400V x 63A=25.2kVA

Obviously they need nearly 2x power boost to reach 43.5kW. I assume this will require some temporary energy storage (a big UPS) whih accumulates energy from the grid between “fast charges”. But storing and recovering energy introduces energy losses.

So, why not simply charge spare car batteries and work on standardising batteries and switch technology?

400V x 63A=25.2kVA

Obviously they need nearly 2x power boost to reach 43.5kW. I assume this will require some temporary energy storage (a big UPS) whih accumulates energy from the grid between “fast charges”. But storing and recovering energy introduces energy losses.

So, why not simply charge spare car batteries and work on standardising batteries and switch technology?

1) With its population of 40,000, Bornholm is very separate about 70miles east of Denmark with Sweden almost in between. Bornholm has some thermal power plants but has mostly depended on the 60kV power line to Sweden.

2) Sweden is not an ordinary neighbor because it has huge hydro to regulate and backup their power.

While Maine can certainly buffer a tiny island like Fox, I doubt Maine’s grid could buffer a big community using predominately wind turbines and lots of quick charging cars.

Wind capacity can readily be consumed by a grid when its 10% of supply because thats in the range of load variability and predicitability. Once wind gets to 20%, the grid needs to scale up its peaky supplies such as gas or have a good HVDC line to a neighbor with hydro.

So Fox Island is not really 100% wind powered when Maine provides their regulation & backup.

1) With its population of 40,000, Bornholm is very separate about 70miles east of Denmark with Sweden almost in between. Bornholm has some thermal power plants but has mostly depended on the 60kV power line to Sweden.

2) Sweden is not an ordinary neighbor because it has huge hydro to regulate and backup their power.

While Maine can certainly buffer a tiny island like Fox, I doubt Maine’s grid could buffer a big community using predominately wind turbines and lots of quick charging cars.

Wind capacity can readily be consumed by a grid when its 10% of supply because thats in the range of load variability and predicitability. Once wind gets to 20%, the grid needs to scale up its peaky supplies such as gas or have a good HVDC line to a neighbor with hydro.

So Fox Island is not really 100% wind powered when Maine provides their regulation & backup.

I find it disappointing that you would say this, especially as a website that’s promoting alternative fuels, like electricity. Our Mini E, when fully drained (which rarely happens) can be charged in 2 and a half hours in our garage (yielding about 100 miles of range).

While at times it would be nice to fill up in 6 minutes (on longer trips, etc), not sleeping 6 hours per night would not be a legitimate reason to visit a fast charing station. Even if you only sleep 4 hours per night, chances are your car is still sitting parked.

I just wanted to clarify that it’s not either 6 hours or 6 minutes. There are plenty of compromises between the two.

I find it disappointing that you would say this, especially as a website that’s promoting alternative fuels, like electricity. Our Mini E, when fully drained (which rarely happens) can be charged in 2 and a half hours in our garage (yielding about 100 miles of range).

While at times it would be nice to fill up in 6 minutes (on longer trips, etc), not sleeping 6 hours per night would not be a legitimate reason to visit a fast charing station. Even if you only sleep 4 hours per night, chances are your car is still sitting parked.

I just wanted to clarify that it’s not either 6 hours or 6 minutes. There are plenty of compromises between the two.