But they don't shine in that sustained discharge use case. They are most useful for helping manage small fluctuations, and for time shifting energy to the daily peaks.

So I just think utilization is a less useful way to think about battery storage. Unless you're comparing them to gas peakers specifically. (That is, separating out the peakers from base load gas.)

My understanding is that batteries are demonstrating longer useful lifetimes than was anticipated.

Ultimately I think diversity in technologies is the best policy, but difficult to set up the incentives to achieve it.

But you're right about thinking in terms of group productivity and costs and incentives.

I have been focusing a lot more on testing and "manual" validation than on reviewing individual lines of code. (And on setting up rules for what the lines of code should look like that are easily checked with deterministic tools or by llms.)