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Electric power transmission is a significant engineering problem that demands expertise to minimize risks, ensure system reliability, and meet rigorous industry standards.

With extensive design experience earned from hundreds of miles of lines engineered, we are equipped to handle new infrastructure projects, rebuilds, upgrades, and relocations for systems of any voltage. 

Transmission line in Puerto Rico

Our skilled engineers and project teams are ready to deliver quality solutions for any project.

Service Offerings

Transmission Engineering

  • Overhead Rebuild and New Line Design

        Expert planning and engineering for rebuilding                      existing overhead lines and designing new greenfield

        transmission lines

  • HVDC System Design

       Innovative high-voltage direct current (HVDC) designs

       for efficient long-distance power transmission

  • Fiber Optic Integration and Routing 

       Strategic addition and routing of fiber optic systems

       to support advanced communication networks

       

  • Constructability and Outage Planning  

       In-depth reviews of constructability and outage

       sequencing to minimize downtime and optimize

       execution

  • Route Selection and Right-of-Way (ROW) Analysis  

       Thorough analysis of route options and right-of-way             considerations for efficient project siting

  • Foundation Design  

       Engineering for all types of foundations tailored

       to site-specific requirements

  • Advanced Structural Analysis   

       Detailed structural evaluations to ensure

       integrity and performance under all conditions 

 

  • Equipment Replacement and Asset Renewal

       Analysis and reporting for assessment of replacement

       of failed equipment and aging assets with modern,

       efficient alternatives

  • Project Management Services  

       End-to-end project management to ensure timely

       delivery, budget adherence, and quality outcomes

  • Underground Transmission Solutions    

       Specialized expertise in underground transmission

       design for urban and sensitive environments

 

  • High Voltage Underground Line Design

       Customized solutions for high voltage underground             transmission systems, ensuring reliability and                       efficiency

  • Line Reconductoring

       Upgrading transmission lines to enhance capacity 

       and performance with minimal disruption

  • EPC and Design/Build Expertise  

       Comprehensive engineering, procurement, and

       construction services, including design/build

       project delivery

  • Construction Documentation 

       Clear and exact construction plans and specifications

       for seamless project implementation

       

  • Steel Pole and Lattice Tower Engineering

       Advanced analysis and design of steel poles and

       lattice towers for durable and safe structures

       

  • Structural Reinforcement and Retrofitting 

       Strengthening existing structures to meet current

       standards and extend their operational lifespan.

  • Aerial Line Survey Services    

       

 

  • Standards and Specification Document Development

       Creation of clear, comprehensive standards and

       project specifications for high quality project

       execution

  • Cost Estimation

       In-depth cost analysis using industry expertise and               vendor contacts

 

Explore Our Work

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Headquarters

6 Commerce Drive

Reading, PA 19607

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© 2025 by Substation Engineering Company

© 2020 by Substation Engineering Co.

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Headquarters

6 Commerce Drive

Reading, PA 19607

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Phone: 610-603-5011

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Email info@subengco.com for more information.

Career Opportunities

To apply, please send resumes to our Human Resources Department: 

recruiting@subengco.com.

© 2023 by Substation Engineering Company

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