4 ms·
There are about 40 millions cars in France: https://fr.wikipedia.org/wiki/Parc_automobile_fran%C3%A7ais https://fr.wikipedia.org/wiki/Parc_automobile_fran%C3%A
by guerby 6y ago
There are about 40 millions cars in France:
https://fr.wikipedia.org/wiki/Parc_automobile_fran%C3%A7ais https://fr.wikipedia.org/wiki/Parc_automobile_fran%C3%A7ais
Cars are parked 95% of the time.
Even a smallish 2 kW car to grid capacity would give 80 GW of instantaneuous dispatchable power to the grid. And cars are distributed on all the territory.
If average battery is about 50 kWh that gives a whole day of France max demand.
And of course on the other way 80 GW of dispatchable demand.
For reference electro-nuclear production capacity is 62 GW in France.
A fully electric car fleet means the grid will just never go down.
- jl6 6y agoHow would car owners be compensated for the grid using their car’s battery? More wear and tear from more charge/discharge cycles, and the potential for the car to not be fully charged when the owner needs it?
- guerby 6y agoThat's the whole issue with grid and smart grid, what is the true price of electricity? :) This is all software controlled, all new cars in Europe have a SIM card (eCall law), electric cars are computer on wheels, nothing is missing but the will to do it. My Tesla model 3 SR+ has 50 kWh of NCA batteries with about 1000-1500 cycles, so about 600k km (to 70% of original capacity). Petrol car leave the european market with about 200-250k km on the odometer (source: discussion with a car journalist). If you buy a Tesla model 3 SR+ right now in Europe it's made in China with LFP chemistry which is much more durable 3000-6000 cycles to about 2 millions km. That gives plenty of room to play with car batteries without too much detriment. And I assume you'll be able to limit discharging to some value to avoid getting stuck on your parking :).
- overscore 6y agoIn Ireland, eCall was only accepted on the condition that it only ever be used for ACR and no other purpose, so I don't think we'll see any EU standards using that eSim for charge control.
- guerby 6y agoI don't think for example my Tesla model 3 has two distinct SIM one for eCall and another one for other data. Do you have a link to Ireland law about eCall? In Europe GDPR force to require consent for personnal data use like most car data is, once consent is given I see no reason not to use the already present SIM for eCall for other purposes.
- read_if_gay_ 6y agoI suppose you could get financial compensation (maybe in the form of cheaper power) if you hook your battery up. But I think the fact that your car battery might not have enough power when you need it is going to be a dealbreaker for many people.
- gorbypark 6y agoI think if all parking infrastructure was equipped with “smart” charging equipment, then it wouldn’t be much of a problem, I don’t think. In the future, theoretically, most cars will be electric, and if the current pattern of having a car parked 95% of the time holds true, then only a small percent of each car’s battery would be needed to balance the grid.