EVI-X Modeling Suite of Electric Vehicle Charging Infrastructure Analysis Tools
NREL's EVI-X modeling suite informs the planning and development of large-scale electric vehicle (EV) charging infrastructure deployments—from the regional, state, and national levels to site and facility operations.
Three Types of Tools
 
            Network Planning
Use these tools to quantify charging infrastructure needs such as:
- Number, type, and location of charging ports
- Recommended power levels and grid impacts
- Practical control strategies to counter EV charging loads
- Accessible and affordable charging
- Optimized charging for fleets and ride-hailing services
- Long-distance travel along highway corridors
- Utility partners for infrastructure installation.
 
            Site Design
Use these tools to inform charging station design for:
- Dynamic roadway charging feasibility
- Energy estimation and site optimization
- Optimal sizing and control of behind-the-meter storage
- Composition and size of EV fleets
- Optimal placement of charging station equipment.
 
            Financial Analysis
Use these tools to assess costs associated with charging infrastructure such as:
- Station and network economics
- Levelized cost of charging
- Investor payback period and risk analysis.
Network Planning Tools
| EVI-Pro: Electric Vehicle Infrastructure – Projection ToolVehicle Type: Light-duty vehicles | Tool Type: NREL software and web tool | ||||
| DescriptionCharging infrastructure projection based on typical daily travel Capabilities
 Target Users
 Contact | ||||
| EVI-OnDemand: Electric Vehicle Infrastructure – On Demand ToolVehicle Type: Light-duty vehicles | Tool Type: Simulation platform | ||||
| DescriptionCharging infrastructure demand modeling for electric ride-hailing services Capabilities
 Target Users
 Contact | ||||
| EVI-RoadTrip: Electric Vehicle Infrastructure for Road Trips ToolVehicle Type: Light-duty vehicles | Tool Type: NREL software | ||||
| DescriptionCharging infrastructure analysis for long-distance travel Capabilities
 Target Users
 Contact | ||||
| U-Finder: Utility Finder for Identifying Electric Vehicle Infrastructure Installation PartnersVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: Web tool | ||||
| DescriptionCharging infrastructure installation networking resources Capabilities
 Target Users
 Contact | ||||
| EVI-DiST: Electric Vehicle Infrastructure – Distribution System Integration ToolVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: NREL software | ||||
| DescriptionHigh-fidelity distribution grid insights for utilities Capabilities
 Target Users
 Contact | ||||
Site Design Tools
| EVI-InMotion: Electric Vehicle Infrastructure — In Motion ToolVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: NREL software | |
| DescriptionDynamic and quasi-dynamic charging infrastructure design analysis Capabilities
 Target Users
 Contact | |
| EVI-EnSite: Electric Vehicle Infrastructure — Energy Estimation and Site Optimization ToolVehicle Type: Light-duty vehicles | Tool Type: NREL software | |
| DescriptionCharging infrastructure energy estimation and site optimization Capabilities
 Target Users
 Contact | |
| EVI-EDGES: Electric Vehicle Infrastructure — Enabling Distributed Generation Energy Storage ModelVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: NREL software | |
| DescriptionHigh-fidelity modeling for optimal design and control of behind-the-meter storage (BTMS) resources Capabilities
 Target Users
 Contact | |
| HEVII: Heavy-Duty Electric Vehicle Integration and Implementation ToolVehicle Type: Heavy-duty vehicles | Tool Type: NREL software | |
| DescriptionMulti-fidelity telematics-enabled vehicle and infrastructure design analysis Capabilities
 Target Users
 Contact  HEVII: Heavy-Duty Electric Vehicle Integration and Implementation Tool | |
| EVI-Rental: Electric Vehicle Infrastructure – Rental Car ToolVehicle Type: Light-duty vehicles | Tool Type: Simulation platform | |
| DescriptionSimulation modeling of electrified rental car operations Capabilities
 Target Users
 Contact | |
| EVI-Ratio: Electric Vehicle Infrastructure – Ratio ToolVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: NREL software | |
| DescriptionPlanning the ratio and type of charging stations to vehicles in a fleet Capabilities
 Target Users
 Contact  EVI-Ratio: Electric Vehicle Infrastructure – Ratio Tool | |
Financial Analysis Tools
| EVI-FAST: Electric Vehicle Infrastructure – Financial Analysis Scenario ToolVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: Spreadsheet | ||||
| DescriptionCharging infrastructure financial analyses Capabilities
 Target Users
 Contact | ||||
| EVI-LOCATE: Electric Vehicle Infrastructure – Locally Optimized Charging Assessment Tool and EstimatorVehicle Type: Light-, medium-, and heavy-duty vehicles | Tool Type: Web tool | ||||
| DescriptionCharging station installation design analysis and cost estimation Capabilities
 Target Users
 Contact | ||||
Related Research
Electric Vehicle Grid Integration
Intelligent Vehicle Energy Analysis
Contact
Contact us to learn more about our EV charging infrastructure analysis capabilities or to discuss your partnership interests.
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Last Updated Aug. 12, 2025



 
                
