Denver, Colorado has 140 solar installation companies verified on EnergyRanked, with 15,247 combined customer reviews and an average 4.4-star rating across the rated installers. This guide ranks the top installers in Denver by review depth, customer rating, and verified business credentials.
How We Rank Denver Solar Installers
EnergyRanked combines verified Google rating, total review count, contractor licensing data, and certifications (NABCEP, EnergySage, BBB) to produce a ranked list. We do not accept paid placement. Listings are sorted by a weighted score that gives credit to both rating and review depth — a 5-star company with 200 reviews ranks above a 5-star company with three reviews. Our Denver ranking is recalculated whenever a listing’s review profile updates.
Top 10 Solar Installers in Denver
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
About Solar in Denver
Denver sits in Denver County and is served primarily by Xcel Energy. Denver permits solar via the Department of Community Planning and Development; HOA approval is often required in newer subdivisions. Colorado homeowners benefit from the federal solar Investment Tax Credit (currently 30%), Colorado’s sales tax exemption on solar equipment, and a property tax exemption that prevents solar systems from increasing assessed home value. Permit and interconnection timelines in Denver typically run 2-4 weeks from contract signing to install, depending on jurisdictional load and HOA review.
Colorado averages around 5.5 peak sun hours per day, making it one of the better solar resources in the Mountain West. A typical 8 kW residential system in Denver produces roughly 11,500-12,500 kWh per year, offsetting a significant share of average household electric usage. Net metering rules vary by utility — confirm with your installer whether Xcel Energy offers full retail credit or partial credit for excess generation.
Frequently Asked Questions
How much does solar cost in Denver?
A residential solar system in Denver typically costs $2.80-$3.60 per watt before incentives. An 8 kW system runs roughly $22,000-$29,000 gross, dropping to about $15,500-$20,000 after the 30% federal tax credit. Final pricing depends on roof complexity, equipment selection, and battery storage decisions. Always compare 2-3 quotes.
How long does a solar install take in Denver?
Once you sign a contract, expect 2-4 weeks for permitting, design, and utility interconnection paperwork. The on-roof installation itself usually takes 1-3 days. Permission to operate (PTO) from Xcel Energy typically follows within 2-4 weeks of installation completion.
What incentives are available in Denver?
Denver solar customers can typically combine the federal solar tax credit (30%), Colorado’s state sales tax exemption on solar equipment, the property tax exemption for renewable energy systems, and any utility-specific rebate or net metering credit offered by Xcel Energy. Some local jurisdictions also offer expedited permitting that reduces soft costs.
How do I choose between Denver solar installers?
Look at three things: the installer’s actual review record (volume + average rating), their verified credentials (Colorado contractor license, NABCEP certification, manufacturer authorizations), and the equipment they recommend. Use EnergyRanked to compare profiles side-by-side, then request quotes from your top 2-3 candidates and compare the line-item proposals — not just the bottom-line price.