaic solar PV, battery storage, HVAC, roofing, and EV charging. All installations are performed by Alternate Energy’s in-house team rather than subcontractors, giving the company direct quality control over every project.

The company installs Panasonic solar panels paired with Enphase microinverters and offers Tesla Powerwall battery storage. Beyond solar PV, Alternate Energy provides Mitsubishi HVAC systems, solar water heating, plumbing, electrical, and general contracting services. This breadth of services makes them a one-stop shop for homeowners looking to upgrade multiple systems at once. The company consistently appears in Hawaii Business Magazine’s Top 250 Companies list.

Alternate Energy holds a 4.5-star rating on Yelp from 163 reviews, making it one of the most-reviewed solar companies in Hawaii. The company maintains an A+ BBB rating with accreditation and was a finalist in the BBB Torch Awards for business ethics. Customers praise the company’s long track record, quality workmanship, and ability to bundle solar with HVAC and roofing projects.