S.D. Codified Laws § 10-35-19
Any company owning or holding under lease, or otherwise, real or personal property used, or intended for use, as a wind farm producing power for the first time on or after July 1, 2007, and prior to April 1, 2015, shall pay an annual tax of $.00065 per kilowatt hour of electricity produced by the wind farm. The owner of a wind farm subject to tax shall file a report with the secretary detailing the amount of electricity in kilowatt-hours that was produced by the wind farm for the previous calendar year. The secretary shall prescribe the form of the report. The tax for the electricity produced in a calendar year shall become due and be payable to the secretary on the first day of February of the following year. Except as otherwise provided in §§ 10-35-16 to 10-35-21, inclusive, the provisions of chapter 10-59 apply to the administration of the tax.
SDCL 10-35-19