It is a form of human development that severs dependence on neglected infrastructure, a problem that we can't solve until a change of government. In Morocco they install them on mosques and they provide power to entire communities, not just individual households. There is also a mosque in New Jersey doing the same. There are other useful forms of local alternative power like wind and hydro. I think these are particularly powerful when used to serve the needs of an entire community rather than just an individual household.