SDCL § 49-34A-75: Review of reasonableness of rates under phase in rate plan--Adjustment.

At any time prior to one year after the conclusion of a phase in rate plan, the commission, upon its own motion or upon petition of the electric utility, may examine the reasonableness of the utility's rates under the plan, and adjust rates as necessary. Any phase in rate plan is subject to annual review. The electric utility shall file annually an abbreviated cost of service analysis showing that year's revenues, costs and revenue requirements, and a report of the progress of the construction or acquisition of the plant additions showing accumulative construction or acquisition costs for the year and updated cost projections to complete the plant additions.