Is solar worth it in South Dakota?

With an average payback period of 13.9 years and 25-year savings of $25,450, solar panels in South Dakota can be worthwhile depending on your situation.

How much do solar panels cost in South Dakota?

The average cost of a 6kW residential solar system in South Dakota is $14,200 before incentives and tax credits.

How much can I save with solar panels in South Dakota?

Homeowners in South Dakota save an average of $1,018 per year with solar panels, totaling approximately $25,450 over 25 years.

Solar Panel ROI in South Dakota

Is solar worth it in SD?

1.8x ROI Score

13.9 yrs Payback Period

$1,018 Annual Savings

Key Solar Metrics for South Dakota

Solar Irradiance	4.97 kWh/m²/day
Estimated Annual Production (6kW system)	8,486 kWh
Average Electricity Rate	$0.120/kWh
Average System Cost	$14,200
Estimated Annual Savings	$1,018/year
Payback Period	13.9 years
25-Year Savings	$25,450

South Dakota vs National Average

Solar Irradiance 4.97 kWh/m²/day +0.2% vs national avg

National Avg Irradiance 5.12 kWh/m²/day baseline

Payback Period 13.9 years Slower than average

How We Calculated This

Our solar ROI calculations use data from the National Renewable Energy Laboratory (NREL) PVWatts API, which models solar energy production based on location-specific solar irradiance, weather patterns, and panel tilt angles. We assume a standard 6kW residential system with south-facing panels at optimal tilt.

Electricity rates are sourced from the U.S. Energy Information Administration (EIA) and represent state-level residential averages. Annual savings are calculated by multiplying estimated production by the local electricity rate. The payback period divides system cost by annual savings. The ROI score represents total 25-year savings divided by system cost.

These estimates do not include federal tax credits (currently 30% ITC), state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period. Actual results vary based on roof orientation, shading, local weather, and utility rate changes.

Compare with Nearby States

North Dakota 15.9 yr payback $908/yr savings Minnesota 12.7 yr payback $1,151/yr savings Iowa 12.4 yr payback $1,110/yr savings Nebraska 13.6 yr payback $1,032/yr savings Wyoming 14.2 yr payback $1,017/yr savings Montana 14.7 yr payback $968/yr savings

Solar Outlook for South Dakota

South Dakota receives 4.97 kWh/m²/day — 0.2% above the national average. Lower electricity rates of $0.120/kWh extend the payback to 13.9 years, though the federal 30% ITC and state incentives can meaningfully improve the economics.

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