2024 Solar Incentives Guide for Thornton, CO - Tax Credits & Rebates

In this guide, we'll cover the latest solar incentives and rebates available in Thornton.

You'll learn about:

  • Local & State Solar Incentives
  • Federal Tax Credits (Updated for 2024 and beyond)
  • Ways to optimize your solar investment

Solar installers are experts in maximizing your solar tax credits and rebates.
Get a free quote from one of our trusted Thornton solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 2024

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We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

What Solar Tax Credits, Incentives, and Rebates are Available in Thornton?

Property Tax Exemption for Residential Renewable Energy Equipment

Incentive Type:
Property Tax Incentive
100% exemption for renewable energy system property

Sales and Use Tax Exemption for Renewable Energy Equipment

Incentive Type:
Sales Tax Incentive

Eagle County - Energy Smart Colorado Renewable Energy Rebate Program

Incentive Type:
Rebate Program
Residential
PV: 50% up to $500
Solar Thermal: 50% of project costs
Commercial
50% of project costs

City of Boulder - Solar Sales and Use Tax Rebate

Incentive Type:
Sales Tax Incentive
~15% refund on sales and use tax for the solar installation

Roaring Fork Valley - Energy Smart Colorado Renewable Energy Rebate Program

Incentive Type:
Rebate Program
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

Property Tax Exemption for Community Solar Gardens

Incentive Type:
Property Tax Incentive
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

Xcel Energy - Solar*Rewards Program

Incentive Type:
Performance-Based Incentive
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

Local Option - Sales and Use Tax Exemption for Renewable Energy Systems

Incentive Type:
Sales Tax Incentive
Varies (local option)

Local Option - Property Tax Exemption for Renewable Energy Systems

Incentive Type:
Property Tax Incentive
Varies (local option)

Efficiency Works - Residential Energy Efficiency Rebate Program (Offered by 4 Utilities)

Incentive Type:
Rebate Program
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

United Power - Residential Energy Efficient Appliance Rebate Program

Incentive Type:
Rebate Program
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

Xcel Energy - Residential Energy Efficiency Financing

Incentive Type:
Loan Program
Up to $50,000

Xcel Energy - Residential Energy Efficiency Rebate Programs

Incentive Type:
Rebate Program
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

Xcel Energy - Home Performance with ENERGY STAR

Incentive Type:
Rebate Program
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

Residential Energy Upgrade (RENU) Loan Program

Incentive Type:
Loan Program
$35,000

Green Colorado Credit Reserve

Incentive Type:
Loan Program
$250,000

Xcel Energy - Solar*Rewards Community Program

Incentive Type:
Performance-Based Incentive
2015 Large RFP Program:
Determined through competitive bid. RFP released on March 3, 2016

Eagle, Garfield, Gunnison, Lake, and Pitkin Counties - Energy Smart Colorado Loan Program

Incentive Type:
Loan Program
$25,000

Federal Residential Renewable Energy Tax Credit

Incentive Type:
Personal Tax Credit
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.

Source: https://www.dsireusa.org/


The phrase "solar incentives" refers broadly to financial incentives that are in place to encourage the use of renewable energy by making solar panels more affordable. Incentives could include things like discounts, cash back or credit towards your monthly utility bill. Some incentives are offered by the federal government, while others are handled by the Colorado government or your utility company, county or municipality. Some broad categories of solar incentives include:

  • Rebates: Rebates, or cash back after a purchase, are normally applied before any solar tax credits are calculated. These rebates might be offered by your local utility company, by your state or by your county.
  • Tax Credits: Tax credits are dollar-for-dollar reductions (not deductions) in how much income tax you owe the government.
  • Net Metering: Don't forget to talk to your Thornton utility company about signing a net metering agreement. This allows you to get a credit towards your monthly utility bill for the value of excess energy your solar panels generate. You may receive either a dollar-for-dollar credit or a percentage of the value.
  • Tax Exemptions: Your solar panels could qualify for exemptions on both sales and property tax. Sales tax exemptions are effective at the time of purchase. Property tax exemptions let you ignore the added value of the solar panels when calculating property taxes on your home.

Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

Federal Solar Incentives

When thinking about solar incentives, federal incentives might be the first thing that comes to mind. It's likely that you've heard of the Federal Solar Investment Tax Credit, or ITC. This incentive is a tax credit that reduces your taxes by a predetermined percentage of the money you spend installing solar panels.

The ITC originally covered 30% of the total cost of solar system installation, although it has fluctuated slightly over time between 26-30%. The percentage you qualify for will depend on when your solar system was installed. The cost of installation includes the panels themselves as well as the cost of accessories, labor and equipment. There is no maximum amount you can claim. The ITC can be applied to solar panels installed after January 1, 2006, on your primary or secondary residence. The residence must be owned by you and in the United States.

Contacting your local Thornton solar panel installer is the best way to learn more about how the ITC applies to you.

In August 2022, the Inflation Reduction Act laid out new provisions for the ITC, now called the Clean Energy Credit. Homeowners are now eligible for a credit of 30% of the total costs of solar system installation for projects started after January 1, 2022, and completed before the end of 2032. This percentage will then begin to decrease on a yearly basis until the Clean Energy Credit expires in 2035. Beginning in 2023, it will also be easier to obtain credits for energy storage systems with the new act.

More information about the new Inflation Reduction Act can be found here. The best way to learn more about how the new Clean Energy Credit might apply to you is to speak with your local Thornton solar panel company directly.

State & Local Solar Incentives

There are more than just federal solar incentives; rebates, tax credits and more may be offered at the state and local level. These incentives might be given out by the Colorado government, or by your county or municipality. Certain incentives are ongoing, while others are available for a limited time.

Next Steps for Installing Solar in Thornton

You can receive solar incentives from the federal government and the Colorado government, as well as from your local utility company. This increase in availability of solar initiatives over the last 15 years has helped greatly increase nationwide adoption of solar energy. Getting in touch with your local Thornton solar panel installation company is the right first step towards getting all the incentives you qualify for when you switch to solar energy.

EcoWatch's Thornton, CO Solar Incentives FAQs

How do I know if I qualify for different solar incentives?

In most cases, solar incentives apply to:

  1. a new solar panel system
  2. installed on property that you own
  3. within the U.S.
  4. between the dates specified by a particular incentive.

Specific incentives, including ones handled by the Colorado government or by your county/municipality, sometimes have additional qualifications. Speak with your local Thornton solar installer to find out what incentives your project may qualify for.

How much can I save annually on my electric bill if I add solar panels to my house in Thornton?

Typically, Thornton homeowners who install solar panels save around $1,040.64 per year, or approximately $20,812.86 over 20 years after making the switch.

What are the environmental benefits of switching to solar energy?

You can reduce your carbon footprint by 50 pounds of CO2 annually when you switch to solar panels. This adds up to around 1,000 pounds in 20 years. Solar is also a renewable energy source, meaning that making the switch lessens the drain on our planet's resources.

Can I use a combination of multiple types of renewable energy to power my home?

You can power your home with multiple types of renewable energy, or a combination of renewable and non-renewable energy. Be sure to talk through your plan with your local Thornton solar installer. They can help you plan your project and also help you understand the various incentives that you might or might not qualify for.

What if I add a solar system to a rental property, vacation home or commercial property? Can I still qualify for incentives?

Many solar incentives apply to a property located within the United States that you own, and most secondary residences will fall under this distinction. There may be other solar incentives available for commercial properties, depending on the specifics. We recommend speaking with your local solar installer and/or tax professional to better understand what incentives apply to your specific situation.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.

Solar incentive research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.