State ex rel. Union Electric Co. v. Public Service Commission

CYNTHIA L. MARTIN, Judge.

Union Electric Company d/b/a Ameren Missouri (“Ameren”) appeals from the Public Service Commission’s (“PSC”) report and order that required Ameren to refund $17,169,838 to its ratepayers following prudence review of a rate adjustment under a fuel adjustment clause. The PSC concluded that Ameren acted imprudently, improperly, and unlawfully in failing to treat revenues it received from two power sales contracts as off-system sales for purposes of calculating the rate adjustment. Ameren argues that the PSC erroneously interpreted the definition of “off-system sales” in…