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Solar Installer GuildUnited States · independent

Advance Power

Solar energy equipment supplier · Redwood Valley, CA

What the listing shows you

3.2★

9 Google reviews

What it doesn’t

44%

rated 1–2★

typical in California, 1%

Newest review held

Feb 2026

newest held review 7 months old

Google's rating breakdown · all 9 reviews

Rated 1–2★
44%
typical in California, 1%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
0%
of the 9 reviews we hold

Its one and two star share is 43 points above the typical installer in California. Across California, 70 of the 1,529 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 9 review texts for this company, quoted below. Google publishes review ages rather than dates, so every date here is approximate.

Every company we hold in California, on one axis

none

1–5%

6–10%

11–20%

over 20%

Every company we hold in California whose Google breakdown has been read, grouped by their share of one and two star reviews. Advance Power is in the highlighted group.

What reviewers said

  • 1★ · around February 2026

    You might want to remind your employees that they represent the company when driving a company vehicle. Tailgating, honking, and flipping people off because they had to make a turn and you were slightly inconvenienced by having to slow down is not appropriate. If they weren't 3 feet away from my bumper, they probably would have seen the turn signal well beforehand.

  • 1★ · around September 2025

    Battery terminal melts..they assure you it's warranty then tell you 2 weeks later it's a loose connection..then tell you to go somewhere else..great customer experience

  • 1★ · around September 2022

    I bought a large package from advanced. Hooked it all up and asked for there electrician to check it out. They where mad. It only took an hour for them to flip the switches and they where mad. Totally unprofessional. Total rip off . Save your money and shop somewhere else

  • 5★ · around September 2025

    I’ve been coming to advanced for years, and they’re super helpful! Have bought multiple lead acid batteries and now a lithium, plug and play system. No issues so far and it’s been over a year.

  • 5★ · around September 2025

    Jr and leif are a wealth of knowledge. Always willing to help with any questions I have. They helped me build and upgrade my own system.

  • 5★ · around September 2024

    I had to post this, since once again we feel grateful to have gone with Advance Power. They installed our system approximately three years ago. The owner and staff couldn't have been more helpful, especially since I had no idea how to go about the whole process. The system has worked flawlessly ever since. Whenever the power goes out, which happens a lot, the system switches over to the battery so seamlessly, that we we're unaware that PG&E is down until we see that the neighborhood lights are out. We use a great deal of electricity, with either no bill, or an extremely tiny one. Whenever I've

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

  • systems 4
  • battery 3
  • helpful staff 3
  • switches 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.

  • 24/7 availability

    “In the winter this system runs 24/7. This system is multi functional. It…”

  • Family owned

    “original owners. We are a private, family owned business, and we are stronger than…”

  • Years in business

    “LiFePO4 energy storage systems for over 10 years. We absolutely will not have anything…”

Its website also mentions veteran owned, established and licence number, but not in a sentence we can quote cleanly.

When they say they are open

Sunday
Closed
Tuesday
9 AM to 4 PM
Wednesday
9 AM to 4 PM
Thursday
9 AM to 4 PM
Friday
9 AM to 4 PM
Saturday
10 AM to 2 PM

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 in California

1–2★3★4★5★gauge 0–20%typical here, 1%

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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