EPRI updates electric vehicle planning tool to identify available capacity

Reserved parking for electric vehicles and charging stations at Walmart in New Jersey, Electrify America fast charging stations. Credit: Ken Fields via Flickr.

As part of its EVs2Scale2030 initiative, EPRI announced an expansion of its eRoadMAP tool, providing load hosting capacity, or power capacity, for 10 large utilities in five states, with plans to expand nationwide.

This information is meant to help fleet operators, logistics providers, and charging site developers identify available capacity that is more likely to accommodate electric vehicle (EV) charging sites.

EPRI’s eRoadMAP, launched in November 2023, is a resource intended to help industry stakeholders plan for the energy and infrastructure needed to serve light-, medium-, and heavy-duty EVs and explore how quickly EVs are expected in different regions. The tool can assist fleet operators, logistics providers, charging service providers, and other stakeholders in prioritizing electrification projects based on where power capacity is available as timelines may be shorter to launch charging stations at these locations, EPRI said.

eRoadMAP showing ConEd’s available capacity in an area where several major logistics providers are located (Credit: EPRI)

The power capacity information includes data from 10 utilities in California and the northeast region:

  • California: Southern California Edison, Pacific Gas & Electric, and Los Angeles Department of Water and Power
  • Massachusetts: National Grid
  • New York: National Grid, Con Edison, Orange & Rockland Electric Company, Central Hudson Gas & Electric, New York State Electric & Gas, and Rochester Gas and Electric
  • New Jersey: Orange & Rockland Electric Company
  • Rhode Island: Rhode Island Energy


EPRI aims to further expand the data nationwide. In cases where hosting capacity maps are not available, EPRI will secure substation-level location, capacity, and distribution voltage information from the utility. Simultaneously, EPRI is integrating utility service territory maps representing all 3,200 utilities in the U.S. into its eRoadMAP for identification and reference.

“To make meaningful strides in electrifying transportation over the next decade – a relatively short period of time – we need to simplify the complex interface between thousands of electric utilities and tens of thousands of fleet operators and charging providers,” said EPRI Director of Transportation Britta Gross. “As part of our mission to serve the public interest, EPRI is collaborating with stakeholders across the utility, fleet, and vehicle manufacturing industries to feed critical data into eRoadMAP – an increasingly powerful tool that arms electrification leaders with the information needed to plan and prioritize charging projects and grid upgrades.”

“This tool increases transparency and enables Amazon and others in the industry to assess where power is readily available in order to bring more electric vehicles to the road quickly,” said Chris Atkins, director of worldwide operations sustainability at Amazon. “Publication of the capacity maps from more utilities and participation from more fleets across the country will advance our collective electrification efforts.”

“Con Edison is thinking more boldly about ways to accelerate the adoption of electric vehicles in our service territory, while simultaneously strengthening the sustainability of our energy grid to prepare for the increase in demand,” said Britt Reichborn-Kjennerud, director of e-mobility and demonstrations at Con Edison. “We are proud to participate in the expansion of EPRI’s eRoadMAP™, which will help our customers identify available grid capacity that can accommodate new charging sites and support our goal of transitioning more New Yorkers away from fossil fuels and toward a cleaner transportation future.”

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