Delivering reliable energy for today and tomorrow.

FPL is committed to delivering reliable service to our customers and properly planning for anticipated growth throughout the state. To do so, the company continues to invest in our energy grid. FPL is proposing to build an approximately 80-mile transmission line from Okeechobee to DeSoto counties. The proposed transmission line would improve system reliability for our customers and support future growth in the area. The project also includes enhancements to existing substations and infrastructure in the area and serves substations in Okeechobee, DeSoto and Highlands counties. 

Quick Facts

  • The 230-kV line would begin at Sweatt substation in Okeechobee County and end at Whidden substation in DeSoto County. 
  • FPL evaluated various potential routes for the new transmission line, some of which include existing rights-of-way and easements.
  • This project will require certification under Florida’s Electric Transmission Line Siting Act (TLSA).
  • FPL is committed to keeping the community informed throughout the process and we will provide additional information as the project progresses.
  • FPL pledges to work safely and respectfully and abide by applicable environmental and governmental regulations.
  • Pending approval, we plan to bring the new transmission line into service in 2025.

Project Timeline

  • Early-2022: Public Engagement and Input
    • FPL is committed to keeping the community informed throughout the process and we will provide additional information as the project progresses.
  • 2022-24: Design and Permitting
  • Mid-2024: Construction
  • Late-2025: In Service

Construction Process

  • Construction consists of right-of-way clearing, access road construction (where necessary) line construction and restoration
  • Structures are generally delivered using semi-trucks and trailers
  • All vegetation maintenance is conducted according to approved standards
  • Equipment used for construction typically includes trucks, trailers, cranes, auger diggers and other support vehicles


  • FPL will abide by applicable environmental and governmental regulations  
  • Project will be licensed through the State’s Transmission Line Siting Act (TLSA) 
  • TLSA streamlines all state and local agency permitting processes into a single process
  • Administered by the Florida Department of Environmental Protection
  • After a review of various factors and constraints, FPL identified a Preferred Corridor for the proposed transmission line
  • Process allows for input on Preferred Corridor by all affected State agencies, local governments and the public
  • Provides opportunities for an administrative hearing and review by the state Siting Board
  • Project will be evaluated for whether the proposed location balances the need for the transmission line with impacts upon the public and environment 
  • TLSA application expected to be filed in April 
  • Additional federal permits may need to be obtained depending on the route ultimately selected

Environmental and Cultural Resources

  • The following resources will be analyzed:
    • Vegetation
    • Wildlife
    • Aquatic Life
    • Scenic, Cultural, and Natural Landmarks
    • Archaeological and Historic Sites 

Preferred Corridor

sweat whidden transmission map

Contact Information:

Phone: 561-694-4826

Email: reliability@fpl.com

Typical Transmission Structures

sweat whidden transmission
sweat whidden transmission

Stages of Construction

sweat whidden transmission