Utility Commission Filings
Included below are certain Ameren regulatory filings. These filings were selected based on Ameren's judgment as to their relevance and importance. This list does not include all filings made by all Ameren companies.

Ameren is unable to predict the ultimate outcome of pending regulatory proceedings, the timing of the final decisions of the various agencies, or the impact on our results of operations, financial position or liquidity.
Select Filings with the Illinois Commerce Commission (ICC)
  • Ameren Illinois Electric Delivery Service Rate Case
    Case No. 14-0317
    Description: On April 17, 2014, Ameren Illinois filed a required rate update filing with the ICC. This filing, as updated, is based on 2013 actual costs and 2013 rate base plus 2014 expected net plant additions and proposes a $68 million annual rate increase. In addition, the filing reflects a $70 million surcharge related to under collection of 2013 costs and the absence of a $67 million credit related to over collection of 2012 costs, which is being refunded to customers in 2014. New rates are to be effective in January 2015.

  • Ameren Transmission Company of Illinois
    Case No. 14-0514
    Description: In August 2014, Ameren Transmission Company of Illinois filed with the ICC requesting a Certificate of Public Convenience and Necessity for its Spoon River transmission project. We expect an ICC decision in mid-2015.

Find other filings and information on the Illinois Commerce Commission website.

Select Filings with the Missouri Public Service Commission (MoPSC)

  • Ameren Missouri Electric Service Rate Case
    Docket No. ER-2014-0258
    Description: On July 3, 2014, Ameren Missouri filed a request with the MoPSC seeking approval to increase its annual revenues for electric service by $264 million. The rate request seeks recovery of increased net energy costs and rebates provided for customer-installed solar generation, as well as recovery of and a return on additional electric infrastructure investments made for the benefit of customers. A decision by the MoPSC is expected by May 2015 with rates effective by June 2015.
Find other filings and additional information on the Missouri Public Service Commission website.

Select Filings with the Federal Energy Regulatory Commission

  • Complaint challenging Midcontinent Independent System Operator, Inc. (MISO) base return on equity.
    Docket No. EL14-12
  • Ameren Illinois electric transmission case related to acquisition premiums.
    Docket No. AC11-46 

Find additional information on the Federal Energy Regulatory Commission website.
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