2024 Solar Incentives Guide for Washington, DC - Tax Credits & Rebates

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

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 Washington solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 03, 2024

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

Solar Renewable Energy Credits

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

Solar Energy System and Cogeneration System Personal Property Tax Credit

Incentive Type:
Property Tax Incentive
100% exemption

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 implemented to make installing and using solar panels more affordable. This is done to encourage people to switch to renewable energy. Different types of incentives, like cash back, discounts or credit towards your monthly utility bill, might be available to you. Some incentives may be offered by the state of District of Columbia, by your utility company or by county or municipality, while other incentives are federal. Categories of solar incentives include:

  • Tax Credits: Different from tax deductions, tax credits are dollar-for-dollar reductions in the amount of income tax that you owe the government.
  • Net Metering: Net metering becomes relevant once your solar system is up and running. If you have a net metering agreement with your Washington utility company, the company will subtract the value of the excess energy produced by your solar system from your monthly utility bill. In some areas, this credit is dollar-for-dollar, while in others you might receive a refund equivalent to a percentage of the value.
  • Tax Exemptions: These can come in the form of property tax exemptions, which would allow you to exclude the value of your solar system when paying property tax on your home. You may also qualify for an exemption on sales tax at the time of purchase.
  • Rebates: A rebate is a partial refund after the purchase of your solar system. Rebates may be offered by your local utility company, your county or your state. The discount that rebates offer is normally applied to the price of solar panels before calculating tax credits.
  • Solar Renewable Energy Certificate (SREC): SRECs and other performance-based incentives may be available to you if the solar system on your home produces over a specified (generally small) amount of electricity. These types of incentives are usually handled at the state level. You can sell any SRECs you have to your utility company or other buyers, and the money you receive in return is typically considered part of your taxable income.

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Federal Solar Incentives

When you think about solar incentives, you likely think of federal incentives first. You might have heard of the Federal Solar Investment Tax Credit, or ITC. The ITC is a tax credit that reduces your taxes by a predetermined percentage of the money you spend on solar panels for your home.

The ITC initially applied to 30% of the cost of installing a solar system, although that number has fluctuated slightly over time between 26-30%. The installation date of your solar system will determine what percentage you qualify for. 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 applies to solar systems installed after January 1, 2006, on your primary or secondary residence. The residence must be in the United States and owned by you.

Wondering how the ITC applies to your specific situation? Get in touch with your local Washington solar panel installation expert to get 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. With the new provisions, solar installation projects begun after January 1, 2022, and finished by December 31, 2032, may be eligible for a 30% tax credit. This percentage will then see a slight annual decrease until the current Clean Energy Credit expires in 2035. Starting in 2023, the expansion to the program will also make credits for energy storage systems even easier to claim.

More information about the new Inflation Reduction Act can be found here. To best understand how the new Clean Energy Credit might apply to you, get in touch with your local Washington solar installers.

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. Some incentives are ongoing, while others are offered for only a limited time. These local incentives might come from your county or municipality, or from the District of Columbia government.

Next Steps for Installing Solar in Washington

Solar incentives can be provided by the federal government, the District of Columbia government or your local utility company. The large number of incentives available has facilitated the nationwide growth of solar energy use in the last 15 years. Speaking with your local Washington solar panel installer is an excellent first step towards making sure you get all the incentives you qualify for when you switch to solar energy.

EcoWatch's Washington, DC Solar Incentives FAQs

How much will a solar system save me annually on my electric bill in Washington?

After adding solar panels to your home in Washington, you can expect to save around $649.65 per year, or approximately $12,343.39 over 20 years.

Who installs solar panel systems near me?

To find the best solar panel installation companies near you, read our article on Washington's best solar panel companies.

When does the federal solar tax credit end?

The federal solar tax credit, formerly known as 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.

Can I qualify for incentives both towards the initial cost of solar panels, and later as reimbursement?

Yes, you can receive both tax credits and rebates towards the cost of solar panels. Depending on which incentives you are applying for, 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 getting the most money you can.

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

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

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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