Idylwood – Tysons

The Idylwood – Tysons project involves a new 230-kV, underground transmission from the Idylwood substation to a preferred substation in Tysons. The project would also include rebuilding the Tysons substation as well perform relay work at the Reston substation.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Dominion Virginia Power 4.3 230 VA VA 2022
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
121.8 Planned Idylwood Tysons
Interstate Build Start NERC ISO/RTO Country Project Partners