On February 19, 2025, the National Electrical Manufacturers Association (NEMA) announced its new Electric Vehicle Supply Equipment (EVSE) Power Export Permitting Standard. This standard sets the guidelines for electric vehicle (EV) owners, enabling them to use their vehicles as mobile energy storage units and sell any surplus energy back to the electrical grid.

What This Means for Electric Vehicle Owners

The new standard establishes essential technical specifications that allow for bidirectional charging. Unlike the traditional one-way charging systems, this technology permits energy to flow both to and from electric vehicles. This means that EV owners can harness the power stored in their vehicles and transfer it back to the grid when needed.

Key Features of the Standard

The EVSE Power Export Permitting Standard covers vital aspects including electrical specifications, communication protocols, and cybersecurity measures. These elements are crucial for ensuring safe and effective energy exchanges between the vehicle and the grid.

Bidirectional Technology

With advancements in Vehicle-to-Grid (V2G) and Vehicle-to-Building/Home (V2B/V2H) technologies, electric vehicles can serve as practical energy resources. This opens up new possibilities for homeowners and businesses, allowing them to use their vehicles not only for transportation but also as sources of backup power during outages or peak demand times.

Financial Benefits for EV Owners

This standard introduces potential financial incentives for electric vehicle owners. By storing energy during off-peak periods and selling it back to the grid during times of high demand, owners can benefit economically, potentially lowering their electricity costs and even generating income.

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Strengthening the Electrical Grid

Patrick Hughes, NEMA’s Senior VP of Technical Affairs, emphasized the importance of these technologies for enhancing grid reliability. He stated, “Advancing bidirectional charging technologies will significantly improve our nation’s grid resiliency, enabling electric vehicle owners to maximize the utility of their cars.”

Implementation of the Standard

NEMA’s Mobility Sector created this standard to help local governments establish effective permitting processes for these technologies. Homeowners and business owners will benefit from regulations that facilitate the integration of electric vehicles into the energy ecosystem.

The introduction of NEMA’s Electric Vehicle Supply Equipment Power Export Permitting Standard is a transformative step for electric vehicle owners. This development enhances the value of owning an electric vehicle, allowing homeowners and businesses to tap into new energy management strategies. As more jurisdictions adopt this standard, the ability for electric vehicle owners to sell excess energy back to the grid will pave the way for a more sustainable and resilient energy future. Electric vehicles are evolving beyond mere transportation; they are becoming essential tools in optimizing energy use and contributing to a more efficient energy landscape.

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