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The 10 Best Solar Installers in Portland (2026)
We ranked Portland’s solar installers using a Bayesian score derived from Google reviews — the average star rating weighted by review count — and updated the list for 2026. As more homeowners and businesses in the Portland area evaluate solar for resilience and long-term energy savings, clear, locally focused review data can help narrow the field. This guide relies strictly on Google star ratings and review totals rather than price or technical claims, so use it as a starting point to find companies with consistent customer feedback before contacting installers directly.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Power Northwest
Power Northwest tops our list by combining a perfect 5.0 Google rating with the largest review total among the five-star companies, 163 reviews, which gives it the strongest Bayesian score. It’s listed as a Solar energy company and appears on NW St Helens Rd in Portland. That blend of an unblemished rating plus substantial review volume is why Power Northwest comes out on top in our 2026 ranking.
The full ranking
Sunpath Services
With 106 Google reviews and a 5.0 average, Sunpath Services is categorized as a Solar energy company based in Beaverton.
106 reviews
Energy Solutions, LLC
Energy Solutions, LLC holds a 5.0 rating on Google across 102 reviews and shows an Oregon City address (414 S Beavercreek Rd Unit 702).
102 reviews
Cascade Solar
Cascade Solar earns a 5.0 score from 84 reviewers and is listed as a Solar energy company on NE Couch St in Portland.
84 reviews
Sunward Power
Sunward Power is shown as a Solar energy company with a 5.0 Google rating based on 59 reviews and an address in Clackamas.
59 reviews
Prestige Power Systems
Prestige Power Systems carries a 5.0 average across 38 Google reviews and appears in the Solar energy company category on Google.
38 reviews
RV Solar Installs
RV Solar Installs, categorized as a Solar energy system service, has a 5.0 rating from 36 reviews and a Google address on N Bradford St in Portland.
36 reviews
Smart Solar Energy Portland Oregon
Smart Solar Energy Portland Oregon appears on Google as a Solar energy company with a perfect 5.0 from 30 reviewers.
30 reviews
Elemental Energy
Elemental Energy records a 4.9 Google rating from 141 reviews and is listed as a Solar energy company on NE 59th Pl in Portland.
141 reviews
Sunbridge Solar
Sunbridge Solar is noted as a Solar energy company with a 4.9 average across 120 reviews and a listed address in Washougal, WA.
120 reviews
Frequently asked questions
How should I choose a solar installer in Portland?
Compare several companies on objective criteria: verified reviews, licensing, insurance, local permitting experience, equipment brands, and warranty terms. Ask for references and check how long the business has been operating locally before making a decision.
What should I check during an on-site estimate?
Confirm the proposed system size, expected annual production, roof condition and any needed repairs, and which equipment models will be used. Also clarify who will handle permits, interconnection paperwork with the utility, the installation timeline, and warranty coverage.
What affects the typical cost of a residential solar installation?
Price depends on system size, roof complexity and condition, equipment choice (panels and inverters), and whether batteries or other add-ons are included. Local incentives, tax credits, and available rebates can also change your net cost, so get written quotes that itemize expected savings.
How is this Best in Portland ranking built?
The ranking uses a Bayesian-style score based on Google data: the average star rating weighted by the number of Google reviews to favor high ratings backed by substantial review counts. The list was updated for 2026 and reflects only Google star ratings and review totals, not price or technical evaluations.