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Engineering & Design

Engineering Built for Construction

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  • 150+ substations designed (existing and new facilities) 

  • Voltages from 4.16 kV to 345 kV

  • 50,000 structures reviewed or designed

  • 500+ miles of line replacement design

Construction-Ready Engineering, Start to Finish

RLC’s design team delivers fully engineered solutions that are ready for procurement, construction, and commissioning. Our engineers handle every discipline in-house: electrical, civil, structural, and mechanical.

Clients get integrated design packages with consistent quality, no subcontractor handoffs, and a single team accountable for the outcome.

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Substation Design

Complete substation engineering for brownfield rebuilds and greenfield installations, from initial facility studies through equipment specification, construction support, and commissioning.

  • Substation Rebuilds (Brownfield)

  • New Substations (Greenfield)

  • Generator (Small/Large) Facility Studies

  • Estimating

  • Equipment Specification

  • Construction Support (Management/Inspections)

  • Testing and Commissioning Planning

  • Other Studies (Grounding, Load Flow, Short Circuit, Insulation Coordination, Direct Stroke Protection, Site/Building Lighting, AC Station Loading, DC Station Loading)

View Service Line Card

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Transmission & Distribution Line Design

Overhead and underground transmission and distribution design from the conceptual level through detailed construction documents, including routing, structural analysis, and procurement specifications.

  • Line Upgrades

  • Line Replacements (Includes Routing and Right of Way Width Evaluations)

  • Underground Transmission Systems Development

  • PLS-CAD Modeling (New/Existing Systems)

  • OH Line Rerates

  • EPRI Structure Analysis for Preventive Maintenance Programs

  • Vendor/Fabricator Coordination

  • Construction Support (Management/Inspections)

View Service Line Card

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Protection & Control System Design

Relay settings, control system architecture, and SCADA integration designed to minimize misoperation and maintain reliability across transmission and distribution systems.

  • Control System Design (Transmission/Distribution)

  • Settings (Protection & A&I)

  • Area Study/Coordination

  • SCADA

  • Communications Networks

  • Standards Development

  • 61850 Systems

  • PRC Studies

  • Owner’s Engineering Support

  • Maintenance/Operations Support

  • Post Event Analysis for System Disturbances

  • Hardware/Firmware/Software Updates

  • Construction Support (Management/Inspection)

  • Testing and Commissioning Support

View Service Line Card

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Design Studies

A full suite of design-level analyses for PV, wind, and BESS systems informing equipment selection, protection coordination, and system performance.

  • Short Circuit Study

  • Load Flow Study

  • Reactive Power Study

  • Effective Grounding Study (Coefficient of Grounding Study)

  • Protection and Coordination Study

  • Ground Potential Rise Study (Step and Touch)

  • Arc Flash Study

  • Thermal Ampacity Study

  • Temporary Overvoltage Study

  • Insulation Coordination Study

  • Harmonic Study

View Service Line Card

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Civil & Structural Design

In-house civil and structural engineering for substation and transmission projects, including site development, foundation design, structural evaluations, and construction phase services.

  • Site Development and Stormwater Management

  • Access Road Design

  • Secondary Oil Containment Design

  • Steel and Aluminum Structure Design, Evaluations and Retrofits

  • Structure Condition Assessments, Evaluations, and Retrofits

  • Rigid Bus Design and Finite Element Modeling

  • Shallow and Deep Foundation Design

  • Construction Phase Services

View Service Line Card - Substations

View Service Line Card - Renewables & Energy Storage

  • 6F0A2056 smaller.jpg

    Substation Design

    Complete substation engineering for brownfield rebuilds and greenfield installations, from initial facility studies through equipment specification, construction support, and commissioning.

    • Substation Rebuilds (Brownfield)

    • New Substations (Greenfield)

    • Generator (Small/Large) Facility Studies

    • Estimating

    • Equipment Specification

    • Construction Support (Management/Inspections)

    • Testing and Commissioning Planning

    • Other Studies (Grounding, Load Flow, Short Circuit, Insulation Coordination, Direct Stroke Protection, Site/Building Lighting, AC Station Loading, DC Station Loading)

    View Service Line Card

  • Transmission Planning smaller.jpg

    Transmission & Distribution Line Design

    Overhead and underground transmission and distribution design from the conceptual level through detailed construction documents, including routing, structural analysis, and procurement specifications.

    • Line Upgrades

    • Line Replacements (Includes Routing and Right of Way Width Evaluations)

    • Underground Transmission Systems Development

    • PLS-CAD Modeling (New/Existing Systems)

    • OH Line Rerates

    • EPRI Structure Analysis for Preventive Maintenance Programs

    • Vendor/Fabricator Coordination

    • Construction Support (Management/Inspections)

    View Service Line Card

  • P&C_SS 1 Smaller.jpg

    Protection & Control System Design

    Relay settings, control system architecture, and SCADA integration designed to minimize misoperation and maintain reliability across transmission and distribution systems.

    • Control System Design (Transmission/Distribution)

    • Settings (Protection & A&I)

    • Area Study/Coordination

    • SCADA

    • Communications Networks

    • Standards Development

    • 61850 Systems

    • PRC Studies

    • Owner’s Engineering Support

    • Maintenance/Operations Support

    • Post Event Analysis for System Disturbances

    • Hardware/Firmware/Software Updates

    • Construction Support (Management/Inspection)

    • Testing and Commissioning Support

    View Service Line Card

  • Solar_SS 7 smaller.jpg

    Design Studies

    A full suite of design-level analyses for PV, wind, and BESS systems informing equipment selection, protection coordination, and system performance.

    • Short Circuit Study

    • Load Flow Study

    • Reactive Power Study

    • Effective Grounding Study (Coefficient of Grounding Study)

    • Protection and Coordination Study

    • Ground Potential Rise Study (Step and Touch)

    • Arc Flash Study

    • Thermal Ampacity Study

    • Temporary Overvoltage Study

    • Insulation Coordination Study

    View Service Line Card

  • Transmission Line_SS 3 smaller.jpg

    Civil & Structural Design

    In-house civil and structural engineering for substation and transmission projects, including site development, foundation design, structural evaluations, and construction phase services.

    • Site Development and Stormwater Management

    • Access Road Design

    • Secondary Oil Containment Design

    • Steel and Aluminum Structure Design, Evaluations and Retrofits

    • Structure Condition Assessments, Evaluations, and Retrofits

    • Rigid Bus Design and Finite Element Modeling

    • Shallow and Deep Foundation Design

    • Construction Phase Services

    View Service Line Card - Substations

    View Service Line Card - Renewables & Energy Storage

Explore our resources for more information on our Engineering & Design offerings

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