I don't think that would ever commonly be viable or at least not for a long time. EV's are a lot more than batteries and are proportionally stupidly expensive.
If the electricity net arbitrage was worth the degradation of the battery then .... companies would do it themselves and just build the batteries for cheaper at scale.
>A UK energy company already has a Vehicle to Grid tariff.
And is that actually worth it to anyone who does the math?
An optimistic 161 pound saving compares to how many of my battery cycles for example? My car costs 50-60k so battery degradation is not nothing.
The arbitrage difference between filling your battery cheaply and discharging when prices are high is greater than any theoretical wear on your battery.
Even better if you are being paid to charge your battery.
The battery is already a sunk cost. Doesn't matter how expensive the battery was if it's already sitting on your drive.
I did a quick fag packet calculation and even today 10% of everyones EV battery would be enough to cover the grid for an hour. That's enough of a buffer to spin up gas turbines for example, so you can actually shut them completely off.
>The battery is already a sunk cost. Doesn't matter how expensive the battery was if it's already sitting on your drive.
My Hyundai Ionic 6 rolling battery costs 50-60k.
Spending a cycle of it's battery is not a discardable cost.
Some will still take it but this seems just like a more deceptive version of those uber driver that get a pricey car and then find out that combined with maintenance, degradation/devaluation and other hidden costs they don't actually make that much driving around.
>I did a quick fag packet calculation and even today 10% of everyones EV battery would be enough to cover the grid for an hour.
I presume you deduct more than half of the rolling battery capacity out there.
You can't discharge those to 0% shouldn't charge them to 100%, many won't be charged fully (or connected)
+ If I need to leave in the morning like most I don't want to necessarily be dropping charge into the grid.
>My Hyundai Ionic 6 rolling battery costs 50-60k. Spending a cycle of it's battery is not a discardable cost
Problem is we don't have good data on actual costs. So we don't know if we're talking about something substantial or something hypothetical. Absent that data I think my comment is fair.
>I presume you deduct more than half of the rolling battery capacity out there
No. We are talking about 10% of battery capacity so your battery at 80% would only need to go down to 70%.
A problem we have in the UK at the moment is that we have gas turbines running even if not needed just incase the wind suddenly drops. It takes (or can take) about an hour to spin up a turbine from cold. So a battery supply that could cover that hour would mean we could use a lot less gas. Most of the time it isn't even used, and if it is, most probably won't use that full 10% and once the gas turbines have spun up it could recharge the batteries.
To link it back to the earlier comment, even if the maths is bad for EV as battery storage, you can still use it as battery of last resort. It would be expensive, so ev owners would still be up on the deal, but there would be a system on place to actually use them when actually needed.
