Public Utility Commission of Texas staff on March 15 said that it recommends that the commission approve – subject to certain measures – the City of Garland’s application for construction of the new, approximately five-mile King Mountain to Roadrunner Single Circuit 345-kV Transmission Line in Upton County.
As staff noted, the City of Garland filed its application to amend its certificate of convenience and necessity (CCN) in January.
As TransmissionHub reported, Garland d/b/a Garland Power & Light (GP&L) said that it is proposing to design and build the line – on steel monopole structures – to connect a new transmission service customer, Roadrunner Solar Project, LLC, which has requested Garland to interconnect at its to-be-built Roadrunner substation at 345 kV to provide interconnection service to its planned 400-MW solar generation project.
The new line would extend from the proposed King Mountain switching station, located south of, and adjacent to, GP&L’s existing North McCamey to Odessa 345-kV transmission line, about 0.3 miles east of Ranch-to-Market (RM) 2463, and the proposed Roadrunner substation located along Private Road (PR) 480 about 2.75 miles west of RM 2463.
The new King Mountain 345-kV switching station would be owned by the City of Garland, while the new Roadrunner substation would be owned by the generator, Roadrunner Solar Project, LLC, and would be the other terminus for the project.
In a March 15 memorandum to Steven Gonzalez, Legal Division, that was attached to staff’s filing, Blake Ianni of the commission’s Infrastructure & Reliability Division said that the commission should approve the application and order Garland to comply with certain reporting requirements as well as to follow certain measures to mitigate construction impacts.
Those measures include that in the event that Garland or its contractors encounter any artifacts or other cultural resources during project construction, work is to cease immediately in the vicinity of the resource and the discovery is to be reported to the Texas Historical Commission.
Ianni also said that another measure calls for Garland to exercise extreme care to avoid affecting non-targeted vegetation or animal life when using chemical herbicides to control vegetation within the right of way. The measures also call for Garland to minimize the amount of flora and fauna disturbed during construction of the line, except to the extent necessary to establish appropriate ROW clearance for the line.
Ianni added that the measures also include that Garland is to cooperate with directly affected landowners to implement minor deviations in the approved route to minimize the impact of the line.
Among other things, Ianni noted that the estimated cost of the transmission facilities for the proposed route is about $6.3m, and that Garland’s King Mountain switching station facilities are estimated to cost about $14.9m, for an estimated total project cost of $21.2m.