8 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Red Wing: iSolar, CR Score 84/100; 4.9★ from 84 Google reviews; open Saturdays until 1 PM.
Best for emergencies (open 24/7): Farmington Solar Farm, posts 24/7 hours; ranked #3 of 8.
Most-reviewed: Solaris Companies - Roofing, 94 Google reviews at 5.0★, the most of 8 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Red Wing solar installers are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 5 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 5.0★ across 8 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | iSolar | 84 | 4.9★ (84) | Bloomington, 30 mi away | Sat | Overall |
| 2 | Solaris Companies - Roofing | 79 | 5.0★ (94) | Burnsville, 39 mi away | Sat | Most reviews |
| 3 | Farmington Solar Farm | 78 | 5.0★ (4) | Farmington, 29 mi away | 24/7 | Emergencies |
| 4 | Solar Connection | 77 | 4.7★ (64) | Rochester, 33 mi away | — | — |
| 5 | Solar Energy Insulation Pros | 77 | 5.0★ (4) | Farmington, 31 mi away | 24/7 | — |
| 6 | Full Service Battery Inc | 75 | 4.6★ (76) | Farmington, 30 mi away | Sat | — |
| 7 | St. Paul Solar | 72 | 5.0★ (4) | Saint Louis Park, 25 mi away | — | — |
| 8 | Knobelsdorff | 64 | 4.2★ (5) | Eagan, 36 mi away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 84 Google reviews, listed on Google as “Solar energy company”.
Based in Burnsville, 39 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 94 Google reviews, the most Google reviews on this list (94).
Based in Farmington, 29 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based in Rochester, 33 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 64 Google reviews, listed on Google as “Solar energy system service”.
Based in Farmington, 31 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based in Farmington, 30 mi away
Ranked #6 because of its Google rating and review volume: 4.6★ from 76 Google reviews, 76 Google reviews.
Based in Saint Louis Park, 25 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based in Eagan, 36 mi away
Ranked #8 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Electrician”.
Typical prices in USD, adjusted for Minnesota with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $26,570 | $30,060 | $32,700 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.97 West North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 8 Red Wing solar installers on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Red Wing data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |