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.
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.