> unplanned power cuts

Actually load shedding is planned power cuts. I have seen a schedule published in a newspaper with different regions of the city (not Delhi) and times when no electricity will be available. This is for ppl to plan their day

I suspect the semantics are about how long in advance it's planned. A day or two? Planned. An hour? Hard sell.

Load shedding = it was done on purpose, not that it was pre-planned. If a sudden problem occurs, some areas can be cut to prevent wider failure. I would expect this to be largely automatic.