Sierra Power Systems

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

• 5★ · around September 2026

  Sierra Power Systems, was top notch to work with. Gary and Gavin wanted to make sure I got into the best product at the best price point possible. Thank you so much, would work with them again any day.

• 5★ · around July 2026 · the company replied

  Gary and his crew just finished a very clean install of our Kohler generator. Super pleased with the outcome. Would not hesitate to use them again.

• 5★ · around September 2025 · the company replied

  My wife and I decided we wanted a whole house generator since in less than a year of moving in we experienced a few power outages. I got a few quotes and decided Gary presented the best solution and methods of install. 42 years in construction I knew I wanted a professionally installed and finished look. Gary far exceeded my expectations and completed the job in a timely manner. I highly recommend Gary and Sierra Power Systems.

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.

• punctuality 5
• workmanship 4
• professional staff 4
• electrical jobs 3
• reliability 3
• cleanliness 3
• timely completion 3
• communication 2
• rewiring 2
• electrical panel update 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.

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

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

• It is also reviewed on Yelp. Worth reading before you sign anything: those are a different crowd, and the complaints that reach the Better Business Bureau rarely reach Google.
• It posts on LinkedIn, Instagram, Facebook and X. A page that stopped posting years ago tells you something a listing will not.

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

• Arthur Electric4.8★ · 6
• Sierra Electric5.0★ · 6
• Burly Girl Electric4.4★ · 23
• R J Electric5.0★ · 2
• Ballou Electric5.0★ · 4

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.

• CompanyRating breakdown1–2★Newest review held

• Baker Home Energy

  4.8★ · 3,056 reviews · Escondido, CA

  4%
  Newest held review this month

• Energy Service Partners

  4.3★ · 1,845 reviews · Torrance, CA

  15%
  Newest held review this month

• SunPower®

  4.5★ · 1,572 reviews · Richmond, CA

  10%
  Newest held review 4 months old

• Semper Solaris

  4.8★ · 1,572 reviews · Lakeside, CA

  4%
  Newest held review this month

• Solar Negotiators

  4.7★ · 1,528 reviews · Fresno, CA

  5%
  Newest held review this month

• Freedom Forever

  4.1★ · 1,460 reviews · Temecula, CA

  20%
  Newest held review this month

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.

• —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.

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