The fellow pictured above is John Wells. He is experimenting with living disconnected from the energy grid. You can get an overview of what he is trying to do on his website.
You can keep track of his daily progress by following his blog. He posts about once a day. The last few days he has been completing his shower, in which the water is solar heated in a collector he designed and has been building. Fascinating reading. Much more uplifting than the websites some other local blogs are spotlighting