Letendre: 10kW V2G grid discharging causes far less battery degradation than driving
Steve Letendre · The multi-billion dollar promise of vehicle-to-grid integration · Jul 23, 2026 · at 24:20
Energy expert Steve Letendre explains the physical mechanics of EV battery degradation under V2G grid services compared to driving.
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“When you think about using an EV battery for traction in a vehicle, you know, you've got a 150, 125 kW, whereas if you're using it for grid services, you know, you're using maybe 10 kW through the bi-directional charger. So the rate of discharge and the impact on the battery is, is less when you're discharging at a lower rate. Relative to what you're actually doing when you're driving the vehicle, accelerating into traffic and whatnot.”
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