The Missouri Public Service Commission has approved an agreement that authorizes AmerenUE to participate in the Midwest Independent Transmission System Operator (MISO) through a contractual agreement with GridAmerica, LLC.

According to the application, GridAmerica will be comprised of Ameren Services Company, as agent for its operating companies AmerenUE and Central Illinois Public Service Company d/b/a AmerenCIPS, American Transmission Systems, Incorporated, a transmission subsidiary of FirstEnergy Corp., and Northern Indiana Public Service Company. According to AmerenUE’s application, the formation and participation of GridAmerica will add 4 million customers to the MISO.

AmerenUE stated in its application that GridAmerica will enable greater connectivity between load centers in the MISO that will set the stage for service innovations while minimizing to the greatest extent possible, costs to customers, a benefit to AmerenUE and its customers.

The agreement approved by the commission contains a number of conditions. Those conditions include the commission continuing to have jurisdiction to determine the transmission component of AmerenUE’s rates serving its bundled retail load. In addition, the agreement provides that AmerenUE will not divest itself of any of its transmission assets, nor securitize any of its transmission assets without approval from the commission.

As part of the agreement, commission approval is “interim” for a five-year period. After a period of approximately three-and-a-half years, the commission will automatically be entitled to reconsider the issue of AmerenUE’s RTO affiliation beyond the five-year termination date, examining the benefits and costs.