“Zelenski came out and said about a third of the Ukrainian power generation infrastructure has been destroyed, which is not true.”
How much did this source estimate had been destroyed? (more or less)
I saw a report that Japan has recently offered to help rebuild the power infrastructure, but don’t know how much or how quickly.

Electric substations are easy targets for the Iranian drones. They are relatively easy to repair, if parts are available.
It was in the weeds so many KW here verses something else etc.