2025 Solar Incentives Guide for Littleton, CO - Tax Credits & Rebates

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

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 Littleton solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

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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 Littleton?

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

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" includes a range of financial incentives designed to make installing and using solar panels more affordable. This is done to encourage people to switch to renewable energy. The incentives may include upfront discounts, cash back or credit towards your monthly utility bill. Some incentives are handled by the federal government, some by the Colorado government and some by your specific utility company, county or municipality. Some solar incentives you might qualify for are:

  • Net Metering: Be sure to talk to your Littleton utility company about signing a net metering contract. This allows you to receive credit towards your utility bill every month for the value of excess energy generated by your solar panels. You may receive either a dollar-for-dollar credit or a percentage of the value.
  • Tax Credits: Different from tax deductions, tax credits are dollar-for-dollar reductions in the amount of income tax that you owe the government.
  • Rebates: Solar rebates can be provided by your county or state, or by your local utility company. These rebates work as cash back that is applied after you pay for a solar system and before tax credits are calculated.
  • Tax Exemptions: Tax exemptions can come in one of two forms. First, there is sales tax exemption, which is applied at the time you purchase your solar panels. The second is property tax exemption. This allows you to exclude the added value of your solar system when calculating property tax for your home.
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Federal Solar Incentives

When you think about solar incentives, you probably think of federal incentives first. You've likely heard of the Federal Solar Investment Tax Credit, or ITC. This is a tax credit that reduces your taxes by a specified percentage of the money you spend on your solar system.

The ITC applies towards solar systems installed after January 1, 2006, and allows you to deduct from your taxes a percentage of the total cost of solar panels, labor, equipment and accessories. You can claim this credit for solar panels installed on a primary or secondary residence in the United States that you own. The original amount you could claim was 30% of the total cost, although depending on when the project was completed, your credit may range from 26-30%. There is no maximum claim amount.

To know exactly how much money the ITC could save you, get in touch with your local Littleton solar panel installation expert.

The Inflation Reduction Act, passed in August 2022, expanded and extended the ITC (as well as renaming it to the Clean Energy Credit). The Clean Energy Credit runs until 2035. Any solar installation project that is completed between January 1, 2022, and December 31, 2032, may qualify for a 30% tax credit; this amount will decrease slightly each year until the end of the current program. The expansion to the program also makes claiming credit for energy storage systems easier than ever before, beginning in 2023.

More information about the new Inflation Reduction Act can be found here. Your local Littleton solar panel installation experts can answer your questions and explain how the new Clean Energy Credit may apply to you.

State & Local Solar Incentives

Some solar incentives may be offered at the local or state level. Like with federal incentives, these may include rebates, tax credits and more. These incentives may be distributed by your county or municipality, or by the Colorado government. Some are available for a limited time, while others are ongoing.

Next Steps for Installing Solar in Littleton

You can qualify for 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 in the past 15 years has helped increase solar adoption nationwide. When you're ready to make the switch to solar energy, calling your local Littleton solar panel installation expert is a great first step.

EcoWatch's Littleton, CO Solar Incentives FAQs

What are the top solar panel installation companies near me?

To find the best solar panel installers near you, read our article on the best solar companies in Littleton.

When does the federal solar tax credit end?

The federal solar tax credit, previously called the ITC and now called the Clean Energy Credit, is set to end January 1, 2035. The current 30% credit will end in 2032, replaced by a 26% credit in 2033 and a 22% credit in 2034.

I want to trade in my old appliances for ones that are more energy-efficient. Are there any credits I can apply for?

Under the new Inflation Reduction Act, there are several new financial incentives to encourage you to make eco-friendly improvements to your home. More details regarding these incentives, including information about incentives for purchasing new appliances, can be found here.

Can I use solar and another type of renewable energy in combination to power my home?

Yes, you can employ multiple types of renewable energy to power your home, such as a combination of solar and wind power. You can also use both renewable energy sources and a non-renewable backup source of energy. You should discuss your plan with your local Littleton solar panel installer, so that you understand what you'll need and what types of incentives you might or might not qualify for.

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.