I thought I would share a little about this guy Jean Pain who completely and most effectively hacked the DIY energy thing some time back! Obviously, the world has NOT been paying attention (as old timers know well).
In a nut shell, Pain was a forester in France who noticed the mighty thermal output of microbial action on composting materials. He proceeded to harness this heat by rigging large mounds of shredded brush (from his management of the forests) with an internal methane producing biomass bioreactor and heat capture coils built into the mound structure.
Click through to the page to learn more!