Power Delivery

Over the years, we have been privileged to work with electric utilities, regional grid operators, renewable energy developers, and contractors of electric grid infrastructure projects across the Northeast, Mid-Atlantic, and Southeast regions, offering a comprehensive package of engineering, design, and estimating services. Our engineers are familiar with each of our client’s standards and maintain a high level of quality for all design-related projects. We leverage our design experience in combination with utilizing nationally recognized software to support cost-estimating efforts for our utility and energy developer clients.

Questions about
Power Delivery?

Contact Phil Nadeau, PMP, PE

Substation Design

Our engineers can plan, specify, and perform all aspects of preliminary and detailed engineering for transmission, distribution or interconnection substations. Our engineers assist clients in navigating from the conceptual stage into the preliminary stage to include final design as well as through material procurement, construction and final commissioning. We perform detailed project designs, develop material purchasing and construction service specifications, and produce designs for transmission, distribution and auxiliary systems.

  • Substation Rebuild Design (Modifications, Additions and Upgrades to Existing Substations) and New Substation Design
  • Substation Layout Designs
  • Coordination of Interconnection Applications
  • System and Facility Studies, Review and Planning
  • Site Selection, Planning and Permitting
  • Environmental Services and Geotechnical Studies Management
  • Electrical, Civil and Structural Design
  • Transmission System Interconnection Requirements
  • Construction Management and Inspection
  • Testing & Commissioning
  • Project Record As-Built Coordination
  • Windows Based Integrated Grounding System Design (WinIGS)
  • Visual Lighting
  • SAGE-Timberline
  • AutoCAD

Transmission Line Design

We provide transmission line design services from the conceptual level through design for construction on lines ranging from 4 kV to 345 kV. Our engineers utilize leading-edge software programs to design and analyze transmission line facilities for a variety of needs.

  • New Line and Line Replacement Design, including Routing and Right-of-Way (ROW) Width Evaluation
  • Existing Overhead Line Ratings and Re-Ratings
  • PLS-CADD Model Development of New and Existing Facilities based on available Data, including Survey and Drawings
  • Structure Analysis and Design for Fiber Optic Additions and Maintenance Work
  • Coordination of Design Requirements with Major Structure Vendors
  • Construction Support and Project Closeout, including Submittal Review and Record Drawings
  • Underground Transmission Development and Design
  • PLS-CADD
  • AutoCAD
  • MicroStation
  • ArcGIS
  • PLS-POLE
  • PLS-TOWER

Protection & Control

We offer significant experience in the area of utility system protection and coordination for renewable, non-renewable, regulated and non-regulated clients. Our engineers have created, reviewed and approved protective relay settings for numerous relay types and applications. In addition, we develop construction-level control system designs for new and existing facilities.

  • Transmission Line, Substation Bus, Power Transformer, Capacitor Bank, Shunt Reactor, and Generation Plant Protection and Coordination
  • Develop Relay Settings, Integration Programming and Communications Interface for Existing or New Protection Systems
  • Engineer of Record (EOR) for Detailed Protection Designs through Construction
  • Owner’s Engineer for New and Modified Facilities
  • Owner’s Representative including Preparing and Presenting to the Northeast Power Coordinating Council (NPCC) for New and Revised Protection Systems
  • Provide North American Electric Reliability Corporation (NERC) Standards Reliability Assessment, Performance Analysis, Reliability Risk Assessment and PRC Standards Compliance Support
  • Provide Field Support during Commissioning Activities, Assist with Troubleshooting, Develop Operating Descriptions/Instructions for Personnel, Prepare Test Plans and Facilitate the Completion of As-Built Documentation
  • Provide Post-Event Analysis for System Disturbances
  • Power System Modeling Software including: ASPEN OneLiner, SKM Power Tools, CYME, CAPE, PSSE and PSLF
  • Schweitzer Engineering (SEL), AcSELerator and 5010 for Numeric Relays (100 through 400 Series)
  • General Electric/Multilin, Enervista Software for “UR” and “SR” Numeric Relays
  • ABB Microprocessor Relays
  • ERL and Alstom Numerical Line Protection Relays
  • Proprietary, DNP, MODBUS and 61850 Communication Protocol Applications
  • Various Electromechanical and Solid-State Relays
  • Power Transformer Load-Tap-Changing (LTC) Control Relays
  • AutoCAD

We offer a complete package of Automation & Integration (A&I) services, ranging from simple Remote Terminal Unit (RTU) replacements or additions to comprehensive substation Human-Machine Interfaces (HMI) and fully integrated substations. We have experience with a variety of vendor platforms and operating practices, along with the tools and skills needed to develop, test and commission your application. We also provide an impartial evaluation of vendors and equipment to meet each client’s unique specifications and needs.

Planning & Design

  • Communications Network Design
  • Automation & Integration Schemes
  • Communications Diagrams
  • Remote Engineering Access
  • IED Data Maps
  • SCADA Data Sheets
  • Interface to EMS
  • Interface to Regional Planning Coordinators, such as PJM or ISO-NE
  • Most Utility Standard Protocols

Programming

  • HMI & SCADA Systems
  • Substation Data Concentrators
  • Remote Terminal Units (RTU)
  • Programmable Logic Controllers
  • IONs, SATECS, Bitronics Meters, INCONs, Beckwith M2001C&Ds, GPS Clocks, Qualitrol Xfmr Monitors

Support

  • Onsite Testing & Support
  • Testing with EMS Center
  • Simulation/Bench Testing of SCADA Software Applications (before implementation in the field) to Reduce Delays during Construction and Implementation
  • Factory Acceptance Testing

Civil & Structural Design

We offer complete civil and structural engineering services for substation and transmission projects. With extensive electric utility experience, our team has the unique knowledge necessary to provide safe, constructible and functional designs ensuring the reliability of your facility.

  • Site development
  • Erosion control
  • Stormwater management design
  • Access road design
  • Secondary oil containment design
  • Regulatory site permitting
  • Partnering with firms for surveying, geotechnical investigations, and other field studies
  • Steel and aluminum structure design
  • Structure condition assessments, evaluations, and retrofits
  • Steel lattice structure evaluations and retrofits
  • Rigid bus design and finite element modeling
  • Shallow and deep foundation design
  • Specifications, bid documents, and contracts
  • Submittal review and RFI resolution
  • Construction inspections
  • Record drawings