content: False. When it hits under 1$/watt at residential prices there will be an overnight tsunami of installation everywhere. I work in oil and gas, but part of what I get paid to do is crunch numbers.  Solar electric generation is not too far off from viable, and even the incremental improvements in battery tech are starting to approach worthwhile.  I personally predict a 20 year horizon if we don't have a massive world war in the meantime.