21 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Erwin: Sundance Power Systems Inc, CR Score 58/100; 4.9★ from 172 Google reviews.
Best for emergencies (open 24/7): Atlantic Electric and Solar, posts 24/7 hours; ranked #10 of 21.
Most-reviewed: Sugar Hollow Solar, 178 Google reviews at 4.8★, the most of 21 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
21 Erwin solar installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 7 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.8★ across 21 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sundance Power Systems Inc | 58 | 4.9★ (172) | Asheville, 29 mi away | — | Overall |
| 2 | CustomSmart Homes & Solar | 54 | 4.8★ (33) | Kingsport, 22 mi away | — | — |
| 3 | Appalachian Solar Services | 54 | 5.0★ (9) | Asheville, 28 mi away | Sat · Sun | — |
| 4 | Sugar Hollow Solar | 52 | 4.8★ (178) | Asheville, 39 mi away | — | Most reviews |
| 5 | Rocky Broad Solar LLC | 51 | 5.0★ (10) | Black Mountain, 35 mi away | Sat · Evenings | — |
| 6 | Smart Solar | 51 | 5.0★ (10) | Asheville, 39 mi away | — | — |
| 7 | Johnson City Water Heater Services | 51 | 5.0★ (11) | Johnson City, 13 mi away | Sat · Sun · Evenings | — |
| 8 | Capture Solar, LLC | 49 | 1.0★ (3) | Greeneville, 9 mi away | — | — |
| 9 | Future Smart Energy | 49 | 5.0★ (3) | Bristol, 31 mi away | Sat | — |
| 10 | Atlantic Electric and Solar | 49 | 4.7★ (26) | Marion, 40 mi away | 24/7 | Emergencies |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 172 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kingsport, 22 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 28 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 39 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 178 Google reviews, the most in Erwin.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Black Mountain, 35 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 39 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Johnson City, 13 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greeneville, 9 mi away
Ranked #8 because of its Google rating and trade focus: 1.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bristol, 31 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marion, 40 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Electrician”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kingsport, 29 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Elizabethton, 23 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Morristown, 39 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Elizabethton, 16 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 12 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 39 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 39 mi away
Ranked #16 because of its Google rating and trade focus: 3.0★ from 54 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 39 mi away
Ranked #17 because of its Google rating and review volume: 4.5★ from 20 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 40 mi away
Ranked #18 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Asheville, 28 mi away
Ranked #19 because of its Google rating and trade focus: 2.3★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boone, 40 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 18 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greeneville, 21 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Remodeler”.
Based on 8 of 10 factors; credentials and recency not yet collected.
12 more solar installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Blue Ridge Energy Works, LLC | 5.0★ (2) | 33 mi |
| BRIGHT POWER LLC | 33 mi | |
| Cypress Creek Renewables | 5.0★ (2) | 39 mi |
| Design 1 Group LLC | 31 mi | |
| Erwin Aluminum & Vinyl | 4.3★ (26) | In Erwin |
| High Country Energy Solutions | 5.0★ (1) | 40 mi |
| R B Webb Insulation Co | 5.0★ (4) | In Erwin |
| Rexel - Closed | 40 mi | |
| Solar Jack | 37 mi | |
| Summit Energy Group | 39 mi | |
| Thermacraft Energy Services LLC | 36 mi | |
| Whitestar Solar Energy | 39 mi |
Typical prices in USD, adjusted for Tennessee with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $23,510 | $26,600 | $28,930 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.85 East South Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 21 Erwin solar installers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Erwin data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |