115 KV Transmission Line Design & Permitting Support

  • Duke Energy Florida required the engineering and permitting of a new 115kV greenfield transmission line through a complex rural corridor.
  • The project faced multiple design constraints, including active agricultural infrastructure and coordination with future substation expansion.
  • Timely permitting, stakeholder engagement, and seamless integration with ongoing substation work were critical to meeting project goals and maintaining schedule integrity.
  • DST Engineers provided engineering services, including route evaluation, permitting coordination, transmission line and structure design, and construction support. 

  • The team leveraged PLS-CADD to model the route and engineered steel monopole structures tailored to site-specific conditions. 

  • Permitting support included coordination with local agencies and preparation of technical documentation for regulatory review. 

  • DST engineers worked closely with the substation design team to develop a constructable sequencing plan and responded rapidly to fabrication challenges in the field to ensure that the project remained on schedule. 

  • Stakeholder engagement was also a key component, with DST providing technical support during landowner meetings and regulatory proceedings.

  • Delivered full-route analysis and cost evaluation to

    inform design selection.

  • Navigated permitting challenges through early engagement with regulatory agencies.

  • Resolved fabrication and field constructability issues in real time. 

  • Integrated design efforts with substation and construction teams to streamline execution. 

  • Provided landowner engagement support and technical documentation for regulatory filings.

  • DST provided data, maps, charts, and calculations in a format easily accessible by ComEd.
  • DST successfully identified necessary grid upgrades and provided cost estimates for DER integration.
  • Throughout this program, DST ensured smooth communication and documentation, meeting regulatory and technical requirements for DER interconnection.

Get a Quote

Contact Us