Arkansas Electric Cooperative Corporation (AECC) on Nov. 21 filed with the Arkansas Public Service Commission (APSC) an application for a certificate of public convenience and necessity (CCN) to build, own, and operate a 6.2-mile, 115-kV transmission line in Pulaski County, Ark., to serve AECC’s member, First Electric Cooperative Corporation (FECC).
The line is needed to connect two distribution substations – the Olmstead and Zion Hill substations – and in so doing, close a transmission loop. AECC also said that the line is needed to improve service reliability to FECC and its members to better serve its expanding loads in Pulaski and Faulkner counties.
Currently, AECC supplies FECC at 115-kV from the Olmstead 115-13.2-kV substation and at 115-kV at the Ward 115-69-13.2-kV substation. The Olmstead substation is supplied off an existing AECC 115-kV transmission line, which is 2.2 miles long and originates at the Cato 115-kV switching station, AECC added. The Ward substation is supplied off the existing electric grid in the area owned and operated by Entergy’s (NYSE:ETR) Entergy Arkansas Inc., and is more than 15 miles away from the Olmstead area, AECC said.
The line would extend from the east side of the Olmstead substation in a generally easterly-northeasterly direction to the Zion Hill substation. AECC also said that it determined that the best and most economical solution to provide the needed additional reliability is to build the new line to connect the Olmstead and Zion Hill substations, which would “close a transmission loop” and provide improved service reliability for the members of FECC served out of those substations and the Mountain Springs substation.
AECC also said that the line would be located on private rights of way upon acquisition by AECC of appropriate easements and permits by agreement with property owners or through condemnation.
The desired in-service date is June 1, 2018, for the line, which is estimated to cost $4.5m, AECC said.