Lee 3 Gm 12.99 miles 2/0 Cu Bush River-Laurens EC 30 Bush River-Clinton-Laurens Reconductor Loading White 100 kV Line 1 Black 100 kV Line with [2026] (98.3 %) (Clinton) Clinton Tie Throwover Accelerated 19 Years (Clinton) $7,085,000 (Full Cost) 5% Reactors on Fiber Lee 3 Gm Anderson-Toxaway 100 kV Lines Anderson-Toxaway Loading 100 kV Line 2/1 [2033] 100 kV Line 1/2 (98.3 %) (Fiber) Accelerated 12 Years (Fiber) $804,000 (Full Cost) New Shady Grove Lee 3 Gm Transformer Capacity Shady Grove 230/100 kV Loading Shady Grove 230/100 kV [2032] Transformer 1 (92.0 %) Transformer 2 Accelerated 8 Years $1,464,000 (Full Cost) TABLE L (continued) DUKE ENERGY CAROLINAS SUMMARY OF POTENTIAL RELIABILITY ISSUES 2024 SUMMER PEAK - WS3 Potential Potential Element Contingency Solution Issue ($2013) 2.15 miles 954 ACSR Lee 3 Gm Greenville-North Greenville Reconductor Greenville-North Greenville Loading White 100 kV Line 1 [2028] Black 100 kV Line 2 (94.9 %) (Verner) Accelerated 5 Years (Verner) $413,000
Bush River-Laurens EC 30 White 100 kV Line 1 (Clinton) Lee 3 Gm Bush River-Clinton-Laurens Black 100 kV Line with Clinton Tie Throwover (Clinton) Loading (98.3 %) 12.99 miles 2/0 Cu Reconductor [2026] Accelerated 19 Years $7,085,000 (Full Cost) Anderson-Toxaway 100 kV Line 2/1 (Fiber) Lee 3 Gm Anderson-Toxaway 100 kV Line 1/2 (Fiber) Loading (98.3 %) 5% Reactors on Fiber 100 kV Lines [2033] Accelerated 12 Years $804,000 (Full Cost) Shady Grove 230/100 kV Transformer 1 Lee 3 Gm Shady Grove 230/100 kV Transformer 2 Loading (92.0 %) New Shady Grove Transformer Capacity [2032] Accelerated 8 Years $1,464,000 (Full Cost) TABLE L (continued) DUKE ENERGY CAROLINAS SUMMARY OF POTENTIAL RELIABILITY ISSUES 2024 SUMMER PEAK - WS3 Element Contingency Potential Issue Potential Solution ($2013) Greenville-North Greenville White 100 kV Line 1 (Verner) Lee 3 Gm Greenville-North Greenville Black 100 kV Line 2 (Verner) Loading (94.9 %) 2.15 miles 954 ACSR Reconductor [2028] Accelerated 5 Years $413,000
2013_Carolinas_Wind_Study_Report_FINAL_redacted.docx