EVI-Pro: Electric Vehicle Infrastructure – Projection Tool

evi-pro logo

NREL's Electric Vehicle Infrastructure – Projection (EVI-Pro) tool estimates how much electric vehicle (EV) charging infrastructure is needed in a designated area to meet a given demand.

Developed in collaboration with the California Energy Commission, EVI-Pro draws on detailed data about personal vehicle travel patterns, EV attributes, and charging station characteristics to estimate the required quantity and type of charging infrastructure.

Key Capabilities and Uses

A key player in NREL's world-class EV charging infrastructure analysis capabilities, EVI-Pro is a part of the EVI-X modeling suite for charging network planning, site design, and financial analyses.

Researchers use EVI-Pro to:

  • Analyze the typical daily travel patterns of light-duty vehicles, estimate related charging demand, and design infrastructure capable of meeting the demand
  • Account for variations and uncertainty in vehicle and charger technologies, user demographics, market adoption conditions, the shared use of chargers, and EV travel and charging preferences.

A simplified, web-based version of the tool—EVI-Pro Lite—is geared for use by U.S. cities and states to estimate their charging infrastructure needs and the associated power demands on the grid.

Case Study: Infrastructure Analysis for California

NREL helped the California Energy Commission pinpoint the number of EV chargers needed to meet the state's ambitious zero-emission vehicle and greenhouse gas reduction goals. With a focus on light-duty vehicles, NREL's analysis suggested that up to 1.2 million chargers—beyond those located at single-family homes—may be necessary to support to support 8 million zero-emission vehicles. For more information, refer to the Charging Infrastructure Analysis Aims To Help California Meet ZEV Goals news article.


The following publications provide detailed information about NREL's EV infrastructure analyses. For NREL's full collection of documents, visit the Publications Database.

The 2030 National Charging Network: Estimating U.S. Light-Duty Demand for Electric Vehicle Charging Infrastructure, NREL Technical Report (2023)

EV Charging Infrastructure Assessment—Analyzing Charging Needs To Support ZEVs in 2030, California Energy Commission Report (2021)

Meeting 2025 Zero Emission Vehicle Goals: An Assessment of Electric Vehicle Charging Infrastructure in Maryland, NREL Technical Report (2019)

Charging Electric Vehicles in Smart Cities: An EVI-Pro Analysis of Columbus, Ohio, NREL Technical Report (2018)

Regional Charging Infrastructure for Plug-In Electric Vehicles: A Case Study of Massachusetts, NREL Technical Report (2017)


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Eric Wood

Data Science Research Engineer