Custom Solutions

From simple substation upgrades to greenfield projects, our team can build modern design solutions as well as innovative upgrades, modifications, and expansions to existing infrastructure. We build to the latest standards and codes ensuring compliance and a smoother licensing and permitting experience. EVS is a one-stop-shop for substation engineering and design.

EVS’ team has experience in engineering and designing more than 30 substations, switching stations and interconnect stations for utilities, cooperatives, municipalities, contractors and developers within the power delivery and clean energy markets.

Our experience includes system studies, high and low voltage air-insulated and gas-insulated switchyards, static and dynamic VAR compensation, renewables interconnections, NERC and FERC requirements, relay settings, site development, client-specific standards and a full engineering and design service.


Substation Services


Station Arrangement Drawings

Structure Design and Details

Civil Site Services

Foundation Design and Details

Major Equipment Specifications

Bill of Material List

Lighting Protection Study

Site Grading Design

Rigid Bus Design Calculations

Independent Engineer Review

Grounding Study

Environmental Studies


Access Road Design

Grading Design

Permitting Support

Spill Prevention, Control, and Countermeasure Plan

Stormwater Pollution Prevention Plan

Technical Procurement Support

Technical Construction Support


Protective Relay and Control Drawings

Control Enclosure Design and Spec

Relay Panel Drawings

Bus Fault Calculations

Auxiliary Power System Design

Electrical Equipment Specifications

Conduit and Cable Schedules

Fault Coordination Study

Battery and Station Service Sizing

Protective Relay Settings Development

Arc Flash Mitigation