Summary
Ameren Corporation, through its subsidiary Ameren Missouri, has officially filed a request with the Missouri Public Service Commission (MoPSC) to increase its annual electric service revenues by $264 million. This rate case aims to recover significant investments in electric infrastructure totaling $1.4 billion, alongside increased net energy costs and rebates for customer-installed solar generation. Key investments include upgrades to environmental controls at the Labadie energy center, a new reactor vessel head for the Callaway energy center, new substations in St. Louis, and the O'Fallon solar facility. The proposed rate increase is based on a 10.4% return on equity, a capital structure of 51.6% equity, and a rate base of $7.3 billion. Ameren Missouri is also seeking to continue utilizing existing regulatory mechanisms for fuel and purchased power costs (FAC), storm costs, vegetation management, pension benefits, and tax positions. The MoPSC is expected to make a decision on this rate case by May 2015, with potential rate adjustments effective in June 2015.
Key Highlights
- 1Ameren Missouri filed a request on July 3, 2014, to increase annual electric service revenues by $264 million.
- 2The rate increase seeks to recover $1.4 billion in electric infrastructure investments and increased net energy costs.
- 3Significant infrastructure investments include environmental upgrades at Labadie, nuclear reactor replacement at Callaway, new substations, and a new solar facility.
- 4The filing proposes a 10.4% return on equity and a rate base of $7.3 billion, using a test year ending March 31, 2014.
- 5Ameren Missouri is requesting continued use of the Fuel and Purchased Power Cost Adjustment (FAC) mechanism and other regulatory tracking mechanisms.
- 6A decision from the Missouri Public Service Commission (MoPSC) is anticipated by May 2015, with potential rate changes effective June 2015.