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DOE OSTI · 3377786

EVs@Scale: NextGen Profiles EVSE Characterization 2025

Davidson, Keith [National Laboratory of the Rockies (NLR), Golden, CO (United States)] (ORCID:0000000226173423)·Paschedag, Darren [National Laboratory of the Rockies (NLR), Golden, CO (United States)]·Tolbert, Isaac [National Laboratory of the Rockies (NLR), Golden, CO (United States)]·Jackson, Derek [National Laboratory of the Rockies (NLR), Golden, CO (United States)] (ORCID:0000000248854502)·Gadamsetty, Pranav [National Laboratory of the Rockies (NLR), Golden, CO (United States)]·Kogalur, Namrata [National Laboratory of the Rockies (NLR), Golden, CO (United States)]·Gaxiola, Marco [National Laboratory of the Rockies (NLR), Golden, CO (United States)]·Shinde, Saroj [National Laboratory of the Rockies (NLR), Golden, CO (United States)]
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Abstract

As part of the U.S. DOE EVs@Scale consortium, the Next-Generation Profiles (NextGen Profiles [NGP]) project presents analysis and results from the characterization of high-power conductive and wireless charging infrastructure. High Power Charging equipment is capable of recharging electric vehicle traction batteries at power levels of 200KW and above. Electric Vehicle Service Equipment (EVSE) characterization involves testing over a wide range of DC charging currents and voltages during nominal and off-nominal conditions. This testing allows for a better understanding of the impact that high-power charging will have on the electric grid. A common set of standard test plans, procedures, and data requirements were applied to the characterization in this document with minor updates and improvements. This report covers all conductive characterization activities performed between October 2024 and September 2025 on the Delta Electronics 350KW Electric Vehicle Charging System, consisting of power cabinet model EIDN-U350KTA01 and dispenser model EIDD-U350SSUUAEG-350.Key Findings include: Output regulation, Efficiency and power factor, Load management, Grid Resilience, Smart Charge Management (SCM) performance, Thermal control system performance, Multi-port simultaneous charging performance, and Selected performance comparisons with other EVSEs characterized in the NextGen Profiles project. Hot and cold temperature testing was not conducted on the Delta 350KW due to laboratory limitations. Future research could include continued testing the Delta hardware under off-nominal temperature conditions including multi-port/multi-session simultaneous charge testing, in addition to collecting data on other high-power conductive chargers to augment.

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25 ENERGY STORAGE33 ADVANCED PROPULSION SYSTEMSbatteriesbatteryelectric vehicle chargerselectric vehicle chargingelectric vehiclesEVEV chargersEV chargingEVsEVSEEVSEshigh power charging

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Davidson, Keith [National Laboratory of the Rockies (NLR), Golden, CO (United States)] (ORCID:0000000226173423), Paschedag, Darren [National Laboratory of the Rockies (NLR), Golden, CO (United States)], Tolbert, Isaac [National Laboratory of the Rockies (NLR), Golden, CO (United States)], Jackson, Derek [National Laboratory of the Rockies (NLR), Golden, CO (United States)] (ORCID:0000000248854502), Gadamsetty, Pranav [National Laboratory of the Rockies (NLR), Golden, CO (United States)], Kogalur, Namrata [National Laboratory of the Rockies (NLR), Golden, CO (United States)], Gaxiola, Marco [National Laboratory of the Rockies (NLR), Golden, CO (United States)], Shinde, Saroj [National Laboratory of the Rockies (NLR), Golden, CO (United States)]. 2026-06-16. EVs@Scale: NextGen Profiles EVSE Characterization 2025. https://doi.org/10.66816/tp4437782

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