9 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Fortuna: Six Rivers Solar, CR Score 80/100; 4.6★ from 67 Google reviews.
Best for emergencies (open 24/7): Humboldt Exterior Cleaning, posts 24/7 hours; ranked #2 of 9.
Most-reviewed: Greenwired - Solar and HVAC Company, 78 Google reviews at 4.9★, the most of 9 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Fortuna solar installers are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.9★ across 9 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Six Rivers Solar | 80 | 4.6★ (67) | Eureka, 14 mi away | — | Overall |
| 2 | Humboldt Exterior Cleaning | 79 | 5.0★ (6) | Eureka, 12 mi away | 24/7 | Emergencies |
| 3 | Solar Projects Unlimited | 79 | 5.0★ (3) | Arcata, 19 mi away | — | — |
| 4 | Atlas Power Alliance | 78 | 4.9★ (7) | Arcata, 22 mi away | Sat · Evenings | — |
| 5 | Greenwired - Solar and HVAC Company | 77 | 4.9★ (78) | Arcata, 21 mi away | — | Most reviews |
| 6 | Scurfield Electric Heating & Solar | 76 | 4.7★ (60) | Arcata, 18 mi away | — | — |
| 7 | Sunbolt Solar | 73 | 5.0★ (6) | McKinleyville, 26 mi away | — | — |
| 8 | Alchemy Construction | 69 | 4.7★ (12) | Arcata, 18 mi away | — | — |
| 9 | HAVEN-ELECTRIC INC | 66 | 5.0★ (5) | Arcata, 22 mi away | Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.6★ from 67 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eureka, 12 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arcata, 19 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy system service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Arcata, 22 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arcata, 21 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 78 Google reviews, the most Google reviews on this list (78).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arcata, 18 mi away
Ranked #6 because of its Google rating and review volume: 4.7★ from 60 Google reviews, 60 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McKinleyville, 26 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arcata, 18 mi away
Ranked #8 because of its Google rating and review volume: 4.7★ from 12 Google reviews, 12 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arcata, 22 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $29,770 | $33,680 | $36,640 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 9 Fortuna 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 Fortuna 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 |