beezlebub33 t1_j4wls9p wrote
Reply to comment by Bewaretheicespiders in Electric vehicle batteries alone could satisfy short-term grid storage demand by as early as 2030 by BlitzOrion
>Kinda failing to consider that charging the EV is expected to create
>
> the peak demand.
How so?
Take a look at the duck curve. The idea is that you charge at work which means that it charges during the middle of the day, when solar is greatest.
The peak demand is in the evening 6-9 pm or so. That's when you want to discharge back to the grid, and then charge the car again 3-6 am.
The only place where there is overlap between high grid usage and people wanting to charge their car is immediately after they get home from work. It's easy to disincentivize that with variable rates.
Bewaretheicespiders t1_j4wpyt5 wrote
>The peak demand is in the evening 6-9 pm or so.
That varies greatly depending on where you are and the season.
https://www.eia.gov/todayinenergy/detail.php?id=42915
In Texas for example, the smallest margins between supply and demand happens during hot summer afternoon where you lose wind power and AC runs the hardest. Just before people need their car to go home.
In cold climate where they dont use gas for heating (e.g. Quebec, and assuming we want to get rid of fossil fuel, every cold climate area will eventually use electricity for heating) the smallest margins are in winter just before sunrise, when you dont have solar either. Just before people need their car to go to work.
beezlebub33 t1_j4xeugq wrote
I will agree that it definitely depends on where you are and the grid.
BTW, I don't think that's the link you wanted to include. Although OpenCV is really cool. Nerd on, bro.
Bewaretheicespiders t1_j4xfoaj wrote
Haha that's been in my bookmarks for years after having to make a quick demo. Dont know how I ended up pasting that instead of the link. Computer vision kinda is my day job.
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