You are fundamentally incorrect and either do not understand what a capacitor is or are unwilling to use the correct language in an attempt to prove a point...which unfortunately undermines it. Additionally, smart grids are already capable of transitioning between sources and solar or wind with battery storage are more cost effective than fossil fuel generation today: https://cleantechnica.com/2023/04/15/wind-solar-power-now-th...
Sorry I should have said LIKE a capacitor in terms of function. You are correct they are not a capacitor in terms of design and function. I'd have expected people here be able to understand that.
Fundamentally, at a grid level, lithium batteries can't provide what the average person considers "storage", that is running the grid from said storage. When people hear lithium battery, they think of a phone or laptop - the battery is the sole source of power for 6-12 hours.
On a grid however, lithium batteries provide very short duration stabilisation from "noisy" supply, absorb spikes in generation and boost troughs.
You cannot cost effectivly power the grid from lithium batteries on a still night. Pumped hydro etc are needed to cover prolonged periods of low supply (and absorb prolonged periods of oversupply).
Fundamentally, at a grid level, lithium batteries can't provide what the average person considers "storage", that is running the grid from said storage. When people hear lithium battery, they think of a phone or laptop - the battery is the sole source of power for 6-12 hours.
On a grid however, lithium batteries provide very short duration stabilisation from "noisy" supply, absorb spikes in generation and boost troughs.
You cannot cost effectivly power the grid from lithium batteries on a still night. Pumped hydro etc are needed to cover prolonged periods of low supply (and absorb prolonged periods of oversupply).