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23/04/21
07:56
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Originally posted by acorn
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Yep. To replace a power station like that will take some doing .
However, I'll just demonstrate a few numbers for you.
Let's suppose we have an ev fleet down the track. Not tomorrow of course but we know we will one day. Especially for domestic travel.
It's generally agreed that our domestic fleet is parked 95% of it's life.
A full size Tesla battery can be nearly 100kwh so we'll say that if they were all Teslas and they make 50% of their batteries available for firming. That means each car still has a couple of hundred ks of driving up ( 50kwh ) it's sleeve. Also, firming or peaking may only require a very small amount of power for a very short period so they won't need 50kwh but I won't bother speculating on that here.
So , at 50kwh per car it will take 70,000 cars to be the equivalent of Loy Yang power station. That's 70, 000 cars that can do what Loy Yang does for one hour.
We buy around 1 million cars per year in Australia. Taking it to the extreme , that would be about 14 Loy Yangs per year of storage becoming available.
And here's the thing. That storage is effectively free as it comes with the car.
That's without talking about household storage, parked commercial vehicle storage like bus fleets etc.
Note that I'm talking about today's technology. We all know how that is going to improve going forward.
I don't think storage will be a problem in the future.
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@acorn .
I like the logic and numbers you are using as an example. The one thing regulators and governments need to do to take advantage of the car battery storage potential is to make sure they are all plugged in when stationary and I mean parked. That will require some extra infrastructure outside of the home garage.
This is the future and we all need to get on board.