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Northern Pacific Power Systems

4.6 53 reviews Solar installer in Santa Rosa, CA
  • 1 area served
  • Licensed

Overview of Northern Pacific Power Systems

Founded on the principles of quality, integrity and sustainability, Northern Pacific Power Systems began in 2009 and has emerged as one of northern California’s leading solar energy system providers. A local company—owned and operated—we’re genuinely proud to have established our reputation for high quality craftsmanship, innovative design and truly exceptional customer service. It was earned through designing and installing over four hundred local residential and commercial systems. We’ve done it with a team of committed professionals whose 40 years of experience is your guide through every phase of the process. It’s a process that includes city and county permits, financing options, rebates, incentives. And we’ll handle everything—while incorporating all the available options and choices to optimize your specific system. We are NABCEP certified designers, California Certified Electricians and California Electrical Contractors (C10), Solar Contractors (C46) and General Contractors. As an active Go Local member, we are committed to supporting our local communities.

What Northern Pacific Power Systems customers say

4.6

53 reviews

5 51 4 1
3 0
2 1
1 0

Showing 5 star reviews only. Show all

Terry Woodard

Reviewed on Jul 24, 2026

Amazing integrated service

We bought a new house and our first goal was to add solar and back up. Found No. Pacific from a Google search. From the very first call, they handled everything: system design, permits, installation, PGE activation, inspections. We moved in and Colton and Max installed our 20 panels and 2 Powerwalls the following week. Inspections were ordered, PGE notified, and everything wrapped up without one single hitch, delay, problem, or unexpected cost. All the employees were knowledgable, kind, respectful and a pleasure to have around. Could not recommend them and more highly.

Daniel Schalit

Reviewed on Jul 14, 2026

I don't normally write reviews, but NPP deserves one for their good work. From the very start they were professional, courteous, knowledgeable and communicative. Cassius, Dan M. and the rest of the crew did what they said they would do, and did it when they said they would do it. The work appears to be done well and without issues. I hire contractors routinely in my professional life and would highly recommend NPP for homeowners seeking to add a solar and battery back-up system to their home.

Andrew Walmisley

Reviewed on Jul 7, 2026

Northern Pacific is a first-rate company with a highly professional and well-trained team of senior staff and technicians. Cassius, one of the owners, who guided us through the preliminary stages of two solar installations, is warm, responsive, and impressively knowledgeable about every aspect of solar and battery technology. Installation of our second array with batteries was guided and supervised by Dan Moran, who not only did a superb job getting the system in before Federal tax subsidies ended on December 31, but has continued to be a resource for this extremely un-tech-savvy family. He is always willing to help and walk the extra mile in assisting us in navigating the complexities of the system. This invaluable hands-on approach to customer service makes Northern Pacific way ahead in the game in this industry. Wherever we go we talk up the company! An easy 5 star rating!

Pete McCrorie

Reviewed on Jul 1, 2026

We contacted NPP after deciding to get a solar system and batteries for our home. Our project manager, Dan Moran, was so easy to work with. He helped us better understand our options, and gave us confidence that NPP was committed to give us a great solution. NPP installed 14 panels and 2 Tesla batteries for us, and we loved that fact that they routed the conduit inside the attic so that the installation looked very clean. Post install, Dan has always been available to answer any questions that we had, and we would definitely recommend him as someone you can trust to look after you.

Alan M

Reviewed on Apr 29, 2026

Overall Great Experience

I chose Northern Pacific Power for our solar installation after receiving a total of five bids from other providers, including Tesla. The service throughout the entire process was excellent. Graham, Devin, and the entire team provided very realistic timelines and expectations, all which were met. We are very happy that we chose NPP!

Alain Etch

Reviewed on Apr 2, 2026

Great experience - start to finish

We have had a great experience with Northern Pacific Power Systems and our solar panel/system install. Sebastian helped answer all of the many questions we had up front and was very knowledgeable. Alex has been great as the project manager, making sure everything moved very efficiently from start to finish. The whole team and crew were professional and friendly. We highly recommend this team for your solar panel install.

Cee Scott Brown

Reviewed on Mar 27, 2026

Solar Installation

To all the folks at Northern Pacific Power Company (Raymundo, Dan, Jonathan, Scotty, Alexander and Christian, as well as Graham, Devin, Mark and Caitlin): What a seamless, effortless, smooth and timely installation you all provided us. We went from thinking about getting solar to receiving PGE permission to officially turn on the system within one month’s time! We could not be more pleased. Thank you all for such professional, user-friendly work and interface. We will definitely recommend Northern Pacific Power Company to friends and colleagues. The fact that we are saving money is good, but that we are also helping reduce our carbon footprint to help save the planet….it’s a win/win. Thanks again to you all. Cee Brown John Bjornen

M Stephens

Reviewed on Mar 21, 2026

Stellar Service – Highly Recommended for Solar & Maintenance We originally used Northern Pacific Power Systems to install solar panels and a battery back-up several years ago and have loved our system ever since. The company provides stellar service from beginning to end - initial consultations, installation, ongoing support, and in our case recently, removal and reinstallation. A special call out to Caitlyn, in the office, who went out of her way to work with my roofing crew and schedule her team right before they started the roofing project and right after they finished. She even coordinated conversations with the roofing supervisor and solar specialists to make sure everyone was on the same page. Caitlyn was understanding and helped me with getting permit adjustments resolved quickly. James and Francisco, the on-site crew, did a fantastic job removing the solar panels for our roofer and reinstalling them. They were respectful, knowledgeable and very accommodating. They helped me figure out a safe place to store the panels during construction and made sure everything was up and running after reinstallation. James and Francisco were careful of the new roof and even worked closely with my roofer to ensure that both the solar and roof warranty were maintained. I was so impressed with their work ethic, and highly recommend Northern Pacific Power Systems.

Dave Fiano

Reviewed on Mar 14, 2026

Everyone at NPP was a pleasure to work with. Dan Moran any his crew made the process seamless, and enjoyable as well. They accommodated all my requests and questions and Dan made himself readily available for follow up service needs. Also great to know they continue to monitor the system after installation. Of my 4 neighbors who have solar, 3 of them had moderate to major issues. Also the 30% off price for 2026 gave me the opportunity to upgrade to a second battery.

Caitlin

Reviewed on Jan 5, 2026

Fantastic from start to finish

Northern Pacific Power did a fantastic job installing our new solar system. From the first contact to the final inspection Devin S, was always available for calls and meetings, making the process seamless. the team of Jake H, Jake O, Max, Adrian ,and Christian did a fantastic job as well. We would highly recommend them.

Tim McCarthy

Reviewed on Nov 20, 2025

Most excellent

From my first interaction through the entire process they were professional and knoledgable and customer focused. Alex and Causus and their teams delivered on time and on budget and made the process so easy. Highly reccomend them.

Kate W.

Reviewed on Sep 12, 2025

Outstanding experience!

We cannot say enough good things about our experience with Northern Pacific Power Systems (NPPS)! Like most homeowners we tried to do our due diligence when we embarked on this project, and we ended up meeting with three companies. Two of those were standouts, but what ultimately tipped the scale for us was our initial meeting with Tory, our energy advisor with NPPS. He was detailed and thorough and presented not only a system that met all of our energy requirements but it was also aesthetically the most appropriate for our home! I had literally asked the prior two companies to put all of our panels on our back roof and was told that it was NOT possible as we would sacrifice too much production. Well, enter Tory who opens up his design proposal and had designed exactly what I wanted and had all the science and math to back it up! We were sold and our interaction from there forward was spectacular- the process is complicated and takes a few months but their team has it mapped out to the tiniest details from day one. Every once in awhile we’d think, “oh when does x or y happen?” And we could open up the very first email they sent and find the timeline and explantation. And if we needed information, they answered the phone and are just the nicest, most helpful people, including Adaggio and Caitlin. Our installation was coordinated by Devin, who made it simply seamless. His crew of installers, led by their electrician Colton as well as Zachary and Juan, were so efficient and skilled, we barely even knew they were here! Overall, it was a super busy time for NPPS and we felt like we were their only clients in the world. That’s tough to do even in the best of times and our system is incredible-we are very happy customers!

D. Lezzeni

Reviewed on Jul 3, 2025

They are an amazing company!

From the first meeting to permits and drawings, to installation and completion, every step was done perfectly! No delays, no "oops", just smooth high-quality work, done on time and cleanup was amazing too! Thanks to Graham, Devin, Caitlin, Ray and Alex! Great products, prices and super nice people.

JOHN HEINDL

Reviewed on Jun 6, 2025

SOLAR INSTALLATION

From start to finish, our solar project was seamless. From Eric Theriot (Solar Specialist) to Eric Hammond (Lead electrician) to Alex Stanley (Project Manager) to the installers. The professionalism and service were top notch. i would highly recommend Northern Pacific Power Systems to anyone. They are a local company with high standards. Just wanted to also say thank you for the great job. JOHN AND MARY HEINDL

Teri S.

Reviewed on Apr 30, 2023

Great Solar Company!

Northern Pacific Power Systems completed our solar system this past February. From start to finish, this company is a class act! We have a very challenging 2-story home with a 12/12 pitch metal roof. We’d contacted a couple other solar companies, but when they heard steep metal roof, they didn’t even come out to look. But Northern Pacific Power Systems was up for the task. They did a great job and we are thrilled with our system. Great crew, both on the job site and in the office. Their goal was to make sure we were happy and they succeeded! We highly recommend them for your solar installation!

Mike & Tina

Reviewed on Apr 21, 2023

Solar/battery installation by Northern Pacific

We highly recommend Northern Pacific Power Systems for solar panels and backup batteries. Sales process was more of a technical session than "sales-y". Excellent project management and communication. Efficient, knowledgeable, and friendly workers who did excellent work. Assistance with obtaining NEM 2.0 and SGIP rebate was a bonus. Using DocuSign for paperwork was much appreciated. Milestone billing was great and every invoice came with a total updated project statement. Installation was faster than we expected - 4 months total from first sales visit during a very busy time for solar companies.

Gary and Nancy Caldwell

Reviewed on Oct 27, 2021

Exceptional Service

We were pleased from the first contact to the most recent when we were called to see how it all was working. Everything was explained and questions answered so we were comfortable moving forward. We purchased solar panels plus batteries because we qualified for the SGIP rebate from PG&E plus the federal tax credit so they made a huge difference in the cost to us. Once installed, we had good explanations and help figuring it all out. Plus all the people with whom we dealt were delightful people!

Mary Lou Hicks

Reviewed on Oct 8, 2021

Fabulous company to work with

I am totally thrilled with NPPS from the very beginning to the completion of the installation of both the panels and the wall battery. Cassius and all the installers have been professional and courteous, explaining the process all along the way. My PG&E bill is now absolutely amazingly insignificant since I have not had to pay for any electricity. I highly recommend Northern Pacific Power to anyone who wants to protect our environment and decrease their carbon emissions.

Dave B

Reviewed on Sep 14, 2021

A+ Experience!

I chose Northern Pacific based on the reviews I read on various websites, and I am extremely pleased with my experience working with them. My key contact, Cassius, was very knowledgeable, helpful and responsive. The system he designed meets our energy use needs perfectly, and the entire planning and installation process was well coordinated and easy to understand. I would recommend this local company in a heartbeat. Thanks!

Eric H.

Reviewed on Apr 20, 2021

Straight up company

The company was professional and efficient. Design was done by satellite and zoom meetings during the pandemic, with a single onsite visit prior to the final design being submitted to the city for approval. System we purchased was a 3.4 kW output with a 10 panel array on a roof mount with a 47 degree pitch, and their bid was competitive with others (just over 15K). Many companies would not install on a roof with this slope. The install was done in 1 1/2 days with a 4 person crew, and the routing of the electrical lines was discreet and painted to match existing house colors where necessary. Overall experience with the project was excellent. Just be aware that once the building permit is approved the charges come quickly and you will need to have your banking in order.

Timothy Gee

Reviewed on Apr 10, 2021

Great Solar system Company

Great solar system installed for our irrigation pumps and accessory buildings. Cassius handled our initial inquiry with a virtual evaluation that was accurate and thorough. We had wanted to qualify for the battery rebate, but missed the cutoff and the state pretty much closed it down anyway. The installation occurred a couple months later and was seamless. Alex walked us through the system, all the inspections, and dealing with PGE. And at completion Cassius again walked us through how the system works and how we can monitor it. Professional and competent all the way through.

Em J.

Reviewed on Apr 2, 2021

Professional company throughout

Friends recommended Northern Pacific Power to us and we couldn’t be happier with our rooftop solar installation. The bid process with Cassius, the design element run by Alex and the installation by Chad and Jorge—the entire process was simple and professional. The orinal design had six panels on our highest producing roof and thirteen on the larger but less efficient roof. The designers found room for one more panel on the best roof. Better yet, the installers were able to put nine panels on the southern facing roof with ten on the eastern roof. Our product just kept improving. Finally, each of the aforementioned company representatives were pleasant and professional throughout. I recommend Northern Pacific Power without reservation. Eric J.

Curt Groninga

Reviewed on Dec 26, 2020

Excellent Firm

I interviewed a number of companies when deciding upon best options available. Northern Pacific Power Systems (Cassius Camus) provided clearest data and conditions regarding solar potential for our home.

jdavies

Reviewed on Nov 16, 2020

Solar Installation

Our experience with Northern Pacific Power was wonderful. Cassius was a pleasure to work with. His knowledge and expertise, along with keeping us informed every step of the way, was more than helpful. The other team members were equally informative and professional. We would highly recommend this company for all of your solar needs.

bill

Reviewed on Sep 26, 2020

see my comments

The results of my interaction with this company installing solar panels on my house were very positive. Courtesy, promptness, efficiency and all around competence were always in attendance.

Satisfied

Reviewed on Apr 13, 2020

Conscientious and Thoroughly Professional

My wife and I had made a plan to rely less on the LP gas central heating for our home and shift more to the electric heating system we originally used but which long ago had become too expensive to operate. Working with Alan, Cassius, Adagio and Shelby at Northern, we added significantly to our existing number of solar panels to complete a system that handles both our heating and lighting needs and charges our electric car. In just a quick glance at the online monitoring of our new solar system I can tell already that we're going to be able to charge a second car when our current hybrid needs replacement. I cannot speak too highly of Northern Pacific and its staff. At no time did we receive anything from them but the very best products, service and

BA Judson

Reviewed on Apr 9, 2020

Great Company

Great experience from start to finish! The presentation and plan was professional, thorough, and easy to understand, which made decisions on design, type of panel, and number of panels easy to make. The install was completed in a day and a half, and the follow up to get it setup with PG&E was seamless. I love my sleek panels!

Petaluma Proud

Reviewed on Jan 24, 2020

Excellent Installation and Customer Service

The Northern Pacific Power Systems team made the entire solar installation process a great experience. From the initial meeting and calling references I learned how this team works with a focus on selecting and installing the right solar system for us. I have and will continue to highly recommend Northern Pacific Power Systems as the team kept me informed all along the way and followed through. Great work !

Lesley

Reviewed on Oct 24, 2019

The Best!

Wonderful experience with a Northern Pacific Power from the salesman Cassius to the installer Raymundo. Also Shelby was also on top of everything. Thank you all

B.G.

Reviewed on Jul 7, 2019

Patient, respectful & professional

I am ecstatically happy with our solar purchase from Northern Pacific Power Systems! From the beginning with Cassius' patience and knowledge to answer all my thousand questions, to Addagio helping complete the process & his struggle with PG&E, to get the computer work and accounts correct. I never once had to worry that these guys were not going to deliver the service & product they promised. It was one large fresh breath during this daunting rebuilding process. Thank you Cassius, Addagio & the whole NPPS Team!!

About Northern Pacific Power Systems

53
Customer reviews
4.6
Average rating
1
Area served

What Northern Pacific Power Systems does

Services

  • Installation

Licenses

  • NPPS License: CA#939082

Reported by the company. SolarReviews has not independently verified these.

Where Northern Pacific Power Systems works

  • California

Where to find Northern Pacific Power Systems

Head office

5600 Skylane Blvd Ste 104, Santa Rosa CA, 95403

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Northern Pacific Power Systems

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