An Otter Tail Company

Minnesota rate case process

Tentative schedule

Public Utilities Commission approval required

Otter Tail Power Company is a regulated utility, which means the Minnesota and South Dakota Public Utilities Commissions and the North Dakota Public Service Commission approve the amount we charge customers for producing and delivering their electricity.

Request submitted in 2007

On October 1, 2007, we submitted a request to the Minnesota Public Utilities Commission for an increase in electric base rates in Minnesota only. For more detail, see our Minnesota rate case overview (pdf).

Interim rates will take effect

On November 16, 2007, the Commission voted to approve our request to increase rates by about 5.4 percent on an interim, or temporary, basis for all Minnesota customers' electric consumption on and after November 30, 2007. Interim rates remain in effect until the commission decides the case, which is expected to occur by August 1, 2008. If final rates are lower than interim rates, we will refund customers the difference with interest. If final rates are higher than interim rates the higher rates will become effective only as of the date in the commission's order.

Tentative schedule

10-1-2007 Petition - rate case filed with Minnesota Public Utilities Commission
List of documents filed with MN PUC
11-30-2007 Interim rates begin
Through early 2008 Information exchange
Spring 2008 Public hearings
Spring 2008 Evidentiary hearings
August 2008 Commission expected to make final decision
Approx. 60 days after order Final rates implemented