8 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lethbridge: Firefly Solar, CR Score 85/100; 4.8★ from 442 Google reviews.
Most-reviewed: Energy Smart Canada Ltd., 124 Google reviews at 5.0★, the most of 8 ranked after Firefly Solar; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Lethbridge solar installers are ranked here by CR Score, from 8 published factors. The median Google rating is 5.0★ across 8 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Best for |
|---|---|---|---|---|---|
| 1 | Firefly Solar | 85 | 4.8★ (442) | Lethbridge | Overall |
| 2 | Zeno Renewables - Lethbridge | 78 | 4.7★ (25) | Lethbridge | — |
| 3 | Southern Alberta Solar Inc. | 78 | 5.0★ (11) | Lethbridge | — |
| 4 | Solar Optix Energy Services | 77 | 5.0★ (8) | Lethbridge | — |
| 5 | Energy Smart Canada Ltd. | 76 | 5.0★ (124) | Lethbridge | Most reviews |
| 6 | Solar by Kuby | 76 | 5.0★ (7) | Lethbridge | — |
| 7 | Sunbank Solar Solutions | 74 | 5.0★ (3) | Lethbridge | — |
| 8 | DH Fencing | 71 | 4.6★ (48) | Coaldale, 16 km 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 review volume: 4.8★ from 442 Google reviews, the most Google reviews on this list (442).
Based in Lethbridge
Ranked #2 because of its Google rating and trade focus: 4.7★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based in Lethbridge
Ranked #3 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based in Lethbridge
Ranked #4 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based in Lethbridge
Ranked #5 because of its Google rating and review volume: 5.0★ from 124 Google reviews, 124 Google reviews.
Based in Lethbridge
Ranked #6 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based in Lethbridge
Ranked #7 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based in Coaldale, 16 km away
Ranked #8 because of its Google rating and review volume: 4.6★ from 48 Google reviews, 48 Google reviews.
US national ranges converted to CAD, not adjusted for Lethbridge. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | CA$38,690 | CA$43,760 | CA$47,600 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 8 Lethbridge 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 Lethbridge 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 |