Transmission & Distribution Systems
Problem #1
Assume that a utility in Texas wants to install 15 miles of 500 kV, single-circuit transmission line (with one OPGW and one shieldwire using 90 lattice steel towers, 62 tangent structures, 20 running angle structures, and 8 non-angled dead-end structures), 795 kcmil Drake ACSR conductor (3 conductors per phase), over level ground with a 200 ft right-of-way, through a suburban area. In addition, assume the following cost adders: Professional Services & Overhead 10%, Contingency 20%, and AFUDC 7.5%. Using MISO's methodology, calculate the total project implementation cost estimate for this transmission line installation.