[thesteamboat]

I don't think the parent was talking about JIT power generation but rather using JIT (in other industries) as a comparison to to talk about the efficiency-reliability tradeoff. The analogy here is cost savings of avoiding winterization make the power companies more competitive (more efficient) but less reliable.

You are, of course, right in the all specific details you've brought up vis-a-vis the winterizing and the nature of the power grid. I just think you missed the parent's point slightly.