SunSystem Technology

    Solar Installation
    Closed8:00 AM - 5:00 PM

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    Verified by Business

    Solar system installation

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    About the Business

    SunSystem Technology (SST) is resetting the industry performance standard for PV solar O&M and asset management companies. From initial commissioning to ongoing O&M and asset management support for large-scale solar energy facilities (SEF) and residential fleets, SST ensures optimal system performance, minimal system downtime and maximized system production values. Our legacy experience reaches from Europe to both coasts of the U.S. and is matched by our knowledge of emerging technologies that positively influence system performance and enhance both our clients' systems' production capabilities and asset values for years to come.

    Location & Hours

    Map

    Rancho Cordova, CA 95742

    Serving Rancho Cordova Area

    Mon

    • 8:00 AM - 5:00 PM

    Tue

    • 8:00 AM - 5:00 PM

    Wed

    • 8:00 AM - 5:00 PM

    Closed now

    Thu

    • 8:00 AM - 5:00 PM

    Fri

    • 8:00 PM - 5:00 AM (Next day)

    Sat

    • Closed

    Sun

    • Closed

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    Overall rating

    40 reviews

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    • Photo of M S.
      M S.
      Windsor, CT
      0
      65
      0
      Aug 12, 2025

      Referred to them by RWE.. after a few Texts.. nothing more to address warranty issue. I see bad reviews all over the internet about this company. Apparently associated with NovaSource Power Services... another with bad reviews

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    • Photo of Greg H.
      Greg H.
      Escondido, CA
      0
      1
      0
      May 5, 2025

      The technician came out to install some kind of monitoring device. He left the breaker panel completely uncovered and exposed. I'm talking about the cover to the breakers and wiring. It rained for two days in this condition. I have children that could have easily been electrocuted. I have called numerous times with no response. I am going to have to hire an electrician to come out and check the system.

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    • Photo of Bonita T.
      Bonita T.
      Goodyear, AZ
      0
      1
      0
      Sep 10, 2024

      Excellent response time and efficient! Our solar company has filed chapter 11 and greatly appreciate the assistance!

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    • Photo of Guga L.
      Guga L.
      Orlando, FL
      13
      3
      0
      Mar 30, 2021

      My name is Luiz Lessa
      This is the worst company to deal with.My solar system is not working since december 2020. I call them every other day and they are still not solving my issue. They say they are sending the parts but never do. AVOID THIS COMPANY

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    • Photo of Maddy V.
      Maddy V.
      Oceanside, CA
      0
      4
      0
      May 26, 2022

      We moved into our new house in November that needed the roof replaced, so the solar panels we lease through SunSystem needed to be removed. SunSystem contracted with Novasource Power Services who took the panels off on 1/12. The panels were left leaning against the house uncovered. It took over a month to get a re-install date which was supposed to be in March and now they have canceled twice. The tentative re-install is currently for the end of June. We called numerous times to talk to someone about the issue and had many unanswered messages. Finally got to speak to Case Manager so that's something. 4 months and waiting for the job to be completed

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    • Photo of Michelle M.
      Michelle M.
      Oakdale, CA
      0
      2
      1
      Jan 25, 2022

      DO NOT have anything to do with this Co. We have had problems with our solar system since 2017 and the whole system was destroyed by wind Jan. 16, 2021. They continued charging us for something NOT working properly since 2017 and even after the system debris was removed from our property. This has cost US over 25K since the issues started. They are in breach of contract! Will not release us from our contract or remove the LIEN (50+K) on our home. (We had a verbal release from Jared Wilson on Sept. 23, 2021) but nothing else. There is major fraud here. They DO NOT answer calls, emails, written correspondence or even attorney letters. It's as thought they don't even exit. Corinthian is also involved with this company and now Nova Source Power has joined in. STAY AWAY from all 3 companies.

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    • Photo of Susan P.
      Susan P.
      El Dorado Hills, CA
      0
      20
      15
      Oct 19, 2022

      Poor or should I say NO customer service! They never answer the phone and don't return calls. Every extension you dial leads to the same voicemail to nowhere. It's like the dialing into the twilight zone. I need service for my solar panels that this company installed and I can't get a hold of anyone at the company. I don't recommend using this company otherwise you may end up on your own when it comes to follow up service...

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    • Photo of Brad A.
      Brad A.
      Los Angeles, CA
      15
      17
      0
      Jul 25, 2019

      I was referred to SunSystem Tech as the inverted for my existing solar system was displaying an error. I recently bought the house and knew nothing about how the system operated. Because the system was fully paid for when I purchased the house and no lease agreement was in place, I was worried I would have a difficult and expensive process ahead.

      Couldn't have been more wrong.

      Norma was outstanding in contacting with me, getting the details, quickly scheduling the appointment and following-up with a clear email. When Jeremy arrived as my technician he quickly went to work, taking less than 10 minutes to diagnose the issue, contact the manufacturer and confirm reorder of a new inverter which was under warranty. Norma was immediately in touch to talk me through what to expect and again reached out when the inverter was available for installation.

      Jeremy was back - quickly and efficiently everything was installed in under 30 minutes and the system was back up and running. He stepped me through the basic screens on the inverter and gave a layman's explanation of how everything works.

      This kind of professional, efficient, kind and helpful team isn't common and 'd strongly recommend this company to any friends of family looking for solar. I'd also give six-stars if I could. :-)

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    • Photo of Steve B.
      Steve B.
      Marlborough, MA
      32
      22
      20
      Nov 19, 2020

      I have an extended service agreement with them and never had to call them for an issue. I have been trying to contact them for weeks about an issue with my system and get nobody to call me back or email me back. After going online to find out more about this company I can see this is a common problem. If they end up getting back to me I will update this complaint but as of right now nothing at all.

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    • Photo of Bob G.
      Bob G.
      Murfreesboro, TN
      52
      7
      2
      Mar 15, 2021
      Updated review

      I hired another solar installer to work with the reporting company on the failed installation of my new DAS box. They determined SST never connected the new DAS box to power and the Internet. I have pictures and documentation describing the incorrect wiring work performed by SST. It clearly shows SST wired the DAS box incorrectly. It had nothing to do with router firewall problems as SST claimed. SST apparently ran into some time-consuming problems, and so SST abandoned their obligation to get the system working. I had to pay another company to repair their installation.

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      Dec 1, 2020Previous review

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