
Solar Panel Cost in South Dakota
Updated 2026 guide to solar panel prices, savings, and payback period in South Dakota.
Estimated Solar Savings
Solar Panel System Costs in South Dakota
Below are estimated costs for different solar panel system sizes in South Dakota, including the 30% federal solar tax credit.
| System Size | Cost Before Incentives | Federal Tax Credit (30%) | Net Cost | Est. Annual Production |
|---|---|---|---|---|
| 4 kW | $11,600 | -$3,480 | $8,120 | 6,570 kWh |
| 6 kWMost Popular | $17,400 | -$5,220 | $12,180 | 9,855 kWh |
| 8 kW | $23,200 | -$6,960 | $16,240 | 13,140 kWh |
| 10 kW | $29,000 | -$8,700 | $20,300 | 16,425 kWh |
| 12 kW | $34,800 | -$10,440 | $24,360 | 19,710 kWh |
What Affects Solar Panel Cost in South Dakota?
The average cost of solar panels in South Dakota is $290/watt before incentives. For a typical 6kW residential system, that means a total cost of about $17,400 before the federal tax credit.
After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $12,180.South Dakota homeowners typically see a payback period of 10 years and save an estimated $24,000 over 25 years.
Solar costs in South Dakota have decreased roughly 36% over the past decade. Good sun exposure and no state income tax provide a straightforward solar value proposition.
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 South Dakota
- Incentives: State and local programs can significantly reduce your out-of-pocket cost

Solar Incentives in South Dakota
Federal Solar Investment Tax Credit
30% Federal Tax Credit (ITC)
South Dakota homeowners can claim the 30% federal ITC. With no state income tax, the federal credit is the primary tax incentive.
State & Local Incentives
Property Tax Exemption
Property TaxSouth Dakota provides a property tax assessment freeze for renewable energy systems installed on residential property.
Net Metering
South Dakota requires utilities to offer net metering for residential solar systems. Credits are provided for excess generation sent to the grid.
AvailableSRECs
South Dakota does not have an SREC market or a renewable portfolio standard. The state has voluntary renewable energy goals.
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Top Solar Companies in South Dakota
Affordable Solar Roof & Air
Sunergy Solutions LLC
Green Power Energy
GenPro Energy Solutions
Cleaner Greener Energies, Inc.
Solar Panel Cost FAQ - South Dakota
The cost of solar panels in South Dakota typically ranges from $2.50 to $3.50 per watt before incentives. For a standard 6 kW residential system, homeowners in South Dakota 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 South Dakota solar installers to find the best price.
The average solar payback period in South Dakota depends on local electricity rates, available incentives, and sun exposure. Most South Dakota 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 South Dakota solar installer can calculate your specific payback period based on your energy usage and roof characteristics.
South Dakota 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 South Dakota continue to rise (historically averaging 2-3% annually), your savings grow each year. The combination of the 30% federal tax credit and any South Dakota-specific incentives helps maximize your return on investment.
The right solar system size for your South Dakota home depends on your electricity consumption, roof space, and budget. The average South Dakota 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 South Dakota's average peak sun hours, your roof orientation, and any shading will affect how many panels you need. A professional South Dakota solar installer will use satellite imagery and your usage data to recommend the optimal system size.
Yes, solar is generally worth the investment for South Dakota 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 South Dakota is strong. Most South Dakota 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 South Dakota home is to get a free, customized quote from a qualified local installer.
Solar Panel Costs by City in South Dakota
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