MPSC Electric Cost of Service Study Collaborative

On December 22, 2005, the Commission issued an Order in Detroit Edison's Case No. U-14399 and in Consumer Energy Company's Case No. U-14347 in which Staff was directed to work with Detroit Edison, Consumers, and other interested parties to develop a standardized Electric Cost of Service Study model that can be exchanged electronically and that provides sufficient flexibility to allow all parties to understand the bases for the data underlying the COSS.

On March 21, 2007, the Commission issued an Order closing the Collaborative and directing Detroit Edison and Consumers Energy to utilize the models developed in the Collaborative in each of their next rate case filings.

Consumers Energy filed a rate application on March 30, 2007, in Case No. U-15245 and Detroit Edison filed a rate application on April 13, 2007, in Case No. U-15244, both using the cost of service study models developed in the Collaborative.

Staff Report On the Cost of Service Study Collaborative
filed 2/26/07 (in Adobe pdf format)

Collaborative Documents (in Adobe pdf format)

Cost Of Service Study Models
(latest versions of Excel Files - 8 MB each)

DTE Energy

Consumers Energy