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Bayboro South GIS Substation

Working hard to improve power reliability for our customers

Computerized rendering of the Bayboro South Substation following construction
Computerized rendering of the Bayboro South GIS Substation after construction

Duke Energy plans to build a new 115-kilovolt/13-kilovolt (kV) transmission substation at the corner of 13th Avenue S and 4th Street S to enhance the energy supply in the greater St. Petersburg, Fla., area using state-of-the-art technology. This investment will provide long-term reliability to the transmission grid in the Gulf Coast area of Florida and support eventual retirement of the existing Bayboro facility.

A GIS Substation is a high voltage substation in which the major structures are contained in a sealed environment with sulfur hexafluoride gas as the insulating medium.

GIS Substation Benefits

  • Visual appeal
  • Compact space
  • System protection
  • Faster installation
  • Enclosed equipment

Community Benefits

  • Limit transmission overloads
  • Address projected growth in the community
  • Provide more reliable and resilient power delivery

Public Impacts

  • Construction noise and view
  • Temporary street closings at construction access points
  • Relocation of 4th Street S/13th Ave S bus stop bench/shelter
  • Relocation of parked vehicles in construction area


Community engagement allows us to receive input and to share information about this project.

Property owners in the area of the substation first received information about the project in an October letter.

Have a Question or Comment?

Call: 877.840.0101

View project map and rendering

Project Timeline

  • Substation construction start: October 2020
  • Ribbon Cutting Ceremony: Oct. 15, 2021
  • In-Service Date: December 2021

St. Petersburg, FL Skyline
View a video about the substation.