Solar Panels Cost $16k-$25k in Clark County, WA | August, 2025
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How much do solar panels cost in Clark County, WA in 2025?
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Solar systems in Clark County, WA during August, 2025 typically are $3.34 per watt.
Each 1 kW (1000 watts) of solar generation capacounty will require an investment of $3,340 for installation. We can come to this conclusion based on the rate price cost. When you consider the 30% federal tax credit, a 5 kW solar panel install in Clark County will cost approximately $11,690. However, a 5kW systemmay not be large enough to satisfy your energy requirements.
To the left, you can select your county to access information on the typical roof size and the maximum capacity of residential solar for houses in your area. Below, you can see a full analysis of the costs, payback period, and 20-year average savings for a 5 kW system in your county.
Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
Clark County: $11,690US Average: $12,523
Average Payback Period The number of years until you break even on the solar investment.
Clark County: 9 yearsUS Average: 7 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
Clark County: $8,992US Average: $17,429
Solar Potential in Clark County
Estimated system size and solar electricity production per median viable roof in Clark County.
Roof size 876sq. ft.
Capacity 12.25kW DC
Electricity 12kkWh AC per yr.
Electricity Costs in Clark County, WA & What that Means for Your Solar Panel Pricing
Energy consumers in Clark County usually use 1,005 kWh per month, with an average monthly bill of 107.05. These figures also cover apartments and smaller residences with generally lower energy consumption.
In August 2025, the mean electricity rate in Clark County, WA is 10.65¢ per kWh.
The cost of a an 11 kW solar system is approximately $36,740 initially, but the federal tax credit provides a 30% credit, lowering your final cost to $25,718.
Go Solar for less than your cell phone bill.
Average solar panel costs by system size in Clark County
Located below and to the left, there is the pricing details for multiple sizes of the solar panel systems installed in Clark County. The initial cost for larger solar systems is larger, but they also offer more significant electricity savings and higher income tax credits.
The solar panel cost calculator down and to the right details costs and benefits, using an average $107.05 electric bill in Clark County Simply replace the $107.05 with your usual electricity bill amount to see customized results.
System Size
Roof Size Min. space required
Electricity Value Annual Production
Est. Price
System Size 7kW
Roof Size Min. space required
501 ft²
Electricity Value Annual Production $896 a year
Est. Price
$16,366
Savings from a 7kWthis system
Est. yearly production 8,146 kWh
Est. monthly savings $75
Full payback in 13 years
Environmental Impacts
Reduces CO2 emissions by 1.42 tons a year
Equivalent to planting 65 trees a year
Equivalent to driving 3,506 mi less a year
System Size 8kW
Roof Size Min. space required
572 ft²
Electricity Value Annual Production $1,024 a year
Est. Price
$18,704
Savings from a 8kWthis system
Est. yearly production 9,309 kWh
Est. monthly savings $85
Full payback in 15 years
Environmental Impacts
Reduces CO2 emissions by 1.62 tons a year
Equivalent to planting 74 trees a year
Equivalent to driving 4,007 mi less a year
System Size 9kW
Roof Size Min. space required
644 ft²
Electricity Value Annual Production $1,152 a year
Est. Price
$21,042
Savings from a 9kWthis system
Est. yearly production 10,473 kWh
Est. monthly savings $96
Full payback in 16 years
Environmental Impacts
Reduces CO2 emissions by 1.82 tons a year
Equivalent to planting 84 trees a year
Equivalent to driving 4,508 mi less a year
System Size 10kW
Roof Size Min. space required
715 ft²
Electricity Value Annual Production $1,280 a year
Est. Price
$23,380
Savings from a 10kWthis system
Est. yearly production 11,637 kWh
Est. monthly savings $107
Full payback in 18 years
Environmental Impacts
Reduces CO2 emissions by 2.02 tons a year
Equivalent to planting 93 trees a year
Equivalent to driving 5,009 mi less a year
System Size 11kW
Roof Size Min. space required
787 ft²
Electricity Value Annual Production $1,408 a year
Est. Price
$25,718
Savings from a 11kWthis system
Est. yearly production 12,800 kWh
Est. monthly savings $107
Full payback in 20 years
Environmental Impacts
Reduces CO2 emissions by 2.03 tons a year
Equivalent to planting 93 trees a year
Equivalent to driving 5,025 mi less a year
Clark County Solar Panel Installation Incentives & Rebates | 2025
The REAP Grant can potentially cover between 80% and 100% of the installation costs for solar or wind turbines for rural small businesses and farms. Verify if you are eligible by utilizing our REAP Grant eligibility tool.
With the availability of a 30% federal income tax credit, solar energy becomes a viable solution for almost all homeowners, especially in various parts of the country. State and local efforts are also in place to boost the growth of solar energy use.
A total of 15 solar incentive and rebate programs are available in Washington from multiple utilities and government organizations.
Solar incentives in WAIncentive Description Value
Renewable Energy Sales and Use Tax Exemption
Value:Varies
Most renewable energy systems in Washington state are at least partially exempt from sales/use tax. Qualifying technologies include solar, wind, some biomass, hydroelectric, geothermal, landfill gas, and hog fuel (wood-burning.) Total exemptions are available for hog fuel systems and solar devices rated for less than 10 kW. Other systems will receive a 75% exemption applied at the time of purchase. Exemption certificates are available from the Department of Revenue and must be presented to the equipment dealer.
Renewable Energy Standard
Value:Varies
Washington first established a renewable portfolio standard in 2006 upon the passage of a statewide referendum. The most recent standard goals required at least 15% of each utility's retail electricity to be generated using renewable technology by 2020. Compliance with the standard is measured using a Renewable Energy Credit system pegging one megawatt hour of electricity to a variable dollar amount. Utilities may generate credits using their own renewable facilities or purchase them from customers through tariff programs. Should a utility fail to meet its standard quota, it will be fined for each credit it is deficient. Utilities are exempt from the standard if they do not have load growth or if renewable energy investment would not be cost-effective.
Interconnection Standards
Value:Varies
Distributed generation and interconnection practices in Washington state have been standardized since 2007. All private utilities are subject to the standards; local public utilities and cooperatives are exempt. Each new renewable energy system to be interconnected will be assigned one of three regulatory Tiers. A system's Tier determines the IEEE/UL/NEC standards it must follow and the rigor of the permit process, including application fees and turnaround times. Tier 1 ends at 25 kW, while Tier 2 ends at 500 kW. External disconnect switches are required for systems at or above Tier 2. Utilities may require customers to carry liability insurance or a minimum warranty for their system.
Green Building and Energy Reduction Standards for State Agencies
Value:Varies
Since 2005, new state buildings and public remodeling projects in Washington state have been required to follow certain green building standards. Any new occupied public building at least 25,000 square feet in size must meet the requirements for LEED Silver certification and pursue formal accreditation from the US Green Building Council. Remodeling projects should incorporate as many LEED principles as possible, though they are not required to pursue formal certification. Additional information is available from the Washington Department of Enterprise Services.
Clark Public Utilities - Solar Energy Equipment Loan
Value:Varies
Residential customers of Clark Public Utilities may be eligible for special loans to fund new solar energy systems and components. The maximum available principal per loan is $30,000 at 3.5% APR. The principal determines both repayment period duration and the applicable fees and conditions. Additional information is available from the CPU website.
Grays Harbor PUD - Net Metering
Value:Varies
The Grays Harbor Public Utility District operates a unique net metering program. Credits for net excess generation are awarded at the end of each year and amount to half of the normal retail price. While the Grays Harbor program technically does not follow the letter of the state's net metering laws, customers may earn additional benefits and have a greater incentive to adopt renewable energy. Additional information is available through the utility website.
Seattle City - Solar Permit Requirements
Value:Varies
Seattle's zoning laws and local ordinances contain special provisions and accommodations for solar energy within city limits. All new solar projects are required to obtain electrical permits, but may not need building permits if the total system weight is less than 1,000 pounds or the system does not require alterations/stand-alone structure of more than $4,000. Setback requirements prohibit systems from being located in a front yard. However, solar panels may extend up to four feet from the normal height limit for the zone. A central guide is available from the city website detailing all applicable regulations and process flows.
WSHFC Sustainable Energy Program
Value:Varies
The Sustainable Energy Program/Trust is a division of the Washington State Housing Finance Commission. Residents and businesses undertaking new green construction or making energy efficiency improvements may be eligible for at least $50,000 of special financing. Interest rates of 2 - 4% are available. To qualify, a project should improve the site or entity's energy efficiency by at least 10%. Standard engineering reviews and pre/post-work energy audits apply. Additional information is available from the WSHFC website.
Evergreen Sustainable Development Standard for Affordable Housing
Value:Varies
The Evergreen Sustainable Development Standard is Washington's green building rubric tailored for new affordable housing. Standards are based on LEED and incur points for compliance. Small energy efficiency practices can earn 1 point, using renewable energy (such as solar PV) can earn five points, and exceeding the total standard will earn 15 points. New affordable housing projects should earn at least 50 points; remodeling projects should earn at least 40 points. Additional information and a copy of the standard are available from the Washington State Department of Commerce.
Renewable Energy Manufacturing Program
Value:Varies
The Sustainable Energy Program/Trust is a division of the Washington State Housing Finance Commission. Residents and businesses undertaking new green construction or making energy efficiency improvements may be eligible for at least $50,000 of special financing. Interest rates of 2 - 4% are available. To qualify, a project should improve the site or entity's energy efficiency by at least 10%. Standard engineering reviews and pre/post-work energy audits apply. Additional information is available from the WSHFC website.
Mandatory Utility Green Power Option
Value:Varies
Washington state law requires all public or private electrical utilities with a customer base of at least 25,000 to offer green power options. Customers can purchase 100% renewable energy in fixed blocks. This energy may be derived from solar, wind, biomass, hydroelectric, landfill gas, or a combination of these technologies. Each customer will be notified of the green power option on a quarterly basis. Annual reports on program uptake and resources are available from the state legislature.
Tax Abatement for Solar Manufacturers
Value:Varies
In 2005, former Washington governor Christine Gregoire approved a legislative corporate tax cut for the state's solar energy device and component manufacturers. Current tax rates for these companies are at least 43% below the average liability. Tax incentives only apply to businesses producing silicon components, semiconductors, solar cells, converters, and other components directly involved in the production of photovoltaic energy. The special rates expire in 2027. Additional information is available from the Department of Revenue.
Net Metering
Value:Varies
In Washington, any renewable energy system rated for under 100 kW is eligible for net metering. All public/private utilities and cooperatives must offer interconnection and net metering to new renewable energy customers. Upon agreeing to a net metering contract, the energy system's owner will have a bidirectional meter installed to measure net excess generation (NEG) sent back to the grid. Utilities will credit customer bills for NEG at an avoided-cost rate per kilowatt hour. Should generation exceed consumption for any given cycle, NEG credits may roll forward to subsequent months. Additional information is available from the Washington Utilities and Transportation Commission.
Renewable Energy Cost Recovery Incentive Payment
Value:Varies
The Sustainable Energy Program/Trust is a division of the Washington State Housing Finance Commission. Residents and businesses undertaking new green construction or making energy efficiency improvements may be eligible for at least $50,000 of special financing. Interest rates of 2 - 4% are available. To qualify, a project should improve the site or entity's energy efficiency by at least 10%. Standard engineering reviews and pre/post-work energy audits apply. Additional information is available from the WSHFC website.
Energy Efficiency and Solar Grants
Value:Varies
The Sustainable Energy Program/Trust is a division of the Washington State Housing Finance Commission. Residents and businesses undertaking new green construction or making energy efficiency improvements may be eligible for at least $50,000 of special financing. Interest rates of 2 - 4% are available. To qualify, a project should improve the site or entity's energy efficiency by at least 10%. Standard engineering reviews and pre/post-work energy audits apply. Additional information is available from the WSHFC website.
Are solar panels worth it in Clark County, WA?
For homeowners in Clark County planning to stay beyond the payback period of their solar system, solar panels are the obvious choice. Installing a 5 kW solar system in Clark County, WA will, on average, save you $14,002 over 20 years, and you can expect to break even in about 9 years.
The cost of not having solar panels in Clark County, WA
Skipping solar panels or an alternative backup energy source results in you'll miss out on the savings mentioned above and be completely dependent on your electric utility for power. Full reliance on your utility provider is not always ideal, as recent examples in the news have highlighted.
On average, customers in Clark County have encountered 0.48 utility outages per year over the past few years. Each outage, on average, lasts for 45 minutes. In the case of major events like high winds, aging infrastructure, or planned maintenance, this period can rise substantially.
Take a look at the info below to see the number of current electricity customers without power in Clark County.
A solar panel system, with or without a backup battery, could mitigate the effects of future outages you might face.
Power Outages
Currently, 0 customers are being tracked in Clark County.
What impacts the cost of solar panels in Clark County, WA?
Your Energy Needs - Investing in larger solar panel systems costs more upfront, but the price per watt is reduced as the system size grows. Most consumers find it useful to install a solar system that can produce enough electricity to offset the entirety of their electric bill. This approach makes the most sense for optimal savings.
Make & Model - Similar to many other products, there are different makes and models of solar panels and mounting equipment to choose from. Given the certain brand preferences an installer might have, picking a highly rated company is crucial. The choice of better materials can substantially better the long-term experience for buyers.
Solar Panel Type - Monocrystalline panels have emerged as the standard in the industry, and deservedly so. Although the cost is more, they yield more energy. Many installers use these panels.
Your Property - Each home and property is unique in its own way. Rough terrain, trees, or additional obstacles may complicate the installation. These days, solar installers frequently utilize satellite images to evaluate your home and include these elements into the preliminary cost estimate.
Labor Rates - Companies pay varying pay rates to their employees, which are then passed on to the prices consumers pay. Businesses typically garner higher reviews for their services and customer service when they pay higher wages.
Permitting & Interconnection - Your final installation cost will be influenced by local permitting and utility interconnection fees, which vary by area. Reputable local installers will integrate these numbers into your preliminary quotes to prevent any surprises.
See what solar panels cost in other Clark County cities
Solar systems for selling electricity back to the grid.
Clark County, WA Solar Panel Cost FAQs
In Clark County, WA, the mean cost per watt for solar panels as recorded in August, 2025 is $3.34/W. In Clark County, WA, the cost of installing a 5 kW solar panel system is approximately $11,690 after applying the federal tax credit.
Homeowners in Washington can take advantage of 15 different rebates and incentives from a variety of utility companies and government agencies. In addition, the 30% federal income tax credit is available to almost everyone.
Even though cash payments provide the greatest savings, numerous financing options for solar panels today are also advantageous. Information about financing options is typically provided in initial quotes provided by installers.
Yes, the average time to recoup the cost of 5 kW solar panels in Clark County, WA is 9 years, with homeowners saving an average of $14,002 on electricity over 20 years.
Savings from 
Environmental Impacts 
