Pasco, Washington Solar Panel Cost: Savings and Payback (May 2026)

  • You'll spend an average of $17,450 on a 5 kW system in Pasco, Washington (the tax credit no longer applies).
  • For Pasco, you can use $3.49 per watt to determine the price of a larger system with (system size x price per watt).
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Brogan Woodburn
Alex Zdanov
Fact checked by Alex Zdanov
Updated April 13, 2026

What to know

  • Cost: About $2,443 for a 1 kW system to $12,215 for a 5 kW system.
  • Savings: 9 year payback; about $16,261 saved over 20 years.
  • Environmental benefits: Potential to reduce your carbon emissions significantly.

Installing a 5 kW solar panel system on your Pasco home can cost about $17,450. Solar panel systems are measured by kW production, and the average system costs about $3,489 per kW of installed capacity. Looked at another way, you'll pay about $3.49 per watt for installation.

That said, our data shows an 11 kW system is the best size for Pasco residents. This is because people in Pasco consume 1,226 kWh per month of energy. The average electric bill is $118.63 per month with an average price of 9.68c per kWh. Considering this average, the right solar panel system has the potential to save you money in Pasco.

Are solar panels worth it in Pasco?

Let's take a closer look at whether solar panels are worth it. To figure this out, you'll want to compare your estimated savings after solar to what you'd pay in energy without solar panels.

The payback period is the amount of time until you break even on your investment considering savings from energy bills. And the net 20-year savings is what you save over 20 years minus the upfront costs. Considering energy prices tend to rise over time, it's usually worth it to get solar panels if you can get a good installation price.

5 kWh SystemPasco AverageU.S. Average
Upfront Cost$12,215$12,530
Payback period9 Years7 Years
Net 20-year savings$16,261$24,009
These are estimates. Getting personalized quotes from local installers is crucial for accurate pricing.

What's the best solar system size in Pasco, Washington?

To find out the right size of the solar system for your home, consider your energy usage, local sun hours, and available roof space. Here's what the average solar potential looks like in Pasco:

  • Roof size: 813.3 sq. ft.
  • System capacity: Up to 11,944.31 kW DC
  • Electricity production: About 1,450.04 kWh AC per year

The goal with solar panels is to find the sweet spot where you generate the electricity you need and can save enough energy costs to recoup your investment in a reasonable time.

Below you can see power generation, cost, and savings of different system sizes.

7 kW
System
8 kW
System
9 kW
System
10 kW
System
11 kW
System
Roof Space501 ft2572 ft2644 ft2715 ft2787 ft2
Annual power value$982$1,123$1,263$1,403$1,424
Average cost$17,101$19,544$21,987$24,430$26,873
Average yearly production10,150 kWh11,600 kWh13,050 kWh14,500 kWh15,950 kWh
Average monthly savings
$81.86
$93.56
$105.25
$116.95
best value
$118.63
Full payback period12 years14 years15 years17 years19 years
CO2 reduction per year0.93 tons1.06 tons1.20 tons1.33 tons1.35 tons
Savings assume a $118.63 monthly electricity bill

How to pay for solar panels in Pasco, Washington

Purchasing solar panels is no small task. Here are a few ways you can pay for solar:

  • Cash purchase: This is the best choice if you can afford it. Paying in cash gives you the best long-term savings but requires a larger upfront investment, of course.
  • Solar loans: You can spread the cost over time with a loan, but be mindful of interest rates and loan terms.
  • Solar leases and PPAs: Power purchase agreements (PPA) and leases have lower upfront costs. However, you don't own the system, which means you save the least over time. There can also be complications if you want to sell your home.

What affects the cost of solar panels in Pasco?

Several factors impact the final price of your solar installation:

  • System size: Larger systems cost more upfront but often yield greater long-term savings.
  • Panel type and efficiency: Monocrystalline panels are generally more efficient and expensive than polycrystalline or thin-film options.
  • Installation complexity: Roof type, shading, and site-specific challenges can increase installation costs. Permitting and inspection fees also factor in.
  • Additional considerations: Battery storage adds to the initial investment but provides backup power and greater energy independence. Labor and installation quality are also essential cost considerations.

How to save on Pasco, WA solar panel costs

Getting the most bang for your buck is essential when investing in solar. Here are some strategies to save money:

  • Shop around for quotes: Get quotes from multiple installers to compare pricing and services. Don't just focus on the lowest price; consider reputation, experience, and warranty.
  • Consider system size: Be careful of going overboard. A properly sized system will meet your energy needs without unnecessary costs. Analyze your energy usage to determine the optimal size.
  • Explore financing options: Compare loan interest rates and terms carefully. If considering a lease or PPA, understand the long-term implications and potential trade-offs. Cash purchases often offer the best long-term savings.
  • Negotiate with installers: Don't be afraid to negotiate on price. Inquire about any discounts or promotions they may offer.
  • Optimize your home's energy efficiency: Before going solar, improve your home's energy efficiency. This will reduce your overall energy consumption and potentially allow you to install a smaller, less expensive solar system. Simple steps like sealing air leaks and upgrading appliances can make a difference.
  • DIY (if possible and permitted): While professional installation is generally recommended, some homeowners may be able to handle certain tasks themselves (like site preparation). Check your local regulations and be honest about your abilities.
  • Ask about rebates and incentives: Many states, cities, and utility companies offer rebates, net metering, and other incentives. Check with your local utility and city/county for any available programs.
  • Time your installation: Sometimes, installers offer discounts during slower periods. Inquiring about seasonal promotions might yield savings.

Washington-specific solar considerations

  • Weather Impacts: Washington's weather really depends on where you are. Western parts of the state can be quite rainy and overcast, while eastern Washington enjoys plenty of sunshine. This variability means your system design may need to be tailored to your specific region.
  • Regulatory and Legal Considerations: The permitting process in Washington varies by region. It's important to review local building codes and any HOA guidelines to ensure your installation meets all necessary requirements.

Solar panel pricing in cities near Pasco, Washington

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Brogan Woodburn
Written by
Content Lead

Brogan Woodburn is a writer who enjoys working with data to help people make informed purchasing decisions. With a keen eye for research and analysis, he creates content that breaks down complex topics—whether it’s choosing the right products, understanding consumer trends, or navigating important buying decisions. His work has been read by thousands and featured on sites like USA Today and MarketWatch. Whether diving into technical details or uncovering the best options for consumers, Brogan’s goal is to provide clear, reliable, and data-driven insights that help people make confident choices. Outside of writing, he’s also a professional guitarist, performing jazz and classical music throughout Central Oregon.

Alex Zdanov
Fact checked by
CTO of PowerOutage.us

Alex Zdanov is passionate about transforming complex data into clear, actionable insights. With extensive experience in data administration and pipeline management, Alex ensures data is delivered to consumers with the utmost accuracy. His background in electrical engineering further equips him to emphasize the real-world implications of the data he presents.

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