Solar Panels Cost $25k-$35k in Grant County, WA | August, 2025
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How much do solar panels cost in Grant County, WA in 2025?
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You will pay, on average, $3.67 per watt in Grant County, WA in the month of August, 2025 to get solar installed.
This means that, solar panels will cost you $3,670 per 1 kW (or 1000 watts) of generation capacounty. In Grant County, when you subtract the 30% federal income tax credit, a 5 kW system will require you to pay $12,845. However, a 5kW systemmay not be enough to fulfill your energy requirements.
On the left-hand side, you can pick your county to see the average roof size and the maximum capacity for solar panels in residences in your area. Below, you can see a breakdown of the costs, payback period and 20 year average savings for a 5 kW system installed in your county.
Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
Grant County: $12,845US Average: $12,523
Average Payback Period The number of years until you break even on the solar investment.
Grant County: 10 yearsUS Average: 7 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
Grant County: $7,080US Average: $17,429
Solar Potential in Grant County
Estimated system size and solar electricity production per median viable roof in Grant County.
Roof size 822sq. ft.
Capacity 11.5kW DC
Electricity 14.4kkWh AC per yr.
Electricity Costs in Grant County, WA & What that Means for Your Solar Panel Pricing
In Grant County, the typical electric bill for an energy user is 105.96, with an average monthly usage of 1,722 kWh. Compact residences, such as efficiency studios and apartments, are also covered by the numbers cited in the earlier sentence.
The electricity rate per kWh in Grant County, WA for August 2025 averages 6.15¢.
At the moment, a 14 kW solar setup will be priced at around $51,380upfront, but thanks to the federal tax credit, you get a 30% reimbursement, bringing the cost down to $35,966.
Go Solar for less than your cell phone bill.
Average solar panel costs by system size in Grant County
Displayed on the left side, you'll see a comprehensive pricing structure of the various sizes of solar panel systems set up in Grant County. More extensive solar installations have a greater cost, yet they also offer higher electricity savings and more generous income tax credits.
The solar panel cost calculator below and to the right breaks down costs and benefits, using an average $105.96 electric bill in Grant County If you seek tailored results, modify the $105.96 to your average electricity bill amount.
System Size
Roof Size Min. space required
Electricity Value Annual Production
Est. Price
System Size 10kW
Roof Size Min. space required
715 ft²
Electricity Value Annual Production $892 a year
Est. Price
$25,690
Savings from a 10kWthis system
Est. yearly production 14,860 kWh
Est. monthly savings $74
Full payback in 20 years
Environmental Impacts
Reduces CO2 emissions by 0 tons a year
Equivalent to planting 0 trees a year
Equivalent to driving 0 mi less a year
System Size 11kW
Roof Size Min. space required
787 ft²
Electricity Value Annual Production $981 a year
Est. Price
$28,259
Savings from a 11kWthis system
Est. yearly production 16,346 kWh
Est. monthly savings $82
Full payback in 22 years
Environmental Impacts
Reduces CO2 emissions by 0 tons a year
Equivalent to planting 0 trees a year
Equivalent to driving 0 mi less a year
System Size 12kW
Roof Size Min. space required
858 ft²
Electricity Value Annual Production $1,070 a year
Est. Price
$30,828
Savings from a 12kWthis system
Est. yearly production 17,832 kWh
Est. monthly savings $89
Full payback in 24 years
Environmental Impacts
Reduces CO2 emissions by 0 tons a year
Equivalent to planting 0 trees a year
Equivalent to driving 0 mi less a year
System Size 13kW
Roof Size Min. space required
930 ft²
Electricity Value Annual Production $1,159 a year
Est. Price
$33,397
Savings from a 13kWthis system
Est. yearly production 19,319 kWh
Est. monthly savings $97
Full payback in 26 years
Environmental Impacts
Reduces CO2 emissions by 0 tons a year
Equivalent to planting 0 trees a year
Equivalent to driving 0 mi less a year
System Size 14kW
Roof Size Min. space required
1,001 ft²
Electricity Value Annual Production $1,248 a year
Est. Price
$35,966
Savings from a 14kWthis system
Est. yearly production 20,805 kWh
Est. monthly savings $104
Full payback in 28 years
Environmental Impacts
Reduces CO2 emissions by 0 tons a year
Equivalent to planting 0 trees a year
Equivalent to driving 0 mi less a year
Grant County Solar Panel Installation Incentives & Rebates | 2025
Rural farmers and small business owners could have between 80% and 100% of their solar energy or wind turbine installation expenses covered by the REAP Grant. Believe you might be eligible? Verify your qualification with our REAP Grant eligibility tool.
The federal government offers a 30% tax credit for residential solar systems, rendering solar practical and sensible for a variety of homeowners. On top of that, there are many state and local incentives to further encourage the adoption of solar energy.
Washington provides 15 solar rebates and incentives from different utility companies 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 Grant County, WA?
If you expect to own your residence longer than the solar system's payback period, solar panels are a wise investment in Grant County. Over a 20 year time frame, a 5 kW solar system in Grant County, WA could save you an estimated $12,585.4, with the average break even time being 10 years.
The cost of not having solar panels in Grant County, WA
Without solar panels or another backup power source, you miss out on the previously noted savings and are fully dependent on your electric utility for electricity. Many recent news reports have highlighted that complete dependence on your utility is not always ideal.
On a yearly basis, the average number of outages per customer in Washington has been 1.13. On average, each outage lasts for 130.13 minutes. Major events like lightning strikes, vandalism, or overloaded power grids can considerably extend these durations.
Take a look at the info below to see the number of current electricity customers without power in Grant County.
A solar energy system, regardless of whether it has a backup battery or not, could help relieve the pressure of future power outages you may experience.
Power Outages
Currently, 0 customers are being tracked in Grant County.
What impacts the cost of solar panels in Grant County, WA?
Your Energy Needs - Even though larger solar panel systems are more expensive initially, the average price per watt decreases as the system size increases. Homeowners often find that installing a solar system that can replace their electric bill is highly beneficial. This method results in maximum savings.
Make & Model - Like other industries, the solar energy sector includes a range of solar panel brands and designs. The preferences for brand that your contractor has may make it crucial to choose a reputable installer. Opting for superior quality models can yield a greatly enhanced long-term experience for the buyer.
Solar Panel Type - It's understandable that monocrystalline panels are now the standard in the industry. Although the cost is higher, they deliver more energy. Many installers use these types of panels.
Your Property - Challenges like trees, sloping terrain, or additional considerations can increase the difficulty of installing solar panels. Solar installers currently typically use satellite imagery to evaluate your home and incorporate these factors into the initial cost estimate.
Labor Rates - The costs connected to the varying wages paid by companies to their employees are transferred to the consumers. Companies frequently garner higher reviews for their work and customer service when they offer better wages.
Permitting & Interconnection - Your final installation cost will be impacted by local permitting and utility interconnection fees, which change by area. Good local installers will incorporate these figures into your preliminary estimates to prevent any surprises.
See what solar panels cost in other Grant County cities
During August, 2025, the average price for solar panel installations in Grant County, WA is $3.67/W. The approximate cost of a 5 kW solar panel system in Grant County, WA, after deducting federal tax credits, is $12,845.
Washington offers 15 different rebates and incentives from a range of utilities and government organizations. Moreover, nearly everyone is eligible for the 30% federal income tax credit.
Cash payments offer the highest savings, yet several financing options now available for solar panels are financially beneficial as well. Installers will often include details on financing partners in the quotes they provide initially.
Yes, the average time to recoup the cost of 5 kW solar panels in Grant County, WA is 10 years, with homeowners saving an average of $12,585.4 on electricity over 20 years.
Savings from 
Environmental Impacts 
