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 Tool Vehicle Type: Light-duty vehicles \| Tool Type: NREL software and web tool
Description Charging infrastructure projection based on typical daily travel Capabilities Estimates the required quantity and type of chargers needed to meet a given demand Identifies associated power demands on the electric grid Accounts for differences in vehicle and charger technologies, market adoption conditions, the shared use of chargers, travel and charging preferences, and more Target Users Vehicle manufacturers Charging network operators Electric utilities and public utility commissions Researchers Government entities Contact EVI-X@nrel.gov EVI-Pro: Electric Vehicle Infrastructure — Projection Tool EVI-Pro Lite (U.S. Department of Energy)
	EVI-Equity: Electric Vehicle Infrastructure for Equity Model Vehicle Type: Light-duty vehicles \| Tool Type: NREL software
Description Environmental and energy justice analysis of current and future electric mobility Capabilities Evaluates the accessibility, affordability, community needs/benefits, and decarbonization impacts of EVs and charging infrastructure Provides comprehensive, high-resolution data and metrics for designing a more equitable electrification future, based on individual household-level socioeconomics, demographics, vehicle purchase and ownership, refueling behavior, mobility patterns, housing types, and environmental conditions such as air quality Target Users Vehicle manufacturers Charging network operators Public utility commissions Researchers Government entities Contact EVI-X@nrel.gov EVI-Equity: Electric Vehicle Infrastructure for Equity Model
	EVI-OnDemand: Electric Vehicle Infrastructure – On Demand Tool Vehicle Type: Light-duty vehicles \| Tool Type: Simulation platform
Description Charging infrastructure demand modeling for electric ride-hailing services Capabilities Estimates the charging infrastructure needs of electrified ride-hailing fleets in urban areas Considers factors influencing the demand for mid-shift public-access fast charging, such as driver shift length and overnight charging access Target Users Vehicle manufacturers Charging network operators Electric utilities and public utility commissions Researchers Government entities Contact EVI-X@nrel.gov EVI-OnDemand: Electric Vehicle Infrastructure — On Demand Tool (GitHub)
	EVI-RoadTrip: Electric Vehicle Infrastructure for Road Trips Tool Vehicle Type: Light-duty vehicles \| Tool Type: NREL software
Description Charging infrastructure analysis for long-distance travel Capabilities Simulates EV energy consumption and charging demands for interregional long-distance travel along highway corridors to inform charging infrastructure deployment Examines the necessary number and location of charging stations and associated power demands on the electric grid, as well as the impact of infrastructure reliability Target Users Vehicle manufacturers Charging network operators Electric utilities and public utility commissions Researchers Government entities Contact EVI-X@nrel.gov EVI-RoadTrip: Electric Vehicle Infrastructure for Road Trips Tool EVI-Road Trip Lite (U.S. Department of Energy)
	U-Finder: Utility Finder for Identifying Electric Vehicle Infrastructure Installation Partners Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: Web tool
Description Charging infrastructure installation networking resources Capabilities Provides information about local utilities supporting infrastructure installation in a given state or ZIP code Includes rebates and incentives offered by utilities Target Users Charging network operators and site hosts Government entities Fleet operators Contact DOE-DOT.JO.TA@nrel.gov U-Finder: Utility Finder for Identifying Electric Vehicle Infrastructure Installation Partners (U.S. Department of Energy)
	EVI-DiST: Electric Vehicle Infrastructure – Distribution System Integration Tool Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: NREL software
Description High-fidelity distribution grid insights for utilities Capabilities Provides high-fidelity modeling to utility planners for better monitoring and control of increased EV charging loads at the grid scale Assesses impact of increasing EV adoption on distribution systems and implements practical control strategies to counter expected EV charging loads Target Users Electric utilities Researchers Contact EVI-DiST@nrel.gov EVI-DiST: Electric Vehicle Infrastructure – Distribution System Integration Tool

Site Design Tools

	EVI-InMotion: Electric Vehicle Infrastructure — In Motion Tool Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: NREL software
Description Dynamic and quasi-dynamic charging infrastructure design analysis Capabilities Performs city- and state-level feasibility and optimization analyses for large-scale deployments of dynamic chargers on public roadways Evaluates the impact of dynamic chargers on vehicle efficiency, driving range, and charging time Target Users Vehicle manufacturers Site hosts Electric utilities Researchers Fleet operators Contact EVI-InMotion@nrel.gov EVI-InMotion: Electric Vehicle Infrastructure — In Motion Tool
	EVI-EnSite: Electric Vehicle Infrastructure — Energy Estimation and Site Optimization Tool Vehicle Type: Light-duty vehicles \| Tool Type: NREL software
Description Charging infrastructure energy estimation and site optimization Capabilities Informs the design, development, and control of charging infrastructure, deployments, and station operations and service Integrates site energy management, energy storage systems, distributed energy generation, and non-flexible load modeling Simulates and compares charging operations under different system and site configurations and inputs (deterministic and stochastic) Target Users Charging network operators and site hosts Electric utilities and public utility commissions Researchers Fleet operators Contact EVI-EnSite@nrel.gov EVI-EnSite: Electric Vehicle Infrastructure — Energy Estimation and Site Optimization Tool
	EVI-EDGES: Electric Vehicle Infrastructure — Enabling Distributed Generation Energy Storage Model Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: NREL software
Description High-fidelity modeling for optimal design and control of behind-the-meter storage (BTMS) resources Capabilities Optimally sizes BTMS and distributed generation to enable DC fast charging Incorporates high-fidelity building energy models and closed-loop optimal control Supports analysis of multiple scenarios (location/climate, building type, utility rate structure), objectives (lifecycle cost, emissions, resiliency), and features (battery degradation, co-optimization of thermal and battery storage) Target Users Charging network operators and site hosts Electric utilities and public utility commissions Researchers Fleet operators Contact Margaret.Mann@nrel.gov EVI-EDGES: Electric Vehicle Infrastructure — Enabling Distributed Generation Energy Storage Model
	HEVII: Heavy-Duty Electric Vehicle Integration and Implementation Tool Vehicle Type: Heavy-duty vehicles \| Tool Type: NREL software
Description Multi-fidelity telematics-enabled vehicle and infrastructure design analysis Capabilities Leverages in-use vehicle data to evaluate the electrification potential and infrastructure requirements for commercial vehicle fleets Provides customized specifications and recommendations for optimal vehicle battery sizes, charging rates, and infrastructure placement Target Users Site hosts Researchers Fleet operators Contact Andrew.Kotz@nrel.gov HEVII: Heavy-Duty Electric Vehicle Integration and Implementation Tool
	EVI-Rental: Electric Vehicle Infrastructure – Rental Car Tool Vehicle Type: Light-duty vehicles \| Tool Type: Simulation platform
Description Simulation modeling of electrified rental car operations Capabilities Simulates operational aspects of rental car fleets such as vehicle dispatch, electric vehicle charging, customer wait time, and fleet volume Estimates charging demand Assists with charging infrastructure design at rental car facilities Quantifies how the electrification of rental car fleets affect grid loads, customer wait times, and life-cycle costs Target Users Rental car fleet managers and operators Airport transportation operators Contact athena.mobility@nrel.gov EVI-Rental: Electric Vehicle Infrastructure – Rental Car Tool
	EVI-Ratio: Electric Vehicle Infrastructure – Ratio Tool Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: NREL software
Description Planning the ratio and type of charging stations to vehicles in a fleet Capabilities Identifies number of fleet vehicles likely to transition to EVs in the next replacement cycle Determines how many Level 1, Level 2, and DC fast chargers are required at vehicles’ primary and secondary overnight dwell locations Target Users Site hosts Government entities Fleet operators Contact Cabell.Hodge@nrel.gov EVI-Ratio: Electric Vehicle Infrastructure – Ratio Tool

Financial Analysis Tools

	EVI-FAST: Electric Vehicle Infrastructure – Financial Analysis Scenario Tool Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: Spreadsheet
Description Charging infrastructure financial analyses Capabilities Provides quick, in-depth financial analyses based on generally accepted accounting principles and informed by infrastructure characteristics such as charger power ratings, usage, cost, and incentives as well as parameters such as electricity price and demand charges Estimates investor payback period, net present value, and break-even first-year charging costs and enables risk analyses Target Users Charging network operators Public utility commissions Researchers Fleet operators Contact Mike.Penev@nrel.gov EVI-FAST: Electric Vehicle Infrastructure — Financial Analysis Scenario Tool
	EVI-LOCATE: Electric Vehicle Infrastructure – Locally Optimized Charging Assessment Tool and Estimator Vehicle Type: Light-, medium-, and heavy-duty vehicles \| Tool Type: Web tool (forthcoming)
Description Charging station installation design analysis and cost estimation Capabilities Helps users determine where to locate charging stations and electrical equipment Calculates optimal wiring runs and assesses electrical capacity of equipment Estimates project costs based on local labor and material rates Target Users Charging network operators and site hosts Government entities Fleet operators Contact Cabell.Hodge@nrel.gov EVI-LOCATE: Electric Vehicle Infrastructure – Locally Optimized Charging Assessment Tool and Estimator

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.

EVI-X@nrel.gov

EVI-X Modeling Suite of Electric Vehicle Charging Infrastructure Analysis Tools

Three Types of Tools

Network Planning

Site Design

Financial Analysis

Network Planning Tools

EVI-Pro: Electric Vehicle Infrastructure – Projection Tool

Description

Capabilities

Target Users

Contact

EVI-Equity: Electric Vehicle Infrastructure for Equity Model

Description

Capabilities

Target Users

Contact

EVI-OnDemand: Electric Vehicle Infrastructure – On Demand Tool

Description

Capabilities

Target Users

Contact

EVI-RoadTrip: Electric Vehicle Infrastructure for Road Trips Tool

Description

Capabilities

Target Users

Contact

U-Finder: Utility Finder for Identifying Electric Vehicle Infrastructure Installation Partners

Description

Capabilities

Target Users

Contact

EVI-DiST: Electric Vehicle Infrastructure – Distribution System Integration Tool

Description

Capabilities

Target Users

Contact

Site Design Tools

EVI-InMotion: Electric Vehicle Infrastructure — In Motion Tool

Description

Capabilities

Target Users

Contact

EVI-EnSite: Electric Vehicle Infrastructure — Energy Estimation and Site Optimization Tool

Description

Capabilities

Target Users

Contact

EVI-EDGES: Electric Vehicle Infrastructure — Enabling Distributed Generation Energy Storage Model

Description

Capabilities

Target Users

Contact

HEVII: Heavy-Duty Electric Vehicle Integration and Implementation Tool

Description

Capabilities

Target Users

Contact

EVI-Rental: Electric Vehicle Infrastructure – Rental Car Tool

Description

Capabilities

Target Users

Contact

EVI-Ratio: Electric Vehicle Infrastructure – Ratio Tool

Description

Capabilities

Target Users

Contact

Financial Analysis Tools

EVI-FAST: Electric Vehicle Infrastructure – Financial Analysis Scenario Tool

Description

Capabilities

Target Users

Contact

EVI-LOCATE: Electric Vehicle Infrastructure – Locally Optimized Charging Assessment Tool and Estimator

Description

Capabilities

Target Users

Contact

Related Research

Contact