The impossibility of storing wind and solar power to compensate for sunset and calm weather is pure arithmetic; the claims that it can be done economically, pure delusion.
Sure, when they’re not exploding into toxic fireballs, giant lithium-ion batteries can store power generated (from any source) and release it on demand. However, the staggering cost associated means that they are only ever used at the margins to help balance the grid, over brief periods. What is known as frequency control.
Beyond that, there isn’t a single example, anywhere in the world, of grid-scale storage of wind and solar power using batteries of any description.
As David Wojick outlines in the piece below, those who believe that a few batteries can save us from the chaotic delivery of wind and solar better start stocking up on candles.
Windless nights make net zero impossible
CFACT
David Wojick
10 June 2024It is very simple. The cost of storing electricity is so huge it makes getting through a single windless night under a net zero wind, solar, and storage plan economically impossible.
This is especially true of cold nights where blackouts can be deadly. I recently made a legislative proposal to Pennsylvania along these lines so let’s use them as our example, keeping in mind that this is true everywhere.
Click below to continue reading…
Battery Cost Blowout: No Economic Way of Storing Wind & Solar Power
Real News Australia 
Granted batteries maynt be reliable, but there are ways to build-in electricity use, ie at surplus times, dish and clothes wash, store thermal or cooling mass, etc