Can you elaborate what you mean by that? The grid is a battery on a scale of one household connecting to this infinite supply or infinite sink of electricity, b

Can you elaborate what you mean by that? The grid is a battery on a scale of one household connecting to this infinite supply or infinite sink of electricity, but on a wider scale (and physical world as opposed to accounting) , you generate energy during the day and someone else needs to generate it at night, so it's in no way a battery.