Learjet wrote:
Some of the new Tesla's can charge at rate of 900 miles per hour with a 250kw charger....charging speeds are going up with some of the new vehicles.
Any idea how much it costs to run a 250kw connection to a charging station?
A 200amp @ 240v household connection peaks at around 48kw but in reality, the power company doesn't provide 48kw for each house in the neighborhood because generally, household draws never come close to 48kw. They significantly de-rate the upstream connection because they know it won't be used.
A 250kw charger will be pulling it's full rating probably more like 260-280kw (accounting for losses) and it will do it continuously while charging.
Now if you have a station with 10 charging stations, that means they need a supply equal to 2600-2800kw. Getting a connection on that size range in to the station can easily run into the low to mid 6 figure range. Amortize that and add in the cost of the actual power and don't be surprised when the cost is higher than gasoline. If you try to install one out away from major cities, it could easily move up into the 7 figure range.
Admittedly, most charging will be slow charging at home but don't expect 250kw chargers to be common place. Most likely they will always be specialty items.
