Thursday, June 13, 2013
The Southwest Power Pool’s Ozark Transmission Study and its Notification to Construct (NTC) are included as exhibits to the testimony of SWEPCO witness Paul Hassink in proceedings filed with the Arkansas Public Service Commission.
Hassink said the Northwest Arkansas area had many overloads in the medium-load cases, a base-case overload on the Chamber Springs – Clarksville 345 kV line, and voltage instability in both heavy-load and hydro outage cases. “Based on the pattern of overloads in this area, it appears that large power sources are needed on the East and North sides of the area, and that additional 345 kV or 500 kV sources are needed to bring power into the area,” Hassink said. “The 345 kV loop around Northwest Arkansas and the new lines from Arkansas Nuclear One and from Springfield are intended to address this need.”
SWEPCO spokesman Peter Main said the NTC is the SPP’s instruction to SWEPCO to move forward with specific projects “alleviate associated reliability concerns.”
“The NTC directs SWEPCO to connect Centerton in Benton County with Osage Creek in Carroll County,” Main said. “The 345-kV Shipe Road Station, at the west end of the proposed line, is near Centerton. The proposed Kings River Station, at the east end of the proposed line, is near the existing Osage Creek Station (which is not capable of handling 345-kV but will handle 161-kV tie-in) between Eureka Springs and Berryville. SPP is not requiring a substation at East Rogers.”
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