Signed at your home in the last few days? Federal law gives you 3 business days to cancel most at-home sales. Get the free letter
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South Dakota solar help
South Dakota’s consumer protection law and the FTC rule apply to solar sold on the plains.
Last verified October 9, 2026
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The short answer: For South Dakota home sales, the FTC Cooling-Off Rule, 16 CFR Part 429, sets a three-business-day cancellation window. South Dakota’s deceptive trade practices law prohibits misleading sales. Ask South Dakota counsel about any added rights.
Mail your notice before the deadline and keep proof, especially if winter weather slows the mail.
South Dakota’s deceptive trade practices law reaches false savings and affiliation claims, enforced by the Attorney General.
Xcel Energy, Black Hills Energy and South Dakota’s cooperatives set their own approaches to customer solar. Request your provider’s terms.
South Dakota solar questions?
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South Dakota guides cover Sioux Falls, the Black Hills and beyond.
Common questions
Three business days under federal law.
Its deceptive trade practices and consumer protection law.
The South Dakota Attorney General.
Yes, it reduces winter output.
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Solar Cancellation HQ is not a law firm and does not provide legal advice. This page is general information, and reading it or submitting a form does not create an attorney-client relationship. Not every contract qualifies, and no outcome is guaranteed. We never advise anyone to stop making payments on a solar loan, lease or PPA. Laws and utility rules change, so verify before acting. Last verified October 9, 2026.