We’re ready to shape the future together.

Hello, Avangrid. We are Gannett Fleming.

Gannett Fleming is an Avangrid Framework agreement holder, #4600035972.

Whether you’ve worked with us before or are meeting us for the first time, we’ve created this page as a resource for Avangrid project engineers and project managers.

With a 105-year track record of innovating and partnering with clients, we’ve pioneered solutions to some of our communities’ most pressing infrastructure challenges.

Building stronger communities starts with solid infrastructure. At Gannett Fleming, we are leaders in resilient and sustainable planning, design, and technology that withstand the forces of a rapidly changing world. Our solutions are reshaping the architecture, engineering, and construction (AEC) industry’s future and leading it to a higher standard.

Through technical excellence and innovation, we offer private and public clients a full range of power delivery and renewable energy services. Our integrated power solutions can take you from project siting and permitting to turnkey construction and startup, offering value and quality every step of the way.

A leader in the power industry, we are committed to our brand promise to deliver excellence on every project, every day.

Whether developing new infrastructure or rehabilitating and replacing existing systems, we are ready to meet Avangrid’s need for resilient and efficient facilities.

At the core of our services is power engineering for substations, transmission, and distribution systems. We have experience with storm hardening to incorporate resiliency measures intended to withstand weather challenges and protect assets.

  • New and expanded substations.
  • Equipment replacement.
  • SCADA and communication systems.
  • Overhead and underground transmission & distribution systems.

Additional Services

In addition to engineering and design of power distribution equipment and systems, our team offers a wide range of services. We’d be happy to tell you more!

  • Architecture and building engineering.
  • Engineer, Procure, Construct (EPC) project delivery.
  • Environmental services and permitting.
  • Geotechnical evaluations.
  • Safety & security services.
  • FERC/NEI/NERC/NRC regulatory compliance.
  • Geospatially enabled information technology systems.
  • Asset management solutions.
  • Valuation & rate services.
  • Sound and acoustical studies.

Responsive. Our firm has local engineering teams, close proximity to the expected work sites, and a 100-year history of proven responsive service to major utilities.

Continuous Quality Improvement. Our Quality Management System defines the processes we use to execute every project across the firm, regardless of scope or scale.

Experienced. We are familiar with your policies, procedures, and needs because we have experience working for you to help you reach your goals.

Qualified. Our team has decades of experience bringing valuable insight to substation projects nation-wide.

Featured Projects



Electrical design, civil work, and major equipment replacements for several substation projects.

  • NYSEG & RGE: Capacitor Bank Replacements at 18 Substations.
  • NYSEG: Willet Substation.
  • NYSEG: Luther Forest.
  • NYSEG: Chenango Forks.
  • CMP: Leeds Substation.




Electrical design of multiple substations, substation storm hardening solutions, and EPC services.

  • Mason Substation.
  • 230kV Upgrades at Cuthbert, Levittown, Cinnaminson, Gloucester, Yardville, Crosswicks, and Bustleton.


First Energy

First Energy

Over 45 substation projects ranging from 34.5kV to 500kV.

  • Design of new or upgrade of existing substation facilities to improve system reliability.
  • Specify and procure all material and equipment.


AES Indiana

AES Indiana

Engineering design and project management for 20+ substation projects in the past 5 years.

  • TDSIC Program.
  • Center Substation.
  • Hanna Substation.
  • Rockville Substation.


Madison Gas & Electric

Madison Gas & Electric

Design for switchgear, relay upgrades, and security for various substations.

  • Walnut Street Substation.
  • Blount Substation.
  • East Campus Substation.
  • West Towne Substation.
  • Pflaum Substation.


Sacramento Municipal Utility District

Sacramento Municipal Utility District

Senior Substation Engineer staff augmentation services since 2014.

  • Owner’s Engineer.
  • Detailed Design and Specification Support.
  • Mentoring.