Transmission Line and Substation Project

To meet the anticipated growth in Hernando County and Sumter County, Fla., Duke Energy plans to construct new transmission lines, extend existing transmission lines and upgrade other existing transmission lines. Duke Energy also plans to construct a new Mondon Hill Substation. 

 

Project Details

Brooksville West – Springwood

  • Upgrade transmission connections from 115-kilovolt (kV) to 230-kV within the Brooksville West Substation in Brooksville, Fla.
  • Upgrade the transmission connections to the Springwood Substation (WREC) in Brooksville, Fla.

Brooksville – Mondon Hill 

  • Construct two new one-mile, 115-kV transmission lines on a combination of single-circuit 115-kV, double-circuit 115-kV, double-circuit 115/69-kV, triple-circuit 230/115/69-kV and quadruple-circuit 115/115/69/69-kV, on monopoles from the existing Brooksville Substation in Brooksville, Fla. to the new Mondon Hill Substation in Brooksville, Fla.
  • Extend one existing 115-kV transmission line approximately 1.5 miles on a combination of single-circuit 115-kV, double-circuit 115-kV, double-circuit 115/69-kV and quadruple-circuit 115/115/69/69-kV, on monopole structures from the existing Brooksville Substation to the new Mondon Hill Substation.
  • Extend one existing 115-kV transmission line approximately 1.5 miles and upgrade it to 230-kV on a combination of single-circuit 230-kV, double-circuit 230/69-kV and triple-circuit 230/115/69-kV, on monopole structures from the existing Brooksville Substation to the new Mondon Hill Substation.
  • The transmission lines will be built on monopoles ranging from 20 to 25 feet taller than the existing wood poles.

Mondon Hill – Bushnell East 

  • Construct approximately 20 miles of new 230-kV transmission line on a combination of single-circuit 230-kV, double-circuit 230/69-kV and triple-circuit 230/69/69-kV on monopoles, from the new Mondon Hill Substation to the existing Bushnell East Substation in Bushnell, Fla.

Benefits to the Community

  • Enhance the ability of Duke Energy and neighboring utilities to provide safe and reliable energy to homes, community facilities and businesses in the area. 
  • Provide flexibility and additional capacity to continue delivering reliable electricity to meet the region’s growing energy needs.
  • Maintain a robust system for supplying and delivering energy, which is integral to the continued economic prosperity of the region. 

What to Expect

Once a project is announced there are several key steps that take place during the design and pre-construction phases of a transmission line project. During early stages of field investigation, residents may see Duke Energy staff and contractor field crews in the area evaluating existing conditions. This field data is crucial in assisting our engineering teams and other personnel with the design and construction planning for the project. After the field investigation is complete, our engineering team will develop the design for the project. 

If a new easement or an update to the current easement is required, a company representative will contact the property owner to discuss the easement process. Additionally, we will be assessing the need to clear obstructions and vegetation within the current easement to prepare for construction. Property owners will be notified in advance should either of these issues need to be addressed.  

Construction activities are anticipated to begin in January 2022 and last through November 2023.

Key Dates

Dates are subject to change

  • Public Notifications

    August 2018

  • Real Estate Activities Started

    January 2021

  • Construction Begins

    January 2022

  • Restoration of Right of Way

    To be completed after construction

  • In-service Date

    November 2023

icon transmission wires

Transmission and what we do

 Watch our short video to learn more about the importance of transmission and how it plays a vital role in powering our communities.

Have a Question or Comment?

Email us at MPPReliability@duke-energy.com
Call at 877.552.8725
Or write Duke Energy Public Engagement
NP4B
3300 Exchange Place
Lake Mary, FL 32746

@ Sign up for email