The existing 1.5-mile transmission line through the City of Delavan between the Delavan Substation at 602 E. Wisconsin St. and the Bristol Substation at 6396 Mound Rd. will soon be upgraded from 69 kilovolts to 138 kilovolts. This work is part of the Rock River - Elkhorn conversion project, a larger, multi-year, multi-phase project to reinforce the transmission system through Rock and Walworth counties to ensure reliable electricity for the growing communities throughout the counties.
The Bristol Substation will ultimately be a critical 138-kilovolt connection to Darien and Elkhorn and beyond. Because the Bristol Substation is small and cannot be expanded to accommodate both 69-kV and 138-kV equipment, it will house only 138-kV equipment. Therefore, any transmission lines entering or leaving the substation, including the line to the Delavan Substation, must operate at 138 kV.
We will be replacing the existing wood poles with new ones and moving the existing conductors (wires) to the new wood poles. The new poles will be placed as close to the original pole location as possible.
Download the Bristol - Delavan Voltage Conversion Upgrade Q & A sheet.
For more information or to comment on this project, e-mail Mary Carpenter or call 1-866-899-3204, ext. 6922.
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New 138kV Pole
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Arrowhead-Weston