Very valid points, though the net cost of grid connection varies wildly even in developed countries, and even more so in not developed. A rural electric grid m

Very valid points, though the net cost of grid connection varies wildly even in developed countries, and even more so in not developed. A rural electric grid may well be losing doubled digit percentage of electricity to crappy transformers, and low voltage. And you may get 90%+ efficient delivery if you live in a dense megalopolis.