Alternate Energy Inc.

Name: Alternate Energy Inc.
Address: Honolulu, Hawaii, 96782, US
Telephone: +18088425853
Rating: 4.5

Honolulu, Hawaii · Solar Installation

Residential Commercial

33+ yrs

Experience

163 reviews

4.5 avg rating

60 km

Service radius

11-50

Employees

Get a Free Quote Call +18088425853 Visit Website

4.5

163 reviews

Est. 1993

SurgePV Score

8.8 / 10

Customer Reviews 90%

Certifications 50%

Experience 100%

Services Range 100%

Warranty Coverage 100%

Online Presence 100%

About Alternate Energy Inc.

Family-owned Hawaii solar and HVAC company with over 30 years of experience and an A+ BBB rating

Honolulu, Hawaii 96782

Services Offered

Solar Installation Battery Storage Solar Design Maintenance Grid Connection

Certifications

BBB A+ Rated BBB Accredited

Partner Manufacturers

Panels

Panasonic

Inverters

Enphase

Batteries

Tesla Powerwall

Warranty Coverage

25yr

Panel Warranty

12yr

Inverter Warranty

10yr

Installation Warranty

Installation Process

Initial Consultation

Free site assessment and energy needs analysis

System Design

Custom solar design tailored to your property and budget

Permitting & Approval

All paperwork and utility interconnection handled

Installation

Professional installation by certified technicians

Commissioning & Handover

System testing, monitoring setup, and warranty registration

Service Areas

Honolulu, Hawaii Pearl City, Hawaii Aiea, Hawaii Kapolei, Hawaii Ewa Beach, Hawaii Mililani, Hawaii Kailua, Hawaii

Customer Reviews

View all 163 reviews →

4.5

163 reviews

James H. Verified

Oct 8, 2025

Alternate Energy installed our solar system and a new Mitsubishi mini-split at the same time. Great value and the crew was experienced. Everything works perfectly.

Christine P. Verified

Jul 14, 2025

We've been customers since they installed our solar water heater years ago. Just added PV panels and the experience was just as smooth. Trustworthy company that stands behind their work.

Robert Y. Verified

Apr 2, 2025

Solid company with decades of experience. The pricing was reasonable and the installation was professional. Took a while for the utility approval but that's not their fault.

Write a Review

Frequently Asked Questions

How do I get a quote from Alternate Energy Inc.?

You can request a free quote by filling out the form on this page or contacting Alternate Energy Inc. directly via phone or email. Most installers provide a free initial consultation and site assessment.

What areas does Alternate Energy Inc. serve?

Alternate Energy Inc. is based in Honolulu and serves within a 60 km radius. Check the Service Areas section above for a complete list of locations.

What certifications does Alternate Energy Inc. hold?

Alternate Energy Inc. holds the following certifications: BBB A+ Rated, BBB Accredited. These certifications ensure compliance with industry standards and local regulations.

What warranty does Alternate Energy Inc. offer?

Alternate Energy Inc. offers 25-year panel warranty, 10-year installation workmanship warranty. Specific terms may vary by product and project.

How long does installation take?

Most residential solar installations are completed within 1-3 days after permits are approved. The full timeline from consultation to activation typically ranges from 4-12 weeks depending on local permitting and utility interconnection processes.

Does Alternate Energy Inc. handle permits and paperwork?

Yes, most solar installers including Alternate Energy Inc. handle all necessary permits, utility interconnection applications, and incentive paperwork as part of their service. Confirm specific details during your consultation.