RLC Engineering, LLC (RLC) has prepared this report to develop a high level feasibility and conceptual grade cost estimate for the proposed 500kV and 230kV Dual Circuit XLPE Underground Transmission Line Installation (Project) located in Loudoun County, VA. The Project is a 10,400’ (1.96-mile) long underground installation of two (2) transmission lines in a common duct bank. The underground transmission lines will be a section of a larger 500kV/230kV overhead transmission line, which will run 10 miles cost for transmission line upgrades and removals for the installation of the new switching station.

SCOPE OF SERVICES

• Cost estimate for the 500kV and 230kV underground transmission lines includes civil duct system and electrical equipment installation.
• Report for this project include cost comparisons for the overhead vs. underground transmission line project costs.