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Solar Optimum - Profile & Reviews

At Solar Optimum, our energy experts never take the satisfaction of our customers for granted. That’s just one of the many reasons why we’re dedicated to an unwavering philosophy making our customers our top priority when it comes to solar, battery storage and roofing.


466 reviews

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  • "Impressed at the Starting-Gate"

    Reviewed Aug 01, 2021

    First in a Series:

    I am writing today, having completed stage-1 - research, viewing multiple quotes, and final selection of Solar Optimum to manage our conversion to solar power.

    To start the process, Energy Sage helped us by offering valuable resources and links to public, private, and other sources of information. As a nonprofit, Energy Sage provides a unique environment of serving as a guide in obtaining quotes with no sales pressure or profit motives.

    So, we really are just at the beginning. However, I have been impressed with Solar Optimum through the difficult tasks of defining goals and the path to installing a system that will work best for us. So I wanted to document how we reached this important stage.

    The primary impetus to write a review for Solar Optimum at this early stage is due to the extraordinary help and support we received from Sean Sprague at Solar Optimum.

    I especially appreciate Sean's working with me on all the facets of going solar and producing multiple technical and financial scenarios. I have a degree in Applied Environmental Sciences, so finding a way to get solar has been internally compelling.

    As a scientist, I know how aggravating the many questions I ask can be. Yet, throughout this period of several weeks, Sean paid astute attention to detail,
    with professionalism, an affable sense of humor, and an impressive approach to supporting our decision-making. There has not been a single moment of sales pressure nor even a hint of frustration. And Sean offered an always-transparent manner in presenting many different options and points for careful consideration.

    In addition, Sean's handling of discussions about the diverse technical possibilities and finances has been informative, comfortable, assuring, and supported by an impressive array of examples and data, especially compared to others we spoke with through the decision process.

    Now, we are ready to let the work begin! We are very much looking forward to working with Solar Optimum through the implementation phases, confident that we can work together with a professional partner to expedite every step of the way.

    One other point, the other staff at Solar Optimum also have been amazingly attentive in handling the many calls back and forth - professional, pleasant, listening carefully, and sure to follow up in a much-appreciated, timely manner.

    Thanks to Solar Optimum for the great help in getting to the starting gate. More to follow as we proceed.

  • "Responsive to feedback"

    "Responsive to feedback"

    Reviewed Jul 08, 2021
    Updated Jul 23, 2021

    I initially had a poor experience with excessive marketing messages in Energysage (I am deleting it now because it is no longer relevant), but after leaving a negative review I was very surprised to receive a direct phone call from Solar Optimum's VP of Marketing to understand better what happened, and to apologize for the issues. I definitely appreciated his concern to reach out personally, and to assure me that the issue had been resolved on their end. I was impressed at, and appreciative of, the response -- thank you, Rainier.

  • "Almost effortless"

    Reviewed Jul 09, 2021

    This company was great, they took care of everything and all I had to do was sign a few forms. They installed the system for our small San Diego home last year, during the COVID lockdown. I was concerned but everything went smoothly and we essentially just pay SDG&E a small amount for gas each month. I got a small hot tub and we run it all the time, but it costs us pretty much nothing. I plan to contact Optimum about possibly adding a battery, since there are already talks of low-E days and I would not be surprised if we had some blackouts during heat waves this summer. The state of CA is offering generous subsidies for purchasing batteries, so it's worth investigating. I highly recommend this company.

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For over a decade, Solar Optimum continues to be the leader in supplying solar energy systems, back-up battery storage and roofing for homeowners and businesses in California. Our team is made up of professionals that aim to protect the environment with the latest technologies as well as offer immediate and long-term savings to the consumer.

* Since 2008, Solar Optimum has led the energy revolution across California
* Our solar systems deliver at 108% over production
* Ranked as an elite installer in California and in the U.S. by Solar Power World
* Top rated 5-Star Consumer Reviews across multiple review sites
* Ranked in the top 2 in the U.S. by
* 8-Time Winner Best Solar Company by the LA Daily News (2020 to 2013)
* 4-Time Angie's List Super Service Winner
* A+ Rating by the Better Business Bureau
* 95% First-Time Inspection Approval Rating

* Panasonic Certified Elite Installer
* REC Solar Certified Installer
* Enphase Certified Platinum Installer
* Tesla Energy Powerwall Certified Installer
* Enphase Battery Storage Platinum Installer
* Unirac Certified Platinum Installer
* GAF Master Elite Roof Installer

* UNMATCHED 25-YEAR WARRANTY on Panels, Inverters, Workmanship, Roof, Racking and Performance Guarantee

* PRICE MATCH GUARANTEE-- We'll beat or match the solar system price on ANY competitor quote

  • Installation
  • Energy Auditing
  • Construction
  • Roofing
  • Electrical Contracting
  • Community Solar
  • Energy Efficiency
  • Solar PV
  • Energy Storage
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Get a custom solar estimate for your home

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Try Solar Calculator



Solar Optimum Headquarters

614 W. Colorado Street
Glendale, CA
91204 United States

Local Offices (9)

  • 1500 Palma Drive, 2nd Floor
    Ventura, CA 93003
  • 550 West B Street, 4th Floor
    San Diego, CA 92101
  • 4199 Flat Rock Drive, Bldg 100
    Riverside, CA 92505
  • 28202 Cabot Road, Suite 300
    Laguna Niguel, CA 92677
  • 1430 Truxton Ave, 5th Floor
    Bakersfield, CA 93301
  • 500 La Terraza Blvd, Suite 150
    Escondido, CA 92025
  • 77711 Flora Road, Suite 329
    Palm Desert, CA 92211
  • 473 E. Carnegie Drive, Suite 200
    San Bernardino, CA 92408
  • 6012 Egret Ct.
    Benicia, CA 94510
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Workmanship Warranty

Comprehensive, industry-leading warranties: 25-years on Solar Panels, 25-years on Inverters, 25-years on Workmanship, 25-years on Racking and Mounting, 25-years on Roofing and 25-years on Performance Guarantee. 10 Year Warranty on Battery Storage.


* Panasonic Certified Elite Installer
* REC Solar Certified Installer
* Enphase Certified Platinum Installer
* Tesla Energy Powerwall Certified Installer
* Unirac Certified Platinum Installer
* GAF Master Elite Roof Installer


CSLB Lic #972228


$5,000,000 Aggregate

States served by Solar Optimum

  • California CA

Languages spoken by Solar Optimum

Armenian, English, Persian, Spanish