No joke folks, at a Prison in Rwanda feces is converted into combustible "biogas," or methane gas. It has reduced by 60 percent the annual wood-fuel costs which would otherwise reach near $1 million. The biogas technology was developed at the Kigali Institute of Science, Technology and Management.

The Rwandan prison biogas facilities recently received an Ashden Award for sustainable energy. The award comes with a $50,000 prize. It is given by the Ashden Trust, a British charity organization that promotes green technologies.

Read the whole article at Wired News:

Wired News: Human Feces Powers Rwandan Prison