19 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harwich: My Generation Energy, CR Score 58/100; 5.0★ from 122 Google reviews.
Best for emergencies (open 24/7): Premier Energy Solutions Inc., posts 24/7 hours; ranked #7 of 19.
Most-reviewed: Premier Energy Solutions Inc., 663 Google reviews at 5.0★, the most of 19 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Harwich solar installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 8 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 5.0★ across 19 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | My Generation Energy | 58 | 5.0★ (122) | Hyannis, 12 mi away | — | Overall |
| 2 | Cape Cod Solar Guys | 58 | 5.0★ (16) | Hyannis, 12 mi away | Sat · Sun · Evenings | — |
| 3 | Cotuit Solar LLC | 58 | 5.0★ (178) | Mashpee, 20 mi away | — | — |
| 4 | E2 Solar | 57 | 4.9★ (45) | Barnstable, 3 mi away | — | — |
| 5 | Solar Rising | 57 | 5.0★ (127) | Mashpee, 21 mi away | — | — |
| 6 | Trinity Solar | 57 | 4.5★ (457) | Acushnet, 35 mi away | Sat · Evenings | — |
| 7 | Premier Energy Solutions Inc. | 56 | 5.0★ (663) | Middleborough, 39 mi away | 24/7 | Emergencies, Most reviews |
| 8 | SunWind LLC | 56 | 5.0★ (8) | Barnstable, 7 mi away | Sat | — |
| 9 | Portside Renewables LLC. | 54 | 5.0★ (39) | Mattapoisett, 38 mi away | — | — |
| 10 | ACK Smart Solar Energy | 53 | 5.0★ (17) | Nantucket, 28 mi away | Sat | — |
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: 5.0★ from 122 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hyannis, 12 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mashpee, 20 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 178 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barnstable, 3 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mashpee, 21 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acushnet, 35 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 457 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middleborough, 39 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 663 Google reviews, the most in Harwich.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barnstable, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mattapoisett, 38 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Nantucket, 28 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barnstable, 20 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marstons Mills, 21 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plymouth, 36 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ 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 Barnstable, 4 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Falmouth, 29 mi away
Ranked #15 because of its Google rating and trade focus: 4.4★ 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 Hyannis, 11 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Gutter cleaning service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Berkley, 37 mi away
Ranked #17 because of its Google rating and trade focus: 3.0★ 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 Barnstable, 17 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marstons Mills, 21 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Electrician”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for Massachusetts with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $28,990 | $32,790 | $35,670 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.05 New England factor (2025 Cost vs. Value Report) | October 2026 |
We scored 19 Harwich 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 Harwich 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 |