@ketan Good article. One point not much discussed is the move to embedded solar generation results in lower than normal loads on long distance transmission lines. Due to the "Ferranti effect" this can result in a higher voltage at the load end than the sending end. This contributed to the lack of voltage control and disconnections. Traditional grid design always assumed a certain load on all the lines from source to load but this is no longer the case. Wikipedia: https://en.wikipedia.org/wiki/Ferranti_effect