Cooperative Energy seeks approval in Mississippi to build 115-kV switching station

Cooperative Energy recently filed with the Mississippi Public Service Commission a petition for a certificate of public convenience and necessity in order to acquire the necessary sites and rights of way (ROWs) to build, maintain, and operate a 115-kV electric transmission switching station in Holmes County, Miss.

The switching station would have three line terminations, three 115-kV gas circuit breakers, protective relay systems, and communications systems, Cooperative Energy said, noting that the switching station’s estimated cost is $2.2m.

The proposed switching station would be located on the south side of an existing Delta Electric Power Association substation located along Mississippi Highway 17 in the SW 1/4 of the Section 5, Township 16 North, Range 3 East in Holmes County.

Cooperative Energy also said that an existing 115-kV transmission station with manually operated switches is currently located just east of that location, but it will be retired and demolished when the proposed facility is placed in service.

The purpose of the switching station is to provide increased reliability to an approximate 45-mile section of 115-kV transmission line that serves three Cooperative Energy member substations and two Entergy Mississippi, Inc., substations between Pickens and Greenwood. Cooperative Energy added that the proposed location is near the midpoint of that transmission section and is the recommended location of circuit breakers to split the transmission line to reduce exposure and increase reliability to those delivery point substations.

Cooperative Energy requested a waiver of a requirement of the Procedural Rules to allow it to not file with the petition a complete set of engineering plans and specifications for the proposed electric transmission switching station and substation facilities. Cooperative Energy said that upon request, it would make such complete set of engineering plans and specification available for review when such plans and specifications are completed and thereby available. Complete engineering plans and specifications do not exist; therefore, requiring such to be filed with the petition would be unreasonably burdensome and impractical, Cooperative Energy said.

About Corina Rivera-Linares 3286 Articles
Corina Rivera-Linares was TransmissionHub’s chief editor until August 2021, as well as part of the team that established TransmissionHub in 2011. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial from 2005 to 2011. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines.