Engineering and Design Services

EG&R specializes in engineering and design services for electric utilities, generating stations, as well as industrial and commercial facilities.  Our capabilities include:

  • Arc Flash Hazard Analysis
  • Facility Electrical Design Services
  • Power Distribution System Modeling and Analysis
  • Transmission and Distribution (including Substation Design)
  • MEP Design Services


Arc flash hazards pose a serious risk to personnel safety in the operation and maintenance of electrical distribution equipment.

EG&R’s licensed professionals can model our client’s existing power distribution system to determine the arc flash hazards and determine the required PPE (personal protective equipment) for safe equipment operation. We offer the following engineering services and capabilities:

  • Power distribution modeling and analysis utilizing ETAP
  • In-depth knowledge of IEEE, NFPA, and OSHA standards regarding Arc Flash Hazards
  • Calculation of incident energy levels, and arc flash hazard categories for all electrical distribution equipment
  • Address safety concerns and highlight high risk areas
  • Provide arc flash mitigation strategies and recommendations to lower incident energy levels and arc flash risks


Electrical Design Services:

  • One Line Diagram Development
  • Preparation of Schematic and Wiring Diagrams
  • Underground Duct bank Design
  • Cable Tray and Raceway Design
  • Ground Grid Design
  • Lighting Design
  • Electrical Equipment Arrangement Drawings
  • Power Distribution Center (Electrical Equipment Shelters) Design
  • Switchyard design and layout
  • Distribution System Design and Power System Modeling using ETAP Power Simulation Software.
  • Detailed calculations and studies for the sizing of distribution equipment.

Generator Design Services:

  • Generator Sizing
  • System Configurations
  • Switchgear Design
  • Interconnection Requirements
  • Protective Device Coordination
  • Sequence of Operations
  • Monitoring and Control Schemes
  • Building/Housing Design
  • Code Compliance
  • Grounding/Bonding
  • Air Quality Permits

Preparation of Technical Specifications for Equipment Procurement :

  • Generator Circuit Breakers
  • Switchyard Disconnect Switches
  • Auxiliary Power Transformers
  • Liquid and Dry Type Distribution Transformers
  • Medium Voltage Switchgear
  • Low Voltage Switchgear
  • Low Voltage Motor Control Centers
  • Power Distribution Centers (Equipment Shelters)
  • Medium Voltage Induction Motors
  • Low Voltage Induction Motors
  • Variable Frequency Drives
  • Medium Voltage Power Cables
  • Low Voltage Power and Control Cables
  • Instrumentation Cables
  • Fiber Optic Cables


The EG&R team has extensive experience in power system modeling.

We perform the following studies and analyses:

  • Distribution system modeling and analysis in ETAP Power Simulation Software
  • Load Flow and Voltage Drop Calculations
  • Short Circuit Studies
  • Motor Starting Analysis
  • Harmonic Analysis
  • Relay Coordination Studies and Calculations
  • Relay Setting Development
  • Arc Flash Hazard Analysis and Mitigation 
  • Cable Sizing and Cable Ampacity Calculations (Above ground and Underground)
  • Battery and Charger Sizing Calculations
  • Emergency AC Load Calculations and UPS Sizing
  • Grounding and Lightning Protection Studies
  • Lighting Calculations


  • Prepare detailed specifications and designs for the replacement of automatic reclosers and associated relaying
  • Prepare in-depth transmission and distribution line design to meet NESC standards as well as customer specifications
  • Oversee and prepare documents for the bidding process to facilitate line construction
  • Conduct site inspections during and following construction
  • Additional design and engineering services:
    • Route Selection
    • Pole Design
    • Material Selection/Procurement
    • Sag and Tension
    • Pole Framing Guides
    • Duct Bank Design
    • Detail Construction Drawings
    • Plan and Profile Drawings
    • Inventories


  • Design the station to fit your facility requirements
  • Electrical system calculations for the sizing of substation equipment
  • Prepare technical specifications and contract documents for the procurement of the following station equipment:
    • Power transformers
    • Circuit Switchers
    • Disconnect Switches
    • GIS Switchgear
    • Circuit Breakers
    • Station Bus
  • Compile Environmental Reports
  • Coordinate the bidding process for station equipment
  • Conduct site inspections during construction
  • Prepare closeout documents
  • Prepare closeout documents
  • Site Selection
  • General Arrangement
  • Equipment Selection/Specifications
  • Relaying and Controls
  • Protective Device Coordination
  • Substation Automation/Smart Grid
  • Ground Grid Design
  • Soil Erosion and Storm Water Management Plan
  • Oil Spill Prevention and Countermeasures


  • Heating, Ventilation and Air Condition (HVAC) System Design
  • Mechanical and Process Piping Design
  • Process and Instrumentation Diagram Development
  • Technical Specifications for Mechanical Equipment
  • Mechanical Pump and Fan Sizing
  • Heat Recovery System Design
  • Combined Heat and Power (CHP) System Design
  •  Instrumentation and Control Systems