South Dakota Solar Incentives, Cost & Policy (2026)
Written by Aditya Patil · Last updated 2026-09-24
Deciding to go solar in South Dakota requires understanding the local regulatory environment. With average electricity rates at 15.36¢/kWh and no mandatory statewide net metering, homeowners must look closely at their specific utility's policies and weigh the value of pairing solar with battery storage.
$133
Avg. monthly bill
15.36¢/kWh
Avg. electricity rate
7.0 kW
Est. system size
for avg. SD usage
None
Net metering
No state mandate
Cost and system sizing
The typical South Dakota household uses 10,411 kWh of electricity per year. Based on regional sunlight data, offsetting that usage completely requires a solar energy system of roughly 7.01 kW.
Currently, authoritative state-level residential solar pricing data for South Dakota from sources like the Lawrence Berkeley National Laboratory is insufficient or unavailable, meaning we cannot state a reliable statewide average cost per watt. Homeowners should request multiple localized quotes to understand their true upfront and net costs. Note that since the federal residential clean energy credit (§25D) does not apply to systems completed after the end of 2025, there is no federal purchase incentive reducing the net cost in 2026.
Incentives & property tax benefits
South Dakota does not offer state-level cash rebates or a sales tax exemption for solar equipment. However, the state does provide a valuable property tax incentive to ensure your local tax burden doesn't spike just because you made a clean energy improvement.
| Program | Amount / Benefit | Status |
|---|---|---|
| Renewable Energy Property Tax Exemption | The first $50,000 or 70% of the assessed value of the solar energy system, whichever is greater, is exempt from real property tax. | open |
Net metering and export rates
South Dakota is one of several states without a statewide net metering mandate. The South Dakota Public Utilities Commission (PUC) has not adopted rules forcing utilities to buy back excess solar power at favorable rates, and the state legislature has routinely declined to implement them.
Because there is no standard mandate, your solar export compensation depends entirely on your utility provider. While some investor-owned providers (such as NorthWestern Energy) offer voluntary net metering programs for small residential systems, excess energy is typically compensated at an "avoided-cost" or wholesale rate. This rate is substantially lower than the retail price you pay for electricity, meaning you get pennies on the dollar for the power you send back to the grid. Check directly with your local utility for their current interconnection rules and compensation tariffs.
Top utilities in South Dakota
| Utility | Avg. residential rate | Customers |
|---|---|---|
| Northern States Power Co - Minnesota | 13.87¢/kWh | 92,204 |
| Black Hills Power, Inc. | 14.37¢/kWh | 60,951 |
| NorthWestern Energy - (SD) | 12.56¢/kWh | 51,467 |
Residential rates and customer counts are sourced from EIA-861 data (see Data sources below). Rates vary significantly by provider and location.
Batteries & VPP programs
South Dakota currently lacks statewide Virtual Power Plant (VPP) initiatives or specific battery rebate programs. However, because local utilities often compensate exported solar power at very low avoided-cost rates, investing in a home battery can be advantageous. A battery allows you to store excess daytime solar production and use it yourself during the evening, maximizing your return on investment rather than essentially giving your power away to the utility.
Leasing vs. Buying
Since the residential clean energy credit (§25D) doesn't apply to homeowners purchasing systems after 2025, third-party ownership options like leases and Power Purchase Agreements (PPAs) may look more appealing. Under a lease, the solar company retains ownership of the panels and can claim the commercial investment tax credit (§48E), often passing a portion of those savings on to you in the form of lower monthly payments. Review our solar lease vs. buy guide for a comprehensive breakdown.
Estimate your own numbers
You can use our solar calculator with your specific usage and quotes to evaluate your potential savings in South Dakota.
FAQ
Does South Dakota have a statewide net metering program?
No. South Dakota does not mandate net metering for its utility companies. While a few investor-owned utilities (like NorthWestern Energy) offer voluntary programs for systems up to 50 kW, they usually credit excess generation at an avoided-cost or wholesale rate, rather than the 1:1 retail rate seen in states with strong mandates.
Are there any solar incentives specific to South Dakota?
South Dakota offers a Renewable Energy Property Tax Exemption. This ensures that the first $50,000 or 70% of the assessed value of a solar energy system (whichever is greater) is excluded from real property taxes. There are currently no statewide cash rebates or sales tax exemptions.
Is a solar battery worth it in South Dakota?
Because South Dakota utilities typically credit exported solar energy at low wholesale rates rather than full retail rates (which average 15.36¢/kWh statewide), storing your own excess daytime energy in a battery for evening use can make more financial sense than sending it to the grid for pennies.
Data sources
Last updated 2026-09-24
- U.S. Energy Information Administration — Electricity Data Browser — accessed 2026-09-24
- NREL PVWatts — accessed 2026-09-24
- NREL Solar Resource Data — accessed 2026-09-24
- LBNL Tracking the Sun (public data file, host-owned residential systems) — accessed 2026-09-24
Written by Aditya Patil