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Northern Pacific Power Systems

Solar energy equipment supplier · Santa Rosa, CA · reviewed since 2014

How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 64%93+59.1Reliability 28%89+25.1Replies to reviews 8%65+5.4Experts Score= 90Not enough data for value; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.90SCORE
AGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#45 of 80 solar servicesPosition by Experts Score among all companies we track in this category. · better than 44%
4.9 ★★★★★ 184 Google reviews · 23 photos
98%five-star reviews
4.94★last 12 monthsAverage stars on reviews from the last 12 months only.
1.3%1–2★ in 2 yearsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
20%reviews answered by the owner
Oct 2026latest review

Northern Pacific Power Systems at a glance

Customers report that Northern Pacific Power Systems handles solar and battery installations with professional project management, consistent communication, and punctual crews. Reviewers frequently cite the team's ability to navigate permits, inspections, and utility coordination as a key benefit. However, low-star reviews indicate a recurring criticism regarding the sales process, specifically noting that pricing changes occurred after initial quotes and that customer concerns were sometimes dismissed by leadership.

  • Google rating: 4.9 out of 5 from 184 reviews (98% five-star).
  • Reviews on this page: 184 Google reviews (180 with written comments, 14 with photos).
  • Owner responses: the business replied to 20% of reviews.
  • Most recent review: October 27, 2026.
  • Service: Solar Service serving Santa Rosa, California.

Data from Google, last updated October 29, 2026.

Score profile vs other solar services

Score per factor (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and satisfaction; weakest: replies to reviews.

Satisfaction93Reliability89Craft & service–Value–Momentum100Replies to reviews65Satisfaction: 93 (median 93)Reliability: 89 (median 91)Momentum: 100 (median 100)Replies to reviews: 65 (median 79)
This companySolar Services median0 = centre, 100 = best
SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Northern Pacific Power Systems: 93/100 on this factor. Category median: 93.A
93
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Northern Pacific Power Systems: 89/100 on this factor. Category median: 91.A
89
Craft & serviceCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Not enough reviews for this factor yet. Category median: 99.–
–
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 100.–
–
MomentumMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Northern Pacific Power Systems: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Northern Pacific Power Systems: 65/100 on this factor. Category median: 79.B
65

Bar = this company · dark tick = category median.

Star ratings

184 Google reviews we collected

  • 5 stars18098%
  • 4 stars11%
  • 3 stars00%
  • 2 stars11%
  • 1 star21%

Praise vs complaints

Phrases our text analysis found in 180 written reviews

  • Praise43398%
  • Complaints112%

Topic share

How often each topic comes up in the written reviews

  • Staff & attitude11225%
  • Would recommend7216%
  • Quality & results7016%
  • Speed & response6815%
  • Communication6314%
  • Price & value429%
  • Honesty & trust174%

What customers talk about

We read 180 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “Northern Pacific Power Systems (NPPS) provided professional and continuous project management.”
  • “With NPPS we had none of these issues, and we would strongly recommend NPPS to anyone thinking of installing a residential or commercial solar system.”
    “Five stars for the installation — outstanding project manager and crew: responsive, punctual, professional, top-quality work.”
  • “Northern Pacific Power Systems designed and installed the solar panels for our home in 2023 and they did a great job.”
  • “Last but not least, the two installers (Jonathan and Adrian) who always arrived on time, who also kept us informed from start to finish.”
    “Inspections were ordered, PGE notified, and everything wrapped up without one single hitch, delay, problem, or unexpected cost.”
  • “We had, at every step, open lines of communication with NPPS project manager, office, and installation staff that made the entire process run smoothly.”
  • “Great value for money with fantastic communication, service and support.”
    “…ctric heating system we originally used but which long ago had become too expensive to operate.…”
  • “Cassius spent hours with us at the initial meeting and was very candid, honest, and accessible during our decision process.”
    “2) Misleading claims.”

People customers mention

  • Moran 25 reviews
  • Cassius 17 reviews
  • Dan 15 reviews
  • Devin 12 reviews
  • Graham 9 reviews
  • Tesla 9 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Recent reviews

al9 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 days ago★★★★★

After interviewing several solar companies, we decided to hire Northern Pacific Power to install our solar system. We couldn’t be happier with our choice. Starting with the initial presentation given by Graham, to Devon the project manager that kept us updated during the entire installation of the system from start…

Bonnie1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 weeks ago★★★★★

We give Northern Pacific Power Systems All Thumbs-Up! After years of wanting solar and meeting with other providers, Graham Beverly, Dan Moran, Caitlyn Fairlee and the Northern Pacific team brought our solar and storage project to fruition. Graham patiently helped us to determine our present and future energy needs…

Kristen1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

This company exceeded my expectations by a mile. Cassius spent hours with us at the initial meeting and was very candid, honest, and accessible during our decision process. We were handed over to Dan Moran for the management of the project. He explained everything very thoroughly and was always available for any…

Eric6 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

We have used Northern Pacific power systems for two separate homes, and we could not be happier with them. Extremely responsive, local, and friendly.

David3 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Highly recommend Northern Pacific Power Systems! ​ They installed my solar panels and Tesla battery backup in just two days, and five years later, the system is still ​running flawlessly. Sebastian did an excellent job walking me through the process and making great recommendations, while Dan and the crew ensured…

Michael10 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

After the initial contact to Northern Pacific Power Systems, I was contacted by Sebastian Tejeda, who was very informative and helped me understand the benefits of working with them. I'm a general contractor and had heard horror stories about many solar companies. From first conversations with Sebastian, I could…

Photos

Customer reviews

4.9 ★★★★★ 184 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
ALLAN TILTON
Review from Google · view on Google
★★★★★

Let us begin by recommending Northern Pacific Power Systems. We could not be happier with the entire process, from initial consultation, plans, permits, installation, inspections, and approvals. Northern Pacific Power Systems (NPPS) provided professional and continuous project management. We had, at every step, open lines of communication with NPPS project manager, office, and installation staff that made the entire process run smoothly. During installation, as with many construction-related projects, there were challenges to overcome. Our installer, the guy who did the physical work, kept us informed and resolved construction-related issues in a way that minimized impacts to us. As well, during the final inspections, there were no deficiencies noted, and our project passed with flying colors. A good job all around. We had heard stories of the “BIG National Solar Companies”, the ones you see at big box home improvement stores, that promised the moon but then subcontracted out the actual work. Lack of project management seemed to be a principal complaint. With NPPS we had none of these issues, and we would strongly recommend NPPS to anyone thinking of installing a residential or commercial solar system.

al silva9 reviewsTotal number of Google reviews al has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

After interviewing several solar companies, we decided to hire Northern Pacific Power to install our solar system. We couldn’t be happier with our choice. Starting with the initial presentation given by Graham, to Devon the project manager that kept us updated during the entire installation of the system from start to finish. Last but not least, the two installers (Jonathan and Adrian) who always arrived on time, who also kept us informed from start to finish. Both were always respectful, friendly and most of all hardworking. We will definitely recommend N.P. Power to our friends and family!

Bonnie Crum1 reviewTotal number of Google reviews Bonnie has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

We give Northern Pacific Power Systems All Thumbs-Up! After years of wanting solar and meeting with other providers, Graham Beverly, Dan Moran, Caitlyn Fairlee and the Northern Pacific team brought our solar and storage project to fruition. Graham patiently helped us to determine our present and future energy needs and to make the best choice of equipment for us. Dan worked with us throughout installation, keeping us abreast of status and explaining technology; our installation took place in 2023 and he continues to support us on technical questions. Caitlyn has been the ultimate professional, personable and diversely-gifted support on schedule and the financial side. We could not be more satisfied with our experience and relationship with "NPPS" and the great people who make it! Bill and Bonnie C Santa Rosa

Jay Monahan9 reviewsTotal number of Google reviews Jay has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

2026 Update -- We wanted to add more panels this year as we weren't quite covering all of our electricity use. We had a bit of a rough start to the project as no one at Northern Pacific seemed to able able to help us. Dan Moran to the rescue! Dan realized our project had fallen through the cracks. In short order he sorted out the design, scheduled installation, coordinated building inspection, and worked with PG&E to get us connected. -------------------------- Northern Pacific Power Systems was a pleasure to work with from start to finish. They sized our solar system appropriately, handled the permitting and interface with PG&E, and creating a clean looking installation with no ugly conduits running across our roof. Although every NPPS employee we met went above and beyond, we need a special shout-out to the "J Squad" (Juan, Jonny, and James Jr.), who came and installed the panels and electrical components on their day off (!) and to Devin, the cool, calm and collected Project Manager who pulled the whole thing together.

Elizabeth Glattly1 reviewTotal number of Google reviews Elizabeth has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Northern Pacific Power Systems designed and installed the solar panels for our home in 2023 and they did a great job. We recently needed a main service panel replacement and we used Northern Pacific and they provided excellent work once again. Dan Moran was the project manager and it was a pleasure to work with him from the start to the end of the project. And we were extremely happy with Juan who was the electrician who installed the new panel. Both Dan and Juan were prompt, courteous and professional and easy to communicate with along the process. The city inspector who gave the final approval even told us "Best panel I've seen" ! And I want to give a shout out to James who Juan sent over early one morning when we had a minor issue after the project was completed. He was another great employee. It is easy for me to recommend Northern Pacific Power with the high quality work these top-notch employees provide.

Kristen Steele1 reviewTotal number of Google reviews Kristen has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

This company exceeded my expectations by a mile. Cassius spent hours with us at the initial meeting and was very candid, honest, and accessible during our decision process. We were handed over to Dan Moran for the management of the project. He explained everything very thoroughly and was always available for any questions. This felt like an intimidating process for us but he made it so easy to understand. I super appreciate this team. 10/10 recommend.

Martin Plack1 reviewTotal number of Google reviews Martin has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Northern Pacific Power Systems was great to work with. From the initial consultation with Tory to the project management with Dan, to the installation with Jake and crew, everything was smooth, professional and on schedule. Tory pointed out code limitations at the initial consolation that other companies quoting the job did not, which would have resulted in major changes at the engineering or permitting stages, and likely additional costs over their initial estimates. The installation took place at the early part of the estimated installation window and the actual installation took less time than estimated. The installation was clean and professional, no installation debris left behind. The solar system and battery back-up have been operational for about 8 months now and have worked flawlessly. We have had a couple of grid power outages, and if not for the notification in the app, we would not have known - lights, refrigerator, etc. stayed on. It is saving us hundreds of dollars each month compared to PG&E. We highly recommend NPPS and would not hesitate to use them again in the future!

Eric Cheung6 reviewsTotal number of Google reviews Eric has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

We have used Northern Pacific power systems for two separate homes, and we could not be happier with them. Extremely responsive, local, and friendly.

David Anderson3 reviewsTotal number of Google reviews David has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Highly recommend Northern Pacific Power Systems! ​ They installed my solar panels and Tesla battery backup in just two days, and five years later, the system is still ​running flawlessly. Sebastian did an excellent job walking me through the process and making great recommendations, while Dan and the crew ensured all the mechanics were in perfect working order. They were professional, answered every question, and left the work areas spotless. The quality of their craftsmanship is top-tier. The batteries and sub-panels in my garage look incredibly neat and organized—multiple other tradespeople have since commented on how ​well laid out it is. Best of all, even five years after the install, they still promptly answer any questions I have. Excellent work from start to finish!

Michael Klopka10 reviewsTotal number of Google reviews Michael has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

After the initial contact to Northern Pacific Power Systems, I was contacted by Sebastian Tejeda, who was very informative and helped me understand the benefits of working with them. I'm a general contractor and had heard horror stories about many solar companies. From first conversations with Sebastian, I could tell this company was reputable and he walked through every detail of the proposal and project. Once I signed on for this large install two years ago, Dan Moran has been my project contact and remains so through today when I had a question about the batteries and adding more storage/capacity. His follow-through on the install of the system was excellent and everything went without a hitch. Even his remote analysis of my system's performance and offering programming options provides a reassuring feeling about the company as a whole. Highly recommend them (and have).

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