Re: The Physics Behind the Spanish Blackout

My solar PV system has battery storage and I subscribe to Tesla's Virtual Power Plant. When the grid is under stress I allow up to 50% of the storage to be used by the grid for which I get paid $2 per kWh.

Not bad when you consider they charge $0.15/KWHr to sell that electricity
to you in the first place!  You're just letting someone take your car (house)
for a drive -- without any mechanical wear-and-tear on a vehicle, any
risk of an "accident", theft, etc. -- and are being reimbursed for that
"generosity".  Much more generous than many "friends" would be in
reimbursing you for their convenience!
What sort of capacity do you have and how easily do you "top it off"
purely from solar?

I usually get a few hours notice through the App on my phone and I can opt-out for any event. This is in California although Tesla operates similar programs throughout the country.

So, they have good enough models to *predict* when there will be a need?
Or, is there *always* a need and they just "spread the wealth"?

Tesla vehicles do not (yet) support Vehicle to Grid (V2G) operation although the extra hardware required is minimal as the conversion from AC to DC in the car is already pretty much bidirectional to achieve high-efficiency. (Just using Diodes is too inefficient)
 

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