The suburbs contain a lot of land and space which is not being put to productive use other than as a living space. I expect as aspects of our modern life decentralise, such as energy, then we will see suburban communities go from sustainable solutions to productive ones.

It will probably not be too dissimilar to how I have adsense on this website. It doesn't make me a living salary, but it does cover the cost of the site. If solar cells could pay the property taxes and so on, then it would be more than useful for most people. (more)
Nanosolar now has their $1 per 1W cells in production. Their first eighteen months of output is already spoken for.

They have made the advances through manufacturing process improvements rather than solar technology itself. Nothing wrong with that. Through microprocessors our cars have become more efficient and safer. Most of the advances in batteries in the last decades have been because of improvements in manufacturing rather than chemical technology. (more)
Cam Riley: South Sea Republic. Freedom, liberty, equity and an Australian Republic.