Peru is using photovoltaics to provide small amounts of electricity without the infrastructure cost, which makes perfect sense.
That is EXACTLY why I consider this is an AWESOME idea. I have visited some of those locations, and the geography around them is extremely harsh. Many of these families live above 2500m altitude (some even above 3500m - 4000m), get their water from rivers, wells or old aqueducts (some of them made during the Inka's empire), and live mainly from farming and livestock. Giving them electricity from PV so they can use basic things, like led lights and small radios, will improve their quality of life A LOT. Bringing them electricity from the regular grid would be cost-prohibitive.