• SCE claims that undergrounding the project will cost $521 million compared to $408 million to build the RTRP overhead.
  • However, in 2020, the California Public Advocates Office estimated that the costs of fully undergrounding this project by replacing the remaining 5 miles of overhead lines, when allocated to all transmission customers by the California System Operator (CAISO), will require an increase in residential rates of a small fraction of $1 per year for each customer.