Requires electric public utilities to upgrade certain portions of electric transmission and distribution system with advanced conductors.

New Jersey Senate Bill S3464 requires electric utilities to replace certain existing power line wires with "advanced conductors" that have at least 10% lower electrical resistance than current wires. Utilities must assess their systems within one year and propose upgrade locations to the Board of Public Utilities (BPU), prioritizing cost-effective projects during routine maintenance or standalone replacements. Utilities may seek approval to include upgrade costs in customer rates, with the BPU establishing criteria to determine "reasonable costs" based on benefits like reduced energy loss. This bill directly affects electric utilities operating in New Jersey and their ratepayers, mandating specific infrastructure upgrades without altering environmental or consumer protections.