Solar in South Dakota costs about $3.44 per watt, so the typical 8.07 kW system runs about $27,761 before incentives. The state has never had net metering, so almost all of that money comes back only through power you use at home, and the design of the system decides the outcome more than the panels do.
Size a South Dakota system to your daytime use
With no net metering, extra panels mostly earn a wholesale rate. Enter your ZIP code and we will size a system to your daytime load rather than your annual total.
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Never had it, no plans for it: South Dakota and net metering
This is not a reduced version, a successor tariff or a program that closed to new entrants. The Public Utilities Commission states plainly that South Dakota does not pay for solar at a net metered rate, and the legislature has repeatedly declined to require one. There is no deadline to beat and no pending case to wait for. The rules you install under today are the rules that have applied for years.
South Dakota and Tennessee are the only two states with no net-metering-style program at all.
SD PUC Solar FAQCommission-regulated utilities must connect a qualifying facility and buy its output at avoided cost: Xcel (as Northern States Power), Black Hills, NorthWestern, Otter Tail and MidAmerican.
SD PUC Compensation GuidanceRates for systems under 100 kW are filed with the Commission utility by utility. Ask your utility for its current filed rate before any quote assumes a number.
South Dakota is one market of fifty. The full national pricing picture shows where it lands.
Co-op members are a separate conversationThe PURPA duty binds Commission-regulated utilities. Sioux Valley and the other cooperatives set their own terms, so do not assume it applies to you.
Four places a South Dakota kilowatt-hour can go, and what each one earns
In a net-metering state the grid works like a free battery. In South Dakota the grid is a buyer paying wholesale. So what a kilowatt-hour is worth depends on where it ends up.
What each kilowatt-hour is worth to you
The 13.68¢ statewide average is context only. Each utility files its own retail rate and its own avoided-cost rate, and the avoided cost sits well under retail.
The design rule this writesMatch the system closely to what the house uses in daylight. Oversizing a little pays in a net-metering state. Here, every extra panel mostly sells at wholesale.
Sort the paperwork before switch-onPower exported with no interconnection agreement in place earns nothing. Treat the export rate as a small consolation, never as the plan.
Third-priciest installs in the country, with no export value to lean on
The cost side does not help. At $3.44 per watt, South Dakota is the third most expensive install market in the country, behind North Dakota and Nebraska. The output side is solid: each kilowatt of panels makes about 1,478 kWh a year around Sioux Falls.
17.0 years is the South Dakota ceiling, not the forecast
If every one of the 11,927 kWh replaced power bought at 13.68¢, the system would save about $1,632 a year and pay back in 17.0 years. No household without storage uses everything it makes at midday in June, so that is the best case.
Why a battery works harder hereValue only exists at the moment you use the power. A kilowatt-hour stored and used that evening is worth the full retail rate. The same kilowatt-hour exported earns avoided cost. That gap is wider than in a net-metering state.
Five South Dakota buyers the no-export rules work against
Think twice if one of these describes you or your quote:
- Your quote has a net metering line in it. There is no net metering in South Dakota. A proposal that models one is modeling a different state, and every number after it is wrong.
- Your house is empty in the daytime and you have no storage. This is the profile the state’s rules punish hardest, because the value only exists at the moment of use.
- You are counting on a specific export rate. Rates are filed per utility and no statewide figure exists. Get yours from Xcel, Black Hills or NorthWestern in writing.
- You cannot get three bids. In the third most expensive install market in America, price is the largest single number you control.
- You are a co-op member assuming PURPA applies. It binds Commission-regulated utilities. Sioux Valley and the other co-ops are a separate conversation.
None of that makes solar impossible here. A high daytime user with a big roof, a battery and a good price can still get there.
Compare bids in a thin South Dakota market
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More on South Dakota solar costs
Frequently asked questions
Does South Dakota have net metering?
No. The Public Utilities Commission states directly that South Dakota does not compensate solar generation at a net metered rate, and the legislature has repeatedly declined to mandate one. South Dakota and Tennessee are the only two states with no net-metering-style program at all.
How much do solar panels cost in South Dakota in 2026?
About $3.44 per watt installed, the third most expensive in the country as of March 1, 2026. The typical system is 8.07 kW, roughly $27,761 before incentives, producing around 11,927 kWh a year in Sioux Falls sun.
How do I get paid for extra solar power in South Dakota?
Through a PURPA qualifying facility agreement. Commission-regulated utilities, including Xcel, Black Hills, NorthWestern, Otter Tail and MidAmerican, must interconnect and purchase your output at avoided cost, with rates for systems under 100 kW filed per utility. There is no statewide figure, so ask your utility for its current filed rate rather than trusting a number from a website.
What is the solar payback period in South Dakota?
About 17.0 years if every kilowatt-hour displaces a purchase at 13.68¢, which is the ceiling rather than the expectation. Without storage no household consumes everything it generates at midday, so a realistic self-use share of 60% to 70% pushes the realistic figure past 20 years. Rates rise only 2.17% a year, so time closes that gap slowly.
Is a battery worth it in South Dakota?
It does more financial work here than in most states, because value only exists at the moment you use the power. With no net metering, a kilowatt-hour stored and used that evening is worth the full 13.68¢ retail rate, while the same kilowatt-hour exported earns a wholesale-level avoided cost. That is a wider gap than a net-metering state produces.
How we calculate these costs
Cost figures use South Dakota’s entry in the EcoGen Solar Cost Index (v2 method), $3.44 per watt as of March 1, 2026. Payback is modeled with no federal residential credit for owner-purchased systems, no net metering, rate growth at the state 5-year average of 2.17%, 0.5% yearly panel degradation and a 25-year horizon. The 17.0-year figure assumes every kilowatt-hour is used at home and is shown as a ceiling, with the realistic range stated separately. No export rate is quoted because no statewide figure exists on the public record.
Sources (6)
- South Dakota Public Utilities Commission, Solar FAQ (accessed June 10, 2026): puc.sd.gov
- South Dakota Public Utilities Commission, Compensation Guidance (accessed June 10, 2026): puc.sd.gov
- U.S. EIA, Electric Power Monthly, Table 5.6.A, March 2026 edition (accessed June 10, 2026): eia.gov
- U.S. EIA, Form EIA-861 Annual Electric Power Industry Report, 2024 (accessed June 10, 2026): eia.gov
- U.S. Census Bureau, American Community Survey, 2024 (accessed June 11, 2026): census.gov
- IRS, One, Big, Beautiful Bill Provisions, Public Law 119-21 (accessed August 15, 2026): irs.gov
