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Solar Installer GuildUnited States · independent

Alternate Energy Inc.

Solar energy company · Pearl City, HI

What the listing shows you

4.1★

56 Google reviews

What it doesn’t

21%

rated 1–2★

typical in Hawaii, 2%

Newest review held

Aug 2026

newest held review this month

Google's rating breakdown · all 56 reviews

Rated 1–2★
21%
typical in Hawaii, 2%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
84%
of the 56 reviews we hold

Its one and two star share is 19 points above the typical installer in Hawaii. Across Hawaii, 12 of the 87 installers whose breakdown Google has published carry a higher share than this one.

The percentages are Google’s own arithmetic over every review it holds, not a sample we assembled. Separately we hold 56 review texts for this company, quoted below. Google publishes review ages rather than dates, so every date here is approximate.

On the Hawaii ranking

No. 22 of the 24 rankable records in Hawaii →

Ordered by the share of one and two star reviews, weighted by how many reviews stand behind it. It ranks review records, not workmanship.

Every company we hold in Hawaii, on one axis

none

1–5%

6–10%

11–20%

over 20%

Every company we hold in Hawaii whose Google breakdown has been read, grouped by their share of one and two star reviews. Alternate Energy Inc. is in the highlighted group.

What reviewers said

  • 2★ · around June 2026 · the company replied

    I don’t normally like to leave bad reviews, but after about 6 months of trying to get someone to check PV system , I am beyond frustrated. My solar tracking app stopped reporting and then I started getting “micro inverters not functioning properly messages. “ I was instructed to buy a new Gateway, which I did for $800. Then I was told it’s probably my WiFi extenders, so I purchased new ones as well. I did several calls with tech support who is supposed to help walk you through the new Gateway setup but that didn’t work either. I work in tech and am very familiar with how to setup network devic

  • 1★ · around April 2026 · the company replied

    If you use this company, you better hope you never need them to service or stand behind their work. We keep having leaks from where they installed our solar hot water. They came out over a year ago to fix it and with this most recent round of rains, it began leaking again. After leaving numerous messages, I finally got in touch to report the leak. I was told they were slammed and would put me on the schedule and somebody would call me. That was over three weeks ago. I keep trying to find out status of a repair, but nobody ever calls me back. Terrible customer service, A simple courtesy of a ph

  • 1★ · around January 2026 · the company replied

    Had alternate energy install a hot water system 14 years ago. That’s about as long as it lasted. Had to replace the pump about 3 times which was about $300 a pump. Called for a price for a new system, the $1000 discount is making it comparable with the other quotes I got. The numbers quoted is not realistic. Basically the pump system they use overheats the tank causing premature failure. Sales guy told me I got my moneys worth. Not to mention the digital gages fall off. I have friends who had their system for 30 plus years. Want a system to last, go with another company.

  • 3★ · around August 2024 · the company replied

    Addendum: I wanted to update my review to reflect what has happened since posting. After no response from customer service since 3/19, I posted my review on 4/19. Within 2 hours, Roy contacted us to schedule a meeting to discuss what was posted. After a pretty heated discussion on 4/29, Roy agreed to send a technician to our house the next day. Within 10 minutes of arriving, Drew found that a current transformer had been installed backwards during the warranty battery replacement they performed back in December, which was causing the house to draw electricity from the grid despite adequate bat

  • 5★ · around August 2026

    Yes, Wrote a bad review on Alternate Energy last week, but since change it . Because it was a miscommunication on my part and office. We resolved the situation with the office and the technician n office team responded excellently well . I've since actually wanted some quotes from them for other work on my system. I would recommend them to anyone. Sorry and Thank U Alternate Energy

  • 5★ · around August 2026 · the company replied

    I changed my review on them because at first I thought they were going to abandon me on the dripping noise issue I was having. Alternate energy after reviewing the issue, offered a solution to me at no charge. They came out with the same person who did the initial install and installed a whole new drain pipe to alleviate the noise I was having. It's really great to see a contractor that honors their commitment to make things right.

  • 5★ · around July 2026 · the company replied

    Follow up review: They work with you. After installing 4 AC units, solar, and a Tesla battery we have had nothing but great service from them when there have been issues with our system, from setup to completion-such as when the Tesla battery failed they troubleshooted and fixed it. When the AC unit had a red light, they were prompt to send someone.

Reviewer names are not published here. Negative reviews are shown first because they are the ones a listing hides, not because they are more representative.

What reviewers keep mentioning

  • solar panels 13
  • friendly staff 13
  • warranty 7
  • sales team 6
  • friendly technicians 6
  • solar water heater 5
  • installation process 4
  • installation team 4
  • courteous staff 4
  • installers 2

Topics Google derives from the review text, with how often each appears. A frequent topic is not a good one: “price” turns up in praise and in complaints alike.

What the company says about itself

Taken from its own website. We have not checked any of it, and a sentence on a website is not evidence.

  • Family owned

    “of history, AEI is a locally owned, family-run company driven by purpose and pride.”

Its website also mentions financing, free estimate, established, years in business, licensed and licence number, but not in a sentence we can quote cleanly.

Elsewhere

  • Google also lists this company under heating and cooling.
  • It posts on X, YouTube, LinkedIn, Instagram and Facebook. A page that stopped posting years ago tells you something a listing will not.

When they say they are open

Sunday
Closed
Monday
7:30 AM to 3:30 PM
Tuesday
7:30 AM to 3:30 PM
Wednesday
7:30 AM to 3:30 PM
Thursday
7:30 AM to 3:30 PM
Friday
7:30 AM to 3:30 PM
Saturday
Closed

As Google published them when we last read the listing, not a live check. Ring before you drive anywhere.

Who Google shows alongside them

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

The ones without a link have no page here, either because Google does not categorise them as solar businesses or because we could not match the name to a listing with confidence.

Other installers around Waipahu

1–2★3★4★5★gauge 0–20%typical here, 2%

Ordered by how much we can tell you about each, which is not an order of quality. We do not know which of these is better and would not say if we did.

What we don't know

  • The date above is the newest review we hold, which is not necessarily the newest that exists — we hold a large share of Google's reviews, not all of them.
  • We do not verify licences, insurance or bonding. Nothing here has been checked against a state licensing board.
  • We cannot tell you what an installation costs, and we hold nothing about the equipment they fit.

Something wrong here? Tell us and a person will read it.

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