. . . charge up battery packs when you have excess power, and cost of production is very low,
. . . discharge it when the cost of power production is high, and
. . . this effectively lowers the average cost to the end customer.
If 2/3 of all electricity generation in the USA, is "Rejected Energy."
. . . doesn't this effectively triple, the average cost to the end customer.
How much of renewable electricity generation is rejected?
7-11-2017 Source: #Tesla: Changing Politics & Power