We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services. More

Best 5 Solar Companies in Boulder, CO

Get matched with a top local pro
Join the 10,601 people who have received a free, no-obligation quote in the last 30 days
  1. Home
  2. Local Pros
  3. Solar
  4. CO
  5. Boulder
Written By Max Peterson|Last Updated: February 05, 2024

Boulder homeowners are fortunate to live in plentiful sunlight, both to enjoy and harness as energy. Local homeowners might consider solar to break free of high power costs from sources like coal. An experienced team can help you set up and tune a system that fulfills your energy needs without costing a fortune. On this page, we'll highlight Boulder's most reputable solar installers and share expert advice for your solar journey.

Best High-Efficiency System
4.8
  • Builds custom, high-efficiency solar systems suited to each home
  • Extensive coverage area throughout the country
  • Offers energy storage and EV charger add-ons
Most Reputable
4.4
  • Offers high-efficiency panels and storage options
  • Provides unique in-house financing options
  • Recognized as one of the most reputable solar companies
Best Solar Panel Leasing
4.4
  • Provides system monitoring
  • Offers diverse financing options for various budgets
  • Provides EV and solar battery solutions

Top Boulder Solar Companies

Independent Power Logo

Independent Power

4.5/5
Based on 99 customer reviews.

Services Offered

Financing AssistanceOff-Grid Solar SystemsPanel InstallationBattery Storage

Highlights

  • Free quotes
  • Clear pricing policy
  • Reliable customer support
1501 Lee Hill Dr Unit 24, Boulder, CO 303-443-0115 solarips.com
Green Collar Crew Logo

Green Collar Crew

4.7/5
Based on 24 customer reviews.

Services Offered

ConsultationPermit AssistancePanel Installation

Highlights

  • Informative resources
  • Free quotes
  • Reliable customer support
11001 W 120th Ave #400, Broomfield, CO 303-495-5510 greencollarcrew.com
Custom Solar Logo

Custom Solar

4.1/5
Based on 22 customer reviews.

Services Offered

Solar CarportsCleaning And MaintenancePanel InstallationBattery Storage

Highlights

  • Reliable customer support
  • Informative resources
2840 Wilderness Pl, Boulder, CO 303-859-8597 customsolar.us
Progreen Solar Logo

Progreen Solar

4.6/5
Based on 31 customer reviews.

Services Offered

Panel InstallationBattery StorageOff-Grid Solar Systems

Highlights

  • Reliable customer support
  • Clear pricing policy
  • Prompt service delivery
1030 Boston Ave, Longmont, CO 303-484-1410 progreen-solar.com

More Local Solar Companies

Photon Brothers

User Reviews: 4.6/5 

7705 W 108th Ave
Broomfield, CO 80021

Liv Solar

User Reviews: 4.4/5 

7140 W 117th Ave #C3
Broomfield, CO 80020

Columbine Roofing & Solar

User Reviews: 4.6/5 

328 Coffman St
Longmont, CO 80501

Klick Solar

User Reviews: 4.5/5 

1811 Hover St C
Longmont, CO 80501

Sopris Solar

User Reviews: 4.5/5 

6078 W 55th Ave
Arvada, CO 80002

Vanguard Solar Services

User Reviews: 4.7/5 

6145 Broadway Unit 5
Denver, CO 80216

Golden Solar

User Reviews: 4.5/5 

15601 S Golden Rd
Golden, CO 80401

Elevated Independent Energy

User Reviews: 4.5/5 

7000 Broadway STE 104
Denver, CO 80221

Roper Roofing & Solar

User Reviews: 4.5/5 

795 McIntyre St #303
Golden, CO 80401

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

Ranking Methodology

Our team used the following criteria to determine the best Boulder solar companies.

Get Your Solar Project Quote Today

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Facts about Boulder
Average Max Temp:56°F
Solar Payback Period:8.9 years
Average Daily Sunlight:60%
Homes Powered by Solar:3,854
Average Annual Energy Bill:$972
Solar Power per Capita Percentile:48.0%

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Benefits of Solar Energy

Solar energy offers multiple benefits. Let's look at a few of them.

  • Better energy independence: Solar panels can keep your home running through blackouts and emergencies, giving you additional security. You can use your solar energy anytime with optional battery backup.
  • Reduced carbon footprint: Using clean solar power means you're less dependent on fossil fuels, which emit harmful greenhouse gasses.
  • Lowered energy bills: Solar panels let you generate your own energy to power your home, minimizing your periodic electricity costs. Going off-grid can eliminate your bills completely.

What Solar Incentives Are Available to Boulder Homeowners?

Colorado agencies and electric companies offer numerous solar incentives to help cut your solar system costs. Below is a breakdown of eligible solar programs where you live.

Incentive Type: Property Tax Incentive

Website: cdola.colorado.gov

Incentive Amount:

100% exemption for renewable energy system property

Incentive Type: Sales Tax Incentive

Website: tax.colorado.gov

Incentive Amount:

100%

Incentive Type: Rebate Program

Website: energysmartcolorado.com

Incentive Amount:

Residential
PV: 50% up to $500
Solar Thermal: 50% of project costs
Commercial
50% of project costs

Incentive Type: Sales Tax Incentive

Website: bouldercolorado.gov

Incentive Amount:

~15% refund on sales and use tax for the solar installation

Incentive Type: Rebate Program

Website: energysmartcolorado.com

Incentive Amount:

PV: 25% of cost
Solar Water Heat: $25% of cost
Solar Thermal Tune-up: 25% of project cost
Micro-hydro and Geothermal: 25% of cost

Incentive Type: Property Tax Incentive

Website: cdola.colorado.gov

Incentive Amount:

100% exemption for the percentage of electricity capacity (AC) of a community solar garden attributed to residential or governmental subscribers or organizations that are already exempt from property taxes

Incentive Type: Performance-Based Incentive

Website: xcelenergy.com

Incentive Amount:

Systems 0.5 kW - 25 kW: $0.005/kWh
Medium-sized Systems 25.1-500 kW: $0.0375/kWh
Large Systems (>500kW): Determined through competitive bid

Incentive Type: Sales Tax Incentive

Incentive Amount:

Varies (local option)

Incentive Type: Property Tax Incentive

Incentive Amount:

Varies (local option)

Incentive Type: Rebate Program

Website: efficiencyworks.org

Incentive Amount:

Air Sealing: $300-$500
Insulation: Up to $1,815
Duct Sealing: $200 (gas-heated homes only)
Window Replacement: Up to $1,000
Air Handler Blower Motor: $150
Whole House Mechanical Ventilation: 20% of cost
Heat Pumps: $500
Replacement Furnace: $300-$500 (gas-heated homes only)
Ductless Mini-Split: $250/head
Replacement Gas Boiler: $300 (gas-heated homes only)
Replacement Water Heater: $100-$500
AC System: $150-$500
Whole House Fan: $275
Evaporative Cooler: $500

Incentive Type: Rebate Program

Website: unitedpower.com

Incentive Amount:

CFL Recycling: FREE
New Energy Star Refrigerator/Freezer: $30
Refrigerator/Freezer Recycling: $75
New Energy Star Clothes Washer: $40
New Energy Star Dishwasher: $20
New Electric Thermal Storage Units (on automated Time-of-Day control panel): $4-$16/kW
New Electric Thermal Slab (on automated Time-of-Day control panel): $4-12/kW
Water Heaters: $20-$400
Terminal Unit for Heat Pump A/C Units: $75-$85/Unit
Heat Pumps: $100-$450/ton
Geothermal Heat Pumps: $200-$500/ton

Air Conditioners: $100-$150

Incentive Type: Loan Program

Website: xcelenergy.com

Incentive Amount:

Up to $50,000

Incentive Type: Rebate Program

Website: xcelenergy.com

Incentive Amount:

Refrigerator Recycling: varies, contact utility for details
Natural Gas Furnace: $300
EC Motor in New or Existing Furnace: $100
Air Conditioning/Air Source Heat Pump: $300-$600
Mini-Split Heat Pump: $300
Water Heater: $70-$450
Evaporative Cooling: $200-$1,200
Attic Insulation: $350-$600
Wall Insulation: $350-$600
Air Sealing, bypass sealing, and weather-stripping: $175-$450
Ground Source Heat Pump: $300/ton
Smart Thermostat: $50

Incentive Type: Rebate Program

Website: xcelenergy.com

Incentive Amount:

Attic Insulation: $400-$700
Air Sealing/Bypass Sealing/Weather-Stripping: $250-$550
High Efficiency Lighting: 30% of cost
Wall Insulation: $450-$700
Evaporative Cooling System: $325-$1200
Central Air Conditioner (New): $400 - $700
Central Air Conditioner (Trade In): $550
Ground Source/Geothermal Heat Pump: $300 per ton
Electric Heat Pump Water Heater: $550
Programmable Thermostat: $25
High Efficiency Furnace: $400
Electrically Commuted Motor: $125
Tankless Water Heater: $200
Standard Tank Water Heater: $100
ENERGY STAR Refrigerator: $15
ENERGY STAR Clothes Washer: $30

Incentive Type: Loan Program

Website: colorado.gov

Incentive Amount:

$35,000

Incentive Type: Loan Program

Website: colorado.gov

Incentive Amount:

$250,000

Incentive Type: Performance-Based Incentive

Website: xcelenergy.com

Incentive Amount:

2015 Large RFP Program:
Determined through competitive bid. RFP released on March 3, 2016

Incentive Type: Loan Program

Website: energysmartcolorado.com

Incentive Amount:

$25,000

Incentive Type: Rebate Program

Website: pvrea.com

Incentive Amount:

Refrigerators/Freezers: $30
Refrigerator/Freezer Recycling: $60
Clothes Washers: $30-$40
Clothes Dryers: $30-$90
Dishwashers: $20
Standard Water Heaters: $30-$50
Heat Pump Water Heaters: $350
Heat Pump Waste Heat (geothermal): $100 plus $25 for a lifetime warranty
Geothermal Heat Pumps: $500/ton plus $200/ton 2019 bonus incentive
Ground Source Heat Pump Desuperheater: $100/unit
Air Source Heat Pumps:$300-$450/ton plus $200-$300/ton 2019 bonus incentive plus $100/unit for integrated controlled ETS backup
Terminal Air Source Heat Pumps: $85/unit
Air Conditioners: $100-$150
Residential LED Lighting: 50% of cost
Commercial Lighting: Varies, see program website
Irrigation Motors: $1.50-$8.00/hp
Variable Frequency Drives: the lesser of 50% of cost or $1,600-$6,800/unit

Incentive Type: Rebate Program

Website: EnergySmartYES.com

Incentive Amount:

25% of project cost

Incentive Type: Loan Program

Website: elevationscu.com

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

How To Choose the Best Solar Company in Boulder

The price and efficacy of solar panels often depend on the provider that installed them. Here are some important factors to bear in mind while searching for a solar provider.

Licensing and Training

While electricians and plumbers in Colorado have state-issued licenses from the Colorado Electrical Board or Colorado State Plumbing Board, the state's unique home-rule structure means counties and cities can issue solar contracting licenses if they choose. Solar installers can also pursue certifications from standards organizations and trade groups. The most respected ones in the industry come from the North American Board of Certified Energy Practitioners. Most company websites will prominently display earned credentials, but you should also ask your estimator for more information.

Cost of Solar Panels in Boulder

Different solar panel types look and perform differently. Monocrystalline panels cost more than other options, but they generate the most power. Polycrystalline panels produce less power, but start at a more budget-friendly price point. Thin-film panels work well for small projects like RVs and sheds, but they're not ideal for larger installations due to their low performance.

Additional accessories, such as battery storage and electric vehicle (EV) chargers, will raise your overall costs. However, they might make your solar system more efficient and convenient to use. Not all solar providers include these additional features, so look for a company that installs them if it's a priority for you.

If you're a resident of Boulder and want a five-kilowatt solar energy system, you could expect to pay about $19,900 for parts and installation. Find more information on specific component and panel costs in the table.

Solar Panel CostAverage Cost
Solar Monocrystalline$1,148
Solar Polycrystalline$895
Thin-Film$523
Solar Battery$735
Solar Home EV Charger$2,755

Financing Solar Energy in Boulder

Choosing the best financing solution will affect your overall solar system cost and potential savings. Common payment options include loans, cash payments, power purchase agreements, and leases. We suggest making a cash payment or using a solar loan for the best return on investment (ROI). Cash payments require a hefty sum up-front, but you’ll pay the least long-term by avoiding interest. You’ll also own your system and can apply for solar incentives to reduce your total costs. Solar loans are another good option if you don’t want to make a big initial investment. You can pay for your system in monthly installments while still benefiting from energy bill savings and solar incentives. However, you’ll pay more in total due to accruing interest. Solar leases allow you to pay a monthly fee to rent your panels, while a PPA lets you pay a variable rate based on only the energy you use. We generally don't recommend these options since you will not have ownership of your system and are disqualified from solar incentives, but they might be appropriate in specific circumstances. We recommend working with a company that offers multiple financing options. Speak with each salesperson about what's available, and get more than one estimate for the best odds of staying within your budget.

The table below lists the average payback periods for different capacities of solar systems in Boulder.

The IRS allows you to claim a 26% federal tax credit on total system costs, so long as you purchase it before 2032. Local governments and utilities might also offer their own rebates, incentives, and financing programs that could save you more money.

Solar System CapacityEstimated Payback period
1 kW1.8 years
2 kW3.6 years
5 kW8.9 years
10 kW17.8 years

Ready to Get a Quote on Your Solar Project?

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Frequently Asked Questions About Solar in Boulder

How much money could I save by going solar in Boulder?

On average, Boulder homeowners pay roughly $972 per year on power bills. Once you pay off your solar array, you could save $989.81 for every kilowatt you produce.

Is solar energy readily available in Boulder?

Yes, solar energy is readily available in Boulder. A growing number of local homes already use solar power on-site or through utility grids, and Colorado has about 7174 jobs forming its solar economy.

Will a solar PV system boost my Boulder home price?

Yes, new solar systems mean higher property values according to the National Renewable Energy Laboratory (NREL.) Homeowners could project a $20 property value increase for each dollar they save on energy. Therefore, $600 in energy savings could increase your home's value by $12,000.

How many years will an average solar system last?

Modern solar installations are built to last. The average unit is good for 25 years of service. Lower-cost panels tend to have shorter lifespans than premium models.

What upkeep do my solar panels need, and how frequently do they need it?

To preserve your solar system's efficiency, inspections and cleanings every six months are usually adequate. In dusty or dry seasons, your panels might need cleanings every one to two months. Your provider can recommend a maintenance schedule. Its team could also do the cleaning for you.

What is the average payback period for Boulder solar panels?

The average payback period for a solar loan in Boulder is 14.1 years. By paying off extra principal each month, you can shorten the payback period and own your system faster.

What are the signs I shouldn't use a particular solar company for my job?

While many online reviews are positive, even the rated solar companies might have complaints. You should know these early warning signs for the best odds of an exemplary job:
  • High-pressure sales tactics
  • Being evasive about cost, warranties, references and credentials and training
  • Inflexible options
  • Rushing through the site assessment
  • No references or testimonials

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.