PR-11-107 -- Change To Ameren Missouri Electric Fuel Adjustment And Purchased Power Charge Approved

Contact: Kevin Kelly (573) 751-9300

FOR IMMEDIATE RELEASE -- JANUARY 13, 2011

JEFFERSON CITY---The Missouri Public Service Commission has approved a request filed by Union Electric Company d/b/a Ameren Missouri to adjust the fuel and purchased power adjustment charge (FAC) on the bills of its electric customers.

 In its filing, Ameren Missouri stated the proposed adjustment to customer rates reflected changes in its fuel and purchased power costs net of off-system sales revenues experienced during the four month period ending September 30, 2010. Ameren Missouri stated the factors driving the increase were lower off-system sales revenue partially offset by lower fuel and purchased power costs.

Base electric rates set in the last Ameren Missouri rate case reflect a certain level of fuel and purchased power costs less off-system sales revenue. The FAC reflects increases or decreases in those costs above or below those set in base rates. The FAC is designed to address fuel and purchase power costs and off-system sales revenue volatility. 

The adjustment will raise the Rider FAC Adjustment for a residential customer using 1,100 kWh per month by approximately $1.24 a month effective January 26, 2011.

On December 22, 2010, the PSC staff recommended the tariff be approved. Staff indicated Ameren Missouri’s tariff complies with the Commission’s order that established the company’s FAC and with all applicable statutes and regulations. No other party opposed the PSC staff recommendation, objected to the tariff, or requested a hearing.

 Ameren Missouri serves approximately 1.2 million electric customers in Missouri.

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Case No. ER-2011-0153