2023 Solar Incentives Guide for Castle Rock, CO - Tax Credits & Rebates

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

You'll learn about:

  • Local & State Solar Incentives
  • Federal Tax Credits (Updated for 2023 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 Castle Rock solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 20, 2023

Why you can trust EcoWatch

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 Castle Rock?

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

Mountain View Electric Association, Inc - Energy Efficiency Rebates Program

Incentive Type:
Rebate Program
Residential Lighting
Energy Star LED Bulbs: 50% of cost

Residential Appliances
Refrigerator/Freezer: $30/unit plus $60/unit if recycled
Dryer: $30-$90
Clothes Washer: $30-$40
Dishwasher: $20
Water Heater: $50-$350/unit
Marathon Electric Water Heater: $200/unit plus $2/gallon
Air Conditioner: $100-$150
Geothermal Heat Pump: $500/ton
Geothermal Heat Pump Replacement: $250
Thermal Storage: $16-$20/kW Air Source Heat Pump: $300-$450/ton
Packaged Terminal Heat Pump: $85/unit

Commercial Lighting
LED/Induction Street Lighting: 25% of cost
LED Refrigerated Case Lighting Retrofit: 50% of cost
Other Lighting Incentives: Vary, see program website

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/


Solar incentives are meant to help mitigate the cost of installing solar panels on your home. Financial incentives like these are in place to encourage more homeowners to make the switch to renewable energy. Various types of incentives, including cash back, discounts or credit towards your monthly utility bill, may be available to you. Some incentives may be provided via the state of Colorado, by your utility company or by county or municipality, while others are federal. Some broad categories of solar incentives include:

  • Tax Credits: Tax credits are dollar-for-dollar reductions that lower the amount of income tax you owe the government. (A tax credit is different from a tax deduction.)
  • Net Metering: Make sure you talk to your Castle Rock utility company about signing a net metering contract. This will allow you to receive credit towards your utility bill every month 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: These can come in the form of property tax exemptions, which let you exclude the value of your solar system when calculating the taxes you pay on your house. You may also qualify for an exemption on sales tax at the time of purchase.
  • Rebates: Rebates, or partial refunds after a purchase, are usually given before any solar tax credits are calculated. Solar rebates may be offered by your local utility company, by your county or by your state.

Federal Solar Incentives

When thinking about solar incentives, federal incentives might be the first thing that comes to mind. A federal incentive many people are likely to be familiar with is the Federal Solar Investment Tax Credit (ITC). The ITC is a tax credit for a given percentage of the cost of your solar system.

The ITC originally covered 30% of the cost of installing a solar system, and has fluctuated slightly over the years 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 claim amount. The ITC applies 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.

To best understand how the ITC may apply to you, contact your local Castle Rock solar panel installation expert and request more information.

The ITC was both renewed and expanded by the passage of the Inflation Reduction Act in August 2022. It's also now called the Clean Energy Credit. For solar systems installed between January 1, 2022 and December 31, 2032, homeowners may be eligible for a credit for 30% of the total cost. This percentage will decrease annually after 2032 until the Clean Energy Credit ends in 2035. The program expansion 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 Castle Rock solar panel installation expert is the best person to answer your questions regarding the new Clean Energy Credit and how it may apply to you.

State & Local Solar Incentives

Some solar incentives may be provided by state and local governments. As with federal incentives, these might include rebates, tax credits and more. Certain incentives are ongoing, while others might only be available for a limited time. These incentives may be offered by your county or municipality, or by the Colorado government.

Next Steps for Installing Solar in Castle Rock

The variety of solar incentives available has contributed greatly to the increase in the use of solar power nationwide over the past 15 years. You may receive solar incentives from your local utility company, the Colorado government or the federal government. Speak with your local solar panel installer today to find out more information and to save as much money as possible on a solar system for your Castle Rock home.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries (coming 2022)

Best Technology

Tesla Energy

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Castle Rock, CO Solar Incentives FAQs

Can I receive any incentives when I add solar panels to a vacation home, rental property or commercial property?

While we recommend getting in touch with your local solar installer and/or tax professional to better understand what solar incentives apply to you, many incentives can be claimed on a second home, as long as it is in the United States and owned by you. There may be additional incentives available for commercial properties specifically, depending on the details.

If I already have a solar system installed on my house, can I still claim incentives?

Your best bet is to talk to a representative from the company that installed your solar system — or call a local Castle Rock solar installer — to clarify which incentives you may qualify for. If your solar panels were installed after January 1, 2022, you likely qualify for the newly increased 30% tax credit under the Inflation Reduction Act. Systems installed between 2006 and 2021 may qualify for a tax credit of 26-30%.

Who installs solar panel systems near me?

To find a top-rated solar panel installer, check out our guide to Castle Rock's best solar panel companies.

What are some environmental benefits of installing solar panels on my house?

Solar energy is a renewable energy source — by switching where you get your energy, you help lessen the strain on our planet's resources. A solar system can also lower your home's CO2 emissions by 500 pounds annually, or roughly 11,000 pounds over 20 years.

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

Yes, you can employ multiple types of renewable energy to power your home — for example, a combination of solar and wind power. You can also use both renewable energy sources and a backup source of non-renewable energy. You should discuss your proposed plan with your local Castle Rock solar panel installer, to make sure you know what you'll need and what types of incentives you may or may 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.

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