EbS-P
Minister of Fire
And probably not taking into account the waisted energy that was pumped into the tank just to be exhausted as heat. I generally could see how the local grid (that probably is the fact that the station is supplied by limited single phase. I’ll have to look at my local convenience store. I bet it’s 3 phase.There is also a time factor not being accounted for. In reality those pumps are not all pumping at 100% of the time. Its sized for peak gas demand.
When you do the math, the extra energy load on the grid from switching to EVs is about 25%. And if charging is done during off peak times, then the existing equipment can handle and distribute it (roughly) and the utility makes 25% more money.
That estimate does not account for the in efficiency gain if BEVs. But yeah that’s in the ballpark. I imagine time if use billing will become more financially rewarding or the flat rate structure costs will increase substantially to promote charging at night.. I can imagine special rates for an outlet or device that is load interrupted but guarantees a certificate number kwhs per day.I was surprised by that number of 25%, but I get the same. (Since I googled, I thought to not let that go to waste).
If I do the math using google data, I get this:
-we use 135 billion gallons of gasoline a year in the US (www.eia.gov)
-a gallon of gasoline is 120000 BTU
-that equates to 135E9 * 120E3 = 1.6E16 BTUs in energy from gasoline.
-Using 3412 BTU for a kWh, this equates to 4.7E12kWh.
Googling the total amount of kWhs that the US uses in electricity per year as
3.9E12 kWh. (United Nations statistics division, per google).
That is indeed about 21%.
Adding 25% load to a grid that sometimes already has capacity issues indeed depends a lot on the timing of when that's added. Ideally it'll fill the valleys in the variable load curve during a 24 hr period.
I wonder how much the people will listen to "pls charge at night only", because if they don't, there'll be much more brown-outs.