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625.49 Bi-Directional EVSE Power – “Island Mode”

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Change Summary

  • The NEC touched on bi-directional power from Electric Vehicles (EVs) previously in the Code. Now the NEC has coined the term “Island Mode”.

NEC®Text

Article 625 Electric Vehicle Power Transfer System
625.49 Island Mode. EVPE and bidirectional EVSE that incorporate a power export function shall be permitted to be part of an interconnected power system operating in island mode.

Material taken from the National Electric Code. is reprinted with permission from NFPA 70., 2023 edition. National Electrical Code®, Copyright 2022, National Fire Protection Association, Quincy, MA. All rights reserved.

Expert Analysis

This article addressing bidirectional power from EV's takes us a step closer to the day when electric vehicles can power our homes during a power failure or store solar energy during the day to be used at night.

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