[kumarvvr]

> What we need is a storage technology with a duration of months

Actually, having expandable, highly re-usable tech like this is much better when the capacities are in terms of hours.

This storage, combined with say 2.5x solar panel installation, could essentially provide power at 1x day and night.

[pfdietz]

Yes, and we have that. It's called Li-ion batteries.

[kumarvvr]

They are good for about 1000 cycles.

This system can run for decades.