2025 Solar Incentives Guide for Ottawa, IL - Tax Credits & Rebates

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

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 Ottawa solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

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

Special Assessment for Solar Energy Systems

Incentive Type:
Property Tax Incentive

ComEd - Energy Efficiency Program for Residential

Incentive Type:
Rebate Program
Appliances
Air Purifier: $50
Clothes Washer: $50
Dehumidifier: $50
Electric Clothes Dryer: $50
Freezer: $50
Refrigerator: $50
Room Air Conditioner: $25

Refrigerator/Freezer Recycling: Free pickup and $50, plus an additional $10 if recycling a room A/C at the same time
Heating & Cooling
Air Source Heat Pump: $400 - $600
Central A/C: $300 - $600
Ductless Mini-Split Heat Pump: $400
Geothermal Heat Pump: Up to $6,000/home
Furnace Blower Motor (ECM): $50 - $100
Miscellaneous
Advanced Power Strip: $10
Air Sealing: Up to $400/home
Attic Insulation: Up to $300/home
Duct Sealing: Up to $500/home
Lighting: In-store discounts, varies
Pool Pump: $275
Smart Thermostat: $100
Wall Insulation: Up to $400/home

Solar Renewable Energy Credits

Incentive Type:
Solar Renewable Energy Credit Program
Negotiated with procurement administrators

Wabash Valley Power Association (28 Member Cooperatives) - Residential Energy Efficiency Program

Incentive Type:
Rebate Program
Dual Fuel Heat Pump: $500
Variable Speed Pool Pump: $250
Air-Source Heat Pump: $250 - $750
Geothermal Heat Pump: $1,500
Heat Pump Water Heater: $400/unit
HVAC: Varies depending on ZIP code. See program website

Corn Belt Energy Coop - Residential Energy Efficiency Rebate Program

Incentive Type:
Rebate Program
Dual Fuel Heat Pump: $500/unit
Pool Pump: $250/unit
Air Source Heat Pump: $250 - $750/unit
Heat Pump Water Heater: $400/unit
Geothermal Heat Pump: $1,500/unit

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 encourage people to switch their home over to renewable energy by providing incentives that lower the financial burden of solar panel installation and use. The incentives could include upfront discounts, cash back or monthly credits towards your utility bill. Some incentives are given by the federal government, some by the Illinois government and some by your specific utility company, county or municipality. Categories of solar incentives include:

  • Rebates: A rebate is a partial refund credited to your account after you've paid for your solar panels. Rebates may be offered by your local utility company, your state or your county. The discount that rebates offer is normally applied to the price of solar panels before calculating tax credits.
  • Net Metering: Net metering is an incentive you can get once your solar system is up and running. If you've signed a net metering agreement with your Ottawa utility company, they will subtract the value of the excess energy your solar system produces from your monthly utility bill. In some locations, this is a dollar-for-dollar credit, while in other places you may make back a percentage of the value.
  • Tax Credits: Unlike tax deductions, tax credits are dollar-for-dollar reductions in the amount of income tax that you owe the federal government.
  • Solar Renewable Energy Certificate (SREC): SRECs and similar performance-based incentives are typically handled at the state level. Once your solar panel system meets a predetermined threshold (normally a small amount of energy production), you can receive SRECs that can then be sold to your utility company or other buyers. The money you receive from the sale is generally considered part of your taxable income.
  • Tax Exemptions: Your solar system may qualify for exemptions on both sales and property tax. Sales tax exemptions are effective at the time of purchase. Property tax exemptions allow you to exclude the added value of the solar panels when you are calculating property taxes on your house.
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Federal Solar Incentives

Federal incentives are the kind of incentives that you are most likely to have heard of. The Federal Solar Investment Tax Credit, or ITC, is likely the most well-known federal solar incentive. The ITC provides you with a tax credit for a set percentage of the cost of your solar system.

The ITC can be applied to a solar system installed on your primary or secondary residence in the United States. The solar system must have been installed after January 1, 2006, on a property owned by you for you to be eligible for the credit. The ITC originally paid out 30% of all system costs (panels, labor, accessories and equipment), although this amount has fluctuated over time between 26-30%. The installation date of your solar system will determine what percentage you are eligible for. There is no cap on the claim amount.

Contacting your local Ottawa solar panel installer is the best way to understand how the ITC may apply to you.

The Inflation Reduction Act, passed in August 2022, expanded and extended the ITC (as well as renaming it to the Clean Energy Credit). Homeowners can now qualify for a credit of 30% of the total solar system installation costs for projects that began after January 1, 2022, and will be finished by the end of 2032. This percentage will then decrease yearly 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.

Click here to learn more about the new Inflation Reduction Act. Your local Ottawa solar panel company is the best resource for answering your questions about the new Clean Energy Credit and how it applies to you.

State & Local Solar Incentives

Rebates, tax credits and more might be provided at multiple levels. Along with federal solar incentives, there are often state and local ones as well. Certain incentives are offered for only a limited time, while others are ongoing. These local incentives could come from the Illinois government, or from your specific county or municipality.

Next Steps for Installing Solar in Ottawa

The nationwide use of solar energy has significantly increased in the last 15 years, in part due to the increase in availability of solar incentives. You might receive these incentives from the Illinois government, the federal government or your local utility company. If you're prepared to make the change to solar energy, talking to your local Ottawa solar panel installation expert is an excellent place to start.

EcoWatch's Ottawa, IL Solar Incentives FAQs

How do I learn if I qualify for certain solar incentives?

It's a good idea to talk to your local Ottawa solar installer to get an understanding of which incentives your project may qualify for. Generally, solar incentives apply to new solar panel systems installed on a property you own (in the U.S.) between the dates specified by the incentive. Some incentives, such as those provided by the Illinois government, may have additional requirements.

How long until the federal solar tax credit ends?

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

Can I claim incentives both towards the up-front cost of solar panels, and later as reimbursement?

Yes, you can claim both tax credits and rebates towards the cost of solar panels. Depending on which incentives you are claiming, they may apply in a different order. Be sure to talk to your solar installer or a local tax professional to confirm that you are claiming incentives correctly and that you're getting the most money you can.

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

Many solar incentives are intended to apply to a property you own that is located within the United States, and most secondary residences fall into this category. There may be other solar incentives available for commercial properties, depending on the details. We recommend getting in touch with your local solar installer and/or tax professional to fully understand what incentives apply to your specific situation.

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