Proven Capabilities to Support Your Projects
Our experienced, multidiscipline project teams offer the full range of comprehensive services necessary to successfully execute all aspects of electric grid projects. From cross-country bulk power transmission lines to enclosed gas-insulated substations tucked into tightly constrained urban locations to electronic fleet applications, Sargent & Lundy is your partner to meet the complex challenges facing electric grid delivery projects. Working in close collaboration with our clients, teams are staffed with the specific resources required to fulfill each project need. With a clear focus on quality, our proven project management skills and tools are applied to all tasks to achieve budget and schedule commitments.

Spotlight Technologies:
- FERC Order No. 1000 Project Strategies and Collaboration
- Generation Plant Retirement Switchyard Modifications
- Smart Grid and Grid Modernization
- HVDC/FACTS
Substation Engineering Services for Grid Modernization
Grid Modernization Consulting Services
Webinars on Flexible AC Transmission Systems (FACTS). Three informative discussions are available online. View
Transmission Line and Substation Engineering Design Courses: Offered virtually during COVID-19 pandemic. See below for course dates, brochures, and registration programs.
Comprehensive Services:
- Air- and Gas-Insulated Substation Design
- Grid Modernization
- Overhead, Underground, and Submarine Transmission Line Design
- Electric Transportation Applications
- Distribution Engineering and Design
- Program/Construction Management and Commissioning
- Procurement and Material Management
- System Studies
- Regulatory Compliance
- Transmission Line and Substation Engineering Training Courses
Air- and Gas-Insulated Substation Design
Sargent & Lundy has designed hundreds of substations and switchyards for electric utilities, independent power producers, and industrial installations from 2.3 kV to 765 kV. Our experience includes open-air and gas-insulated stations, both greenfield sites and upgrades, and expansions of existing substations. Sargent & Lundy’s comprehensive services range from conceptual designs, cost estimates, and siting studies to physical design, grading and drainage design, protection and control engineering, foundation design, and preparation of complete specifications for material, equipment, and construction.
This extensive experience is applied to develop creative solutions for challenging projects, including innovative physical arrangements to accommodate space constraints and irregular site boundaries, enclosed substation designs compatible with urban environments, grading and drainage designs to comply with stormwater runoff and retention regulations, and integrating new control and protection systems into existing substations.
Grid Modernization
Sargent & Lundy has a proven track record of completing projects across the United States and internationally that support smart grid implementation, including new substation designs, solar and wind energy designs, battery energy storage, grid interconnection, load flow studies, and cyber/physical security projects along with hundreds of NERC CIP compliance upgrades.

Overhead, Underground, and Submarine Transmission Line Design
Developing cost-effective designs suited for the diverse conditions encountered along transmission line routes requires experienced project teams. Sargent & Lundy has designed thousands of miles of transmission lines in all voltage classes. We’ve analyzed and designed all types of structures for new and existing overhead lines and designed riser structures for transitions from underground to overhead lines. Our complete project services include line routing, conceptual designs and cost estimates, project life-cycle cost studies, cable selection, duct package design, structure and foundation design and analysis, optimized structure spotting, lightning performance analysis, induction studies, and preparation of material and construction specifications.
Sargent & Lundy has developed compact line designs to fit into narrow rights-of-way, foundation designs for extremely poor subsurface conditions, designs and construction procedures for installations done with helicopters, and underground cable installations under congested, urban roadways involving railroad and transit system track crossings.
Program/Construction Management and Commissioning
Sargent & Lundy deploys extensive experience and multidiscipline resources to provide clients with effective coordination and administration of each phase of complex projects. This includes: development and maintenance of integrated project schedules; preparation of budget estimates; tracking status of engineering, procurement, and construction activities; and management of multiple supply and construction contracts.
The appropriate combination of onsite staff and office support is applied to effectively manage large projects or multiple-sequenced programs of projects, from concept to commissioning. We work with project owners to develop comprehensive plans for each project. The sequence of tasks is evaluated, incorporating our knowledge of utility capital projects. Permitting requirements, public and property owner issues, engineering challenges, supply chain considerations, construction complexities, and outage constraints are incorporated in this process.
In conjunction with the development of specifications for transmission and substation material and equipment, we perform a complete range of procurement services. Procurement services range from soliciting and evaluating bids to supplier monitoring and expediting, including factory inspections, quality control reviews, and test witnessing.
Sargent & Lundy also provides complete construction management and commissioning services for power transmission projects. Our experienced staff is available for onsite management and quality control surveillance of all construction activities. We can provide a complete construction services team for a project or individual personnel for staff augmentation. Our experience ranges from monitoring construction of hundreds of miles of transmission line to erection of multistory buildings for enclosed urban substations.
We provide testing services for the analysis and commissioning of substation equipment and complete substation installations. Our approach includes close collaboration with the owner to develop testing criteria and procedures that comply with necessary requirements and documentation that is accurate.
Transmission Line and Substation Engineering Design Courses
Sargent & Lundy offers training in substation, overhead transmission line, and underground transmission line design to our clients in the utility industry. Training is offered annually at our Chicago office in the spring and fall. We also offer onsite classes to our clients upon request. Courses last two to four days, and upon completion participants may earn 16 to 32 professional development hours (PDHs).
2023 Courses
Substation Engineering Design Course
June 12-15, 2023
September 11-14, 2023
Register
Overhead Transmission Line Engineering Design Course
June 19-22, 2023
Register
See registration forms for details.
Questions about the courses or registration?
Contact Mary Jo McNamara +1-312-269-2117
Payment
- Submit your registration fee by credit or debit card
- The registration fee can also be paid by corporate check or wire payment