Vehicle-to-grid (V2G) back up power for the world

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EVs equiped with vehicle-to-grid (V2G) technology could supply all of the world’s short-term grid energy storage requirements by 2030.

Abstract
The energy transition will require a rapid deployment of renewable energy (RE) and electric vehicles (EVs) where other transit modes are unavailable. EV batteries could complement RE generation by providing short-term grid services. However, estimating the market opportunity requires an understanding of many socio-technical parameters and constraints. We quantify the global EV battery capacity available for grid storage using an integrated model incorporating future EV battery deployment, battery degradation, and market participation. We include both in-use and end-of-vehicle-life use phases and find a technical capacity of 32–62 terawatt-hours by 2050. Low participation rates of 12%–43% are needed to provide short-term grid storage demand globally. Participation rates fall below 10% if half of EV batteries at end-of-vehicle-life are used as stationary storage. Short-term grid storage demand could be met as early as 2030 across most regions. Our estimates are generally conservative and offer a lower bound of future opportunities. Read paper in Nature:

"Electric vehicles as a flexible power source for grid services and integration of renewable energy." The study examines the potential of electric vehicles to provide grid services, such as balancing supply and demand, and to support the integration of renewable energy sources. The authors conclude that electric vehicles have the potential to significantly contribute to the flexibility of the power system and to the integration of renewable energy sources. However, the paper states that more research is needed to fully understand the economic and technical aspects of this potential."

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"Senator Nancy Skinner spoke at the California Senate Energy, Utilities and Communications Committee last week (18 April) in support of Senate Bill 233 (SB 233), which would require most EVs and EV supply equipment in California to have bi-directional charging capabilities."

"All electric vehicle (EV) manufacturers should make bi-directional charging possible to allow their batteries to be used as energy storage devices for homes or businesses, according to a California Senator."

"When it comes to installing batteries at households or businesses, the battery in an average electric vehicle (EV) will likely have a far greater capacity. For example, while Tesla’s Powerwall residential battery system comes with 12.5kWh capacity as standard (although they can be stacked together to make larger capacities), even Tesla’s entry-level Model 3 rear-wheel drive EV has 57.5kWh usable battery capacity."

https://www.energy-storage.news/cali...-senator-says/

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MG ZS EV - V2L
BYD Atto 3 - V2L
Hyundai Ioniq 5 - V2L
Kia EV6, Niro EV - V2L
Genesis GV60, GV70, G80 - V2L
Nissan Leaf - V2H*, V2G**

V2H* involves using energy from your EV to power your home or business. This works in the same way a stationary home storage battery (like the Tesla Powerwall 2) does in reducing grid consumption.
V2G** involves using energy from your EV to stabilise the grid. This is done through a ‘smart’ bidirectional charger, which is typically part of a VPP (Virtual Power Plant). Subject to defined parameters, your energy retailer will control when your battery is charged or discharged.

Read article by ZeCar.com: https://zecar.com/resources/which-el...-%20V2H,%20V2G

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https://www.youtube.com/watch?v=8JbbsvGBYRc
https://www.youtube.com/watch?v=t7q02OMLGnI&t=13s