Solar panels installed on a residential home in Missouri

Solar Panel Cost in Missouri

Updated 2026 guide to solar panel prices, savings, and payback period in Missouri.

Estimated Solar Savings

$2.85Cost Per Watt
$17,100Avg. System Cost
9Year Payback
$27,00025-Year Savings

Solar Panel System Costs in Missouri

Below are estimated costs for different solar panel system sizes in Missouri, including the 30% federal solar tax credit.

System SizeCost Before IncentivesFederal Tax Credit (30%)Net CostEst. Annual Production
4 kW$11,400-$3,420$7,9806,278 kWh
6 kWMost Popular$17,100-$5,130$11,9709,417 kWh
8 kW$22,800-$6,840$15,96012,556 kWh
10 kW$28,500-$8,550$19,95015,695 kWh
12 kW$34,200-$10,260$23,94018,834 kWh

What Affects Solar Panel Cost in Missouri?

The average cost of solar panels in Missouri is $285/watt before incentives. For a typical 6kW residential system, that means a total cost of about $17,100 before the federal tax credit.

After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $11,970.Missouri homeowners typically see a payback period of 9 years and save an estimated $27,000 over 25 years.

Missouri solar costs have decreased approximately 40% over the last decade. Rebate programs from utilities like Ameren have helped drive residential solar growth.

Factors that affect your cost:

  • System size: Larger systems cost more but have a lower cost per watt
  • Equipment quality: Premium panels and inverters cost more but offer better efficiency
  • Roof complexity: Steep roofs, multiple levels, or shading can increase installation costs
  • Local labor rates: Installation costs vary by region within Missouri
  • Incentives: State and local programs can significantly reduce your out-of-pocket cost
Beautiful home with solar panels in Missouri demonstrating residential solar installation

Solar Incentives in Missouri

Federal Solar Investment Tax Credit

30% Federal Tax Credit (ITC)

Missouri homeowners can take advantage of the 30% federal ITC along with utility-specific rebate programs.

30%

State & Local Incentives

Ameren Missouri Solar Rebate

Rebate

Ameren Missouri offers rebates for residential solar installations in their service territory.

$0.25/W up to $2,500

Property Tax Exemption

Property Tax

Missouri exempts solar energy systems from real property tax assessments.

100% property tax exemption on solar value

Net Metering

Missouri requires investor-owned utilities to offer net metering for systems up to 100 kW. Customers receive credits at the retail rate.

Available

SRECs

Missouri's Renewable Energy Standard includes a solar carve-out, but the state does not have an active SREC trading market for residential customers.

Not Available
View all Missouri solar incentives →

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Top Solar Companies in Missouri

Affordable Solar Roof & Air

4.9(721 reviews)

Years in Business: 14

Service Area: Kansas City

Phone: (800) 515-1254

Sunergy Solutions LLC

4.9(146 reviews)

Years in Business: 6

Service Area: Kansas City

Phone: (603) 289-1090

Green Power Energy

4.8(406 reviews)

Years in Business: 17

Service Area: Kansas City

Phone: (855) 525-1675

Blue Raven Solar

4.5(1983 reviews)

Years in Business: 10

Service Area: Missouri

Phone: (844) 442-5029

Purelight Power

3.7(153 reviews)

Years in Business: 8

Service Area: Missouri

Phone: (541) 816-4047

View all Missouri solar companies →

Solar Panel Cost FAQ - Missouri

The cost of solar panels in Missouri typically ranges from $2.50 to $3.50 per watt before incentives. For a standard 6 kW residential system, homeowners in Missouri can expect to pay between $15,000 and $21,000 before the federal tax credit. After applying the 30% federal Investment Tax Credit, the net cost drops to approximately $10,500-$14,700. Actual costs vary based on your specific roof, chosen equipment, and installer. We recommend getting at least three quotes from local Missouri solar installers to find the best price.

The average solar payback period in Missouri depends on local electricity rates, available incentives, and sun exposure. Most Missouri homeowners see a payback period between 6 and 10 years. After the payback period, you essentially enjoy free electricity for the remaining 15-20+ years of your system's life. Higher local electricity rates and additional state incentives can shorten the payback period significantly. A qualified Missouri solar installer can calculate your specific payback period based on your energy usage and roof characteristics.

Missouri homeowners who install solar panels typically save between $20,000 and $50,000 over 25 years, depending on system size, electricity rates, and available incentives. These savings come from reduced or eliminated electricity bills, net metering credits, and any applicable SREC income. As electricity rates in Missouri continue to rise (historically averaging 2-3% annually), your savings grow each year. The combination of the 30% federal tax credit and any Missouri-specific incentives helps maximize your return on investment.

The right solar system size for your Missouri home depends on your electricity consumption, roof space, and budget. The average Missouri home uses approximately 10,000-11,000 kWh per year, which typically requires a 6-8 kW solar system. To determine your ideal size, review your annual electricity usage on recent utility bills. Factors like Missouri's average peak sun hours, your roof orientation, and any shading will affect how many panels you need. A professional Missouri solar installer will use satellite imagery and your usage data to recommend the optimal system size.

Yes, solar is generally worth the investment for Missouri homeowners in 2025. With solar panel costs at historic lows, the 30% federal tax credit still available, and electricity rates continuing to rise, the financial case for solar in Missouri is strong. Most Missouri homeowners who go solar see positive returns within 6-10 years, followed by 15-20+ years of significant savings. Additionally, solar panels increase your home value, provide energy independence, and protect against future electricity rate increases. The best way to determine if solar is right for your Missouri home is to get a free, customized quote from a qualified local installer.

Solar Panel Costs by City in Missouri

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30%Federal Tax Credit
25+Year Savings
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