STATE OF MISSOURI

PUBLIC SERVICE COMMISSION

At a session of the Public Service Commission held at its office in Jefferson City on the 23^rd day of January, 2013.

In the Matter of Union Electric Company d/b/a )

Ameren Missouri’s Filing to Modify its Net ) File No. ET-2013-0351

Metering and Cogeneration Tariffs ) Tariff No. YE-2013-0313

ORDER APPROVING EXPEDITED TARIFF

Issue Date: January 23, 2013 Effective Date: January 24, 2013

On January 9, 2013, Union Electric Company, d/b/a Ameren Missouri issued a tariff that will modify the rates it pays for energy purchased from customers under its net metering and cogeneration programs. That tariff carries a thirty-day effective date of February 8. However, along with its tariff, Ameren Missouri filed a motion asking the Commission to approve the tariff on an expedited basis so it can go into effect on January 24.

Ameren Missouri’s motion for expedited treatment explains that expedited treatment is necessary because in a stipulation and agreement approved in its recent rate case, ER-2012-0166, Ameren Missouri agreed to file a new electric rate schedule by January 3 to combine its two current tariff schedules into a single tariff. When it combines the two existing tariff schedules it cannot have any tariff revisions pending. For that reason, Ameren Missouri asks the Commission to expedite its approval of this tariff so that it can be effective on January 24 and therefore can be included in the new combined electric rate schedule that must be filed before January 31.

On January 10, the Commission issued an order directing its Staff to file a recommendation regarding Ameren Missouri’s tariff. That order also required that any other party wishing to file a recommendation regarding that tariff do so no later than January 18. Staff filed its recommendation to approve the tariff on January 18. No other party has filed a recommendation regarding the tariff.

Staff’s recommendation explains that Ameren Missouri’s tariff increases the rates Ameren Missouri pays for energy purchased from customers with a qualifying facility or a net metering installation. Staff confirms that the changes to the tariff sheets are appropriate and advises the Commission to approve the tariffs to go into effect on January 24 as the company requests.

Based on Staff’s recommendation, the Commission will approve Ameren Missouri’s tariff to be effective on January 24, 2013.

THE COMMISSION ORDERS THAT:

1. Ameren Missouri’s Tariff No. YE-2013-0313, is approved to become effective on January 24, 2013. The specific tariff sheets approved are:

P.S.C. MO. No. 1

6^th Revised Sheet No. 2, Cancelling 5^th Revised Sheet No. 2

5^th Revised Sheet No. 9, Cancelling 4^th Revised Sheet No. 9

2^nd Revised Sheet No. 19, Cancelling 1^st Revised Sheet No. 19

2. This order shall become effective on January 24, 2013.

3. This file shall close on January 25, 2013.

BY THE COMMISSION

( S E A L )

Shelley Brueggemann

Acting Secretary

Gunn, Chm., Jarrett, R. Kenney, Stoll,

and W. Kenney, CC., concur.

Woodruff, Chief Regulatory Law Judge