PSC Approves Need for DEF’s Proposed Transmission Line

The line is proposed to run from DEF's existing DeLand West Substation in Volusia County to its Dona Vista Substation in Lake County. As part of the project, Duke also plans to rebuild an existing 69 kV line along the same route, improving reliability for customers served by the line.

In addition to improved overall system integrity, the project will increase north-to-south power transfer capabilities, relieve potential overloads and low voltage conditions, and reduce line loading on existing circuits. The new transmission line is projected to cost $165 million and be in service by January 2030.

"This project will enhance system reliability, increase power transfer capability, and better meet local load requirements," said PSC Chairman Mike La Rosa. "It is also the most cost-effective and efficient alternative to increase capacity for DEF customers in this service area."

Section 403.537, Florida Statutes, directs the PSC to hold a hearing on a petition for determination of need for a jurisdictional transmission line. The proposed transmission line's corridor will be reviewed for certification under the Transmission Line Siting Act, a multi-agency process coordinated by the Florida Department of Environmental Protection (FDEP). The PSC's determination of need is a condition precedent to the conduct of the certification process. A final decision on certification of the transmission line corridor is made by the Siting Board (Governor and Cabinet) or, if undisputed, the FDEP.

DEF serves nearly 2 million retail customers in the State of Florida.