At a session of the Public Service Commission held at its office in Jefferson City on the 19th day of June, 2013.



In the Matter of Ameren Missouriís 2013††††††††† )††††††††

Integrated Resource Plan Annual Update†††††† )†††††††† File No. EO-2013-0424

Report††††††††††††††††††††††††††††††††††††††††††††††††††††††††††† )††††††††






Issue Date:June 19, 2013


The Commissionís Electric Utility Resource Planning Rule requires each Missouri electric utility to submit an annual update to its triennial compliance filing in each year for which it is not required to submit a new triennial compliance filing.[1]Union Electric Company, d/b/a Ameren Missouri made a triennial compliance filing in 2011 and its next triennial compliance filing is due in 2014.[2]As required by the regulation, Ameren Missouri filed an Integrated Resource Plan Update and conducted an annual update workshop.The company filed a required summary report regarding that workshop on April 15, 2013.[3]

The regulation allows stakeholders to file comments regarding the utilityís annual update report and summary report within thirty days after the utility files the summary report.[4]The Missouri Department of Natural Resources (MDNR), the Sierra Club, and the Natural Resources Defense Council (NRDC) each filed comments regarding Ameren Missouriís annual update report and workshop summary report.

MDNRís comments, which were filed on May 15, praise Ameren Missouri for having done a thorough job in updating its 2011 IRP, for making appropriate adjustments in its forecasts to account for changes in natural gas prices and forecast load, and for addressing the special contemporary issues previously established by the Commission.Overall, MDNR commended Ameren Missouri for ďa very useful report and an informative and productive stakeholder update sessionĒ.

Sierra Club and NRDCís comments, separately filed on May 15, express concern that Ameren Missouriís annual update does not contain sufficient analysis of changing conditions and fails to address unresolved issues from the companyís 2011 IRP filing.Both Sierra Club and NRDC ask Ameren Missouri to address their concerns in its 2014 IRP filing.

Ameren Missouri responded to the comments on May 28.The company acknowledges the issues identified by Sierra Club and NRDC and represents that it will address all those issues in its 2014 triennial IRP filing.

Ameren Missouri has complied with the requirements of the regulation and there is no need for further decision or action by the Commission at this time.Therefore, the Commission will close this file.






Morris L. Woodruff




R. Kenney, Chm., Jarrett and W. Kenney, CC., concur.

Stoll, C., absent.


Woodruff, Chief Regulatory Law Judge

[1] Commission Rule 4 CSR 240-22.080(3).

[2] Commission Rule 4 CSR 240-22.080(1)(C).

[3] Commission Rule 4 CSR 240-22.080(3)(C).

[4] Commission Rule 4 CSR 240-22.080(3)(D).