Missouri regulatory staff recommends approval, subject to conditions, of 345-kV switch station

The Missouri Public Service Commission (PSC), in a Sept. 22 order, directed Transource Missouri to respond to PSC staff’s recommendation involving the company’s proposed 345-kV interconnection switch station by Sept. 30.

As TransmissionHub reported, Transource Missouri in July filed an application with the PSC seeking an order declining jurisdiction, or, in the alternative, granting a certificate of convenience and necessity (CCN) that would authorize the company to own, operate and maintain the switch station in DeKalb County, Mo., that would connect the Osborn Wind Energy Center with Transource Missouri’s Sibley–Nebraska City 345-kV electric transmission line project.

The PSC said in its order that Transource Missouri is to respond to staff’s recommendation calling for the PSC to approve the company’s application, subject to certain conditions. The company is to indicate whether staff’s recommended conditions are acceptable, the PSC said.

As noted in staff’s memorandum recommendation, the switch station is necessary to connect Transource Missouri’s portion of the Sibley–Nebraska City 345-kV electric transmission line, currently under construction, from GMO’s Sibley generating station in Jackson County, to the new Mullin Creek substation in Nodaway County, and then from the Mullin Creek substation to the Missouri River crossing in Holt County, interconnecting with Osborn Wind Energy Center LLC’s 200.1-MW wind project in DeKalb County.

Transource Missouri has noted that while it will ultimately own, operate and maintain the switch station, Osborn Wind will build and pay for the switch station and contribute the switch station and the land on which is is located to Transource Missouri, which will not increase Transource Missouri’s FERC-regulated rate base.

Staff added that the estimated cost of the switch station and the associated interconnection facilities that will be transferred and contributed to Transource Missouri from Osborn Wind without payment by Transource Missouri to Osborn Wind is about $16.8m. Transource Missouri will build and own additional network upgrades costing about $2.1m, which will be paid for by Osborn Wind, staff said. There is yet another $1m of interconnection facilities that are to be maintained, owned, and/or controlled by Transource Missouri at Osborn Wind’s sole expense, staff said.

According to Transource Missouri, its portion of the Sibley–Nebraska City Project, which is located entirely within Missouri, is under construction and has an expected in-service date of Dec. 31, staff said.

Staff said that it recommends to the PSC that as a condition of granting Transource Missouri a CCN in the proceeding, Transource Missouri should file on an annual basis its current “FERC Financial Report FERC FORM No. 1 Annual Report of Major Electric Utilities” with the PSC at the same time that it makes its annual filing with FERC.

Staff also said that Transource Missouri has not filed plans and specifications for the complete construction project and as a result, staff proposes that as a condition of granting Transource Missouri a CCN, the company should agree to file with the PSC, as soon as they are available, the final engineering deliverables, including design packages, procurement delivery schedules, and construction contract bid technical specifications.

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.