Solar Panel Cost in South Dakota (2026)
Installed solar in South Dakota runs about $2.65 per watt — roughly 3% above the national average of $2.58/W. With the federal residential tax credit (25D) gone as of 2026, payback here rests on a $0.13/kWh power price and 4.7 daily peak sun hours.
Worked example: a typical $150/month home in South Dakota
A $150/month electric bill in South Dakota works out to about 13,846 kWh a year. Sizing a cash-purchase system to cover 100% of that:
System size
10.4 kW
Panels
26
Annual offset
103%
Gross cost
$30,060
Federal credit (25D)
$0
Expired 12/31/2025 — $0
State incentive
$0
Net cost
$30,060
Payback
13.4 yr
25-year savings
$37,434
Last updated June 30, 2026
South Dakota solar numbers
- Installed price
- $2.65 / watt
- Electricity price
- $0.13 / kWh
- Peak sun hours
- 4.7 hrs/day
- State incentive
- 0%
- Net-metering value
- 100% of retail
Local context: No statewide net-metering mandate means value varies by utility in South Dakota.
Estimate your own South Dakota system
Adjust the bill, ownership, and battery options below — it's pre-set to South Dakota's pricing and sun hours.
Estimated system cost
$35,374–$45,946
14.4 kW36 panels
Low $35kMost likely ~$40,660High $46k
Federal tax credit
— expired Dec 2025, we won't pretend otherwise
$0
State & utility incentives
$0
Est. annual savings
$2,569
Payback period
~13.2 yr
Net cost
$35k–$46k
25-year net savings
+$52,794
iA ballpark estimate for planning — not a final quote.
Optional · Free
Analyze my actual roof
Drop your address and we'll measure your real roof from satellite — for a sharper number.