The Maryland Public Service Commission (PSC) on April 17 granted Baltimore Gas and Electric’s (BGE) request for a waiver related to work on an existing 230-kV overhead transmission line in Prince George’s County, Md.
In a March 29 filing, BGE requested that the PSC determine either that a waiver of the requirement to obtain a certificate of public convenience and necessity (CPCN) is not required to perform the maintenance and repair work, or waive the requirement to obtain a CPCN under the CPCN waiver provision in connection with the work.
BGE is looking to reconductor a section of the line to address a potential reliability concern identified by PJM Interconnection. PJM has determined that the issue, on a stretch of the existing line between the Sandy Spring substation and the Burtonsville substation in Prince George’s County, must be corrected before the 2013 summer loading period.
Specifically, PJM has determined that the loss of Circuit No. 2314 will cause an overload on Circuit No. 2334 and vice-versa, BGE added.
In order to avoid such potential reliability concerns, BGE must replace an existing single 1,590 KCM 45/7 ACSR conductor that runs about 1,050 feet from Tower 66E adjacent to the Sandy Spring substation to deadend structures at the Burtonsville substation with double-bundled 1033 KCM 45/7 ACSR conductors.
Among other things, BGE also said in its filing that it will not replace any overhead transmission tower or pole structures as part of the project, and the circuits will remain at the same voltage – 230 kV – after project completion.
Construction on the project is scheduled to begin on April 22.
In its letter order, the PSC said that after considering the matter at its April 17 administrative meeting, it waives the requirement to obtain a CPCN for the project.
The PSC made a similar decision on April 3 concerning BGE’s existing 115-kV overhead transmission line in Anne Arundel County, Md.
BGE is a subsidiary of Exelon (NYSE:EXC).