Energy expert Steve Letendre discusses OEM warranty precedents for vehicle-to-grid (V2G) bidirectional charging with host Shayle Khan.
Assertion Supported
Letendre: Most new electric school buses are bidirectional capable
“Most all of the school bus electric school buses that are coming off the lines are bi-directional capable, and there are now several higher power DC bi-directional chargers that are compatible with those school buses.”
Assertion Supported
Letendre: 10 kW bidirectional EV charger can earn $3,000 annually via grid services
“In some jurisdictions where, ah, utilities are compensating, ah, resources for providing peak shaving in the 200 to 300 kW, ah, per season, ah, range. You know, for a 10 k, kW bidirectional charging system, you could potentially earn, you know, 3000 dollars pe…”
Prediction Not checkable as stated
Letendre: AC V2G Will Likely Be Lower Cost for Residential Light-Duty EVs
“The jury suggests that for residential light-duty vehicles that the VDG AC will offer likely a lower cost option for consumers.”
Insight
Letendre: 10kW V2G grid discharging causes far less battery degradation than driving
“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…”
Prediction Not checkable as stated
Letendre: EVs will be the largest source of grid flexibility
“There have been numerous studies that have shown that electric vehicles are the single largest source of grid flexibility that will be on the grid in the not too distant future”
Assertion Supported
Letendre: Tesla Cybertruck Uses AC V2G Architecture, While Ford and GM Use DC
“The Tesla Cybertruck V to G product is an AC architecture. So there's an onboard inverter capabilities and the Ford F- one-fifty and the GM suite of EVs that have V to H and increasingly V to G are based on that offboard V to G DC architecture.”