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Power Delivery

Electric utilities can’t have an off day. But aging infrastructure and skyrocketing demand pose huge financial and operational threats to delivering safe, reliable power. We provide a full range of power delivery services for utilities, municipalities, and industries that protect against today’s failure risks with an eye on future needs.

Our Experience

Power Delivery Solutions

Gannett Fleming understands what it takes to improve substation infrastructure. We have an extensive history providing full design, upgrade, and expansion services to substations, and we are familiar with all aspects of substation engineering, from relay and control measures and analytical services, to the design of structural modifications, site work, and permitting. Our substation design work ranges from 69 kilovolt to 345 kilovolt for U.S. and global utilities.

When it comes to transmission line construction and upgrades, technical and regulatory challenges often arise. Our firm is not only knowledgeable of the engineering and design requirements to successfully complete projects, but we also understand the environmental and permitting requirements that must be fulfilled when working with overhead and underground transmission lines. We can navigate these challenges and complete projects without sacrificing your schedule and budget.

Utility customers demand reliable services, and Gannett Fleming has the specialized knowledge and innovative design experience to meet distribution challenges. Our experience includes overhead and underground distribution replacement projects, as well as efficient, reliable design solutions for system optimization, expansion, and replacement.

Power Delivery Services

Transmission Services

  • Construction management 
  • Designing systems, including steel monopole, lattice tower and wood pole line design
  • Environmental impact studies and permitting 
  • Establishing clearances, sag, thermal, and mechanical loading
  • Siting and routing selection 
  • Staging and constructability reviews
  • Surveying and graphic information system services 
  • Underground cable expertise (oil filled and dielectric up to 345 kilovolt)
  • Underground conduit system design (ductbank and direct buried)
  • Up to 345 kilovolt profiling based on terrain survey using PLS-CADD
  • Value engineering.

Distribution Services

  • Construction management 
  • Environmental impact studies and permitting
  • Load studies 
  • New line design
  • Overhead and underground system upgrades 
  • Siting and routing analysis 
  • Staging and constructability reviews 
  • Surveying and geographic information system services 
  • Value engineering.

Substation Services

Analytical services
  • Arc flash studies (NFPA-70E)
  • DC/battery sizing studies
  • Load flow/Short circuit models
  • Relay coordination studies
  • Site grounding
  • Studies evaluations.
Electrical power systems
  • Circuit breaker (SF6, OCB) replacements
  • Gas Insulated Systems (GIS)
  • Medium/High voltage transmission
  • New substations
  • Physical design and layout (above and below grade)
  • Transformer replacements.
Protection and control
  • Relay design and modifications
  • SCADA systems
  • Security and safety services.
Structural services
  • Blast wall
  • Foundation designs
  • Geotechnical evaluations
  • Oil containment
  • Overhead bus structures.

Learn More About These Capabilities