So let's get back to the point then. Are you saying that basic infrastructure such as power is fine as long as it works only during the day when it's sunny?
Reality is, it's not. It would certainly prove to be an improvement over status quo in many places in Africa, but it's a far cry from being something that could replace the wired infrastructure that we have in the West today.
And the entire argument in this case is that wireless is somehow about "leapfrogging over" wired network, rather then attempting to dodge the massive cost of having proper infrastructure in place by installing something that possibly, maybe could serve as a bare minimum by Western standards.