2024 Solar Incentives Guide for SeaTac, WA - Tax Credits & Rebates

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

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 SeaTac 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 SeaTac?

Renewable Energy Cost Recovery Incentive Payment

Incentive Type:
Feed-in Tariff
FY 2021: $0.02/kWh - $0.10/kWh

Renewable Energy Sales and Use Tax Exemption

Incentive Type:
Sales Tax Incentive
100% exemption for sales of forest derived biomass used as fuel;
100% exemption for solar photovoltaic systems 10 kilowatts or less, and solar thermal systems;
75% exemption for other qualified systems

Evergreen Sustainable Development Standard for Affordable Housing

Incentive Type:
Green Building Incentive

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 term "solar incentives" refers to financial incentives put in place by solar companies and the government to encourage increased use of renewable energy by making installing and using solar panels more affordable. These incentives may include upfront discounts, cash back or monthly credits towards your utility bill. Some incentives are handled by the federal government, some by the state of Washington and some by your specific utility company, county or municipality. Some broad categories of solar incentives include:

  • Rebates: Rebates, or partial refunds after a purchase, are typically given prior to any solar tax credits being calculated. Rebates may be provided by your local utility company, by your state or by your county.
  • Tax Exemptions: Tax exemptions may come in two forms. First, there is sales tax exemption, 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 house.
  • Tax Credits: Tax credits are dollar-for-dollar reductions in the amount of income tax that you owe the federal government. (This is different from a tax deduction.)
  • Net Metering: You may be able to sign a net metering agreement with your SeaTac utility company, that may apply to all or a percentage of the excess electricity that is generated by your solar panels. Your utility company will then subtract this value from your utility bill each month.

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Federal Solar Incentives

When you hear the term "solar incentives," federal incentives are likely the first thing that comes to mind. You may have heard of the Federal Solar Investment Tax Credit, or ITC. The ITC is a tax credit that reduces your taxes by a certain percentage of the money you spend installing solar panels.

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

Talking to your local SeaTac solar panel installation expert is the best way to learn more about how the ITC applies to you.

In August 2022, the ITC (now called the Clean Energy Credit) was expanded and extended by the passage of the Inflation Reduction Act. The Clean Energy Credit runs until 2035. Your solar installation project undertaken between 2022 and 2032 may qualify for a 30% tax credit; the amount will decrease slightly each year until the end of the current program. Starting in 2023, the program expansion will also make it easier to get credit for energy storage systems.

Click here to learn more about the new Inflation Reduction Act. To best understand how the new Clean Energy Credit might apply to you, reach out to your local SeaTac solar installers.

State & Local Solar Incentives

Some solar incentives are often also provided by state and local governments. Like with federal incentives, these might include tax credits, rebates and more. These incentives — which might be handled by the state of Washington, or by your county or municipality — might be offered on an ongoing basis, or for only a limited time.

Next Steps for Installing Solar in SeaTac

There are many types of solar incentives: those given by local utility companies, those offered by the federal government and those provided by the Washington government, to name a few. Solar energy use has grown enormously in the last 15 years, partially due to these incentives. It is a good idea to talk to your local SeaTac solar installer to learn more about these incentives and to ensure that you're getting the largest number possible for your solar panels.

EcoWatch's SeaTac, WA Solar Incentives FAQs

I already have solar panels. Does my system qualify for any incentives?

If your solar panels were installed after January 1, 2022, you may qualify for the newly increased 30% tax credit under the Inflation Reduction Act. If you installed your system between 2006 and 2021, you may qualify for a tax credit between 26% and 30%, depending on the year it was installed. Speaking with a representative from the company that installed your solar system, or any local SeaTac solar installer, can help you understand what incentives you qualify for.

How long until the federal solar tax credit ends?

The Clean Energy Credit (formerly named the federal solar tax credit, or the ITC), is scheduled to end on January 1, 2035. Currently set at 30%, the credit will drop to 26% in 2033 and to 22% in 2034.

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

You can use multiple types of renewable energy, or a combination of renewable and non-renewable energy, to power your home. Make sure you discuss your plan with your local SeaTac solar installation expert. They can help you as you plan for your project and also help you understand the various incentives that you will or won't qualify for.

What if I want to add a solar system 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; most secondary residences fall into this category. There may be other solar incentives available for commercial properties, depending on the specifics. We recommend reaching out to your local solar installer and/or tax professional to fully understand what incentives will 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.

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