Services

We support owners, developers, and EPC’s by designing solar projects that are efficient, cost-effective, and meet your challenging schedules. Partnering with EVS ensures that our dedicated team of experts has you covered from concept design through construction.

As one of the largest pure play solar engineering firms in the country, EVS is your one-stop shop providing all disciplines necessary to design your solar project.

Civil Engineering

Electrical Engineering

Structural Engineering

Geotechnical Engineering

Land Surveying

SUBSTATION ENGINEERING

TRANSMISSION ENGINEERING

Municipal Coordination and Meeting Support
Site Evaluation and Selection
Site Layout, Geometrics, Grading
Erosion and Sediment Control Plans/SWPPP
Drainage, Storm Sewer, Ponds
Sanitary Sewers and Water Supply
Project Entitlements
Permitting
Hydrology and Hydraulics

PV & BESS Design, Power Studies
Substation Physical, Protection and Control Design
DC and Medium Voltage Electrical Design
Battery and Station Service Sizing
Grounding Studies using WinIGS and CDEGS
Power Systems Coordination Study
Arc Flash Analysis using Etap and SKM
Voltage Drop Calculations as per NEC Guidelines
Ampacity Studies using CYMCAP and AmpCalc
Detailed PV Layouts for Permitting and IFC Construction Sets
PV One-Line and Three-Line Diagrams
In-Depth PVsyst Analysis
PV Equipment Selection Research Support
Load Flow/Reactive Studies
Short Circuit Studies
Pre and Post Energization Harmonic Studies

Utility Scale Pile Foundation Design
Inverter Mounting Foundation Design
CAB Hanger Foundation Design
Ponding Instability Evaluations
Snow Drift and Unbalanced Loading
Wind and Seismic Design
Deep Foundation
Foundations and Equipment Anchorage
Electrical Equipment Support
Duct Bank Structural Design
Structural Pavements
Rooftop Solar PV Design

Desktop Geological and Geotechnical Reviews
Preliminary Geotechnical Investigations
Electrical Resistivity Testing
Design Pile Load Testing
Geotechnical Subcontract Oversight
Utility Scale Geotechnical Analysis and Engineering
Verification Pile Load Testing during Construction
Geotechnical design for substation and transmission lines

Topographic Maps via Drone LiDAR or Traditional Survey Methods
ALTA/NSPS Land Title Surveys
Easement and Property Descriptions
As-built Surveys
Construction Staking
High Resolution Aerial Imagery
Verify Topographic Surfaces
Establish Site Control

SUBSTATION ENGINEERING

• Conceptual and Detailed Substation Design (Greenfield & Brownfield)

• Physical Layout and Equipment Arrangement (AIS/GIS Substations)

• Protection and Control System Design

• Grounding Analysis and Design

• Lightning Protection and Shielding Studies

• Bus, Cable, and Conduit Routing

• Equipment Specifications and Procurement Support

• Integration of Battery Energy Storage Systems (BESS)

• Construction Support and As-built Documentation

SCADA & CONTROLS ENGINEERING

• SCADA System Architecture and Integration
• RTU/PLC Programming and Configuration
• HMI Development and Interface Design
• Communications Network Design (Fiber, Cellular, Radio)
• Protocols: DNP3, Modbus, IEC 61850, SEL Protocols
• Remote Monitoring and Automation Solutions
• Cybersecurity Compliance (NERC CIP, etc.)
• System Commissioning and Testing Support

• Route Selection and Feasibility Studies
• Transmission Line Design (Overhead and Underground)
• Structure Loading and PLS-CADD Modeling
• Structure and Foundation Design
• Line Optimization and Conductor Selection
• Clearance, Sag, and Tension Analysis
• Environmental and Permitting Support
• Material Specifications and Construction Packages
• New Greenfield Design, Reconductor/Rebuilds, Voltage, and Capacity Upgrades