What is your understanding based on?
Regarding production batteries might be more expensive, but they can be charged some thousand times without any additional cost
Just from looking at some government studies. This doesn’t necessarily compare longer-term costs, but it does give some direct comparisons between storage options.
I’m certainly no expert here, but just throwing out some rough estimates of battery degradation, it doesn’t seem to be cost-effective vs natural gas, which is already only slightly more expensive than solar. So solar plus battery storage seems to be significantly more expensive than natural gas.
It’s certainly more complex than that (i.e. you’d need less generation if battery backup is plentiful), but that’s the data I’m looking at.
But how can one consider natural gas? The whole point is to avoid getting more greenhouse gases into the atmosphere?!
No, the point is to put less greenhouse gases into the atmosphere. Natural gas is way cleaner than coal, and it’s quite a bit cheaper (from what I can tell) vs battery storage. Everything has a cost tradeoff, and the cost tradeoff for natural gas is very attractive right now. Maybe we’ll develop some really inexpensive energy storage (sodium batteries look promising), but regardless of what we come up with, there will be a transition period where we roll it out, and natural gas is a fantastic alternative until that’s done because supply lines are already in place.