The city of San Antonio in USA has found out that their residents could produce 140,000 tonnes of dung / shit / human waste/ biosolids a year.

From that 140,000 tonnes a year, it could generate 1.5 million cubic feet of methane gas per day. It doesn't stop there, this gas could be used to fuel furnaces, power plants and other combustion-based generators. My ... my .. what a discovery.
So, the city appointed Ameresco Inc to design, engineer, permit, construct, own, operate, manage and maintain the gas conditioning and distribution facility and the pipelines necessary to transfer and sell the gas to commercial natural gas pipelines. This is what I call innovation and creativity. Create something out of nothing that would have been flushed away down the sewerage system way out to the sea ............................. oops!
Now I have to start collecting my stuff ............ daily. Want to contribute? Joint-venture at the very least? It's a good venture as the price could be as high as US$9.00 per cubic feet.
After collecting it, need to find a safe place to keep it as smelling too much of your dung / shit / human waste/ biosolids could actually kill you besides making you rich - reading: Two kids among five killed by methane gas - MSNBC.
Reading: Ameresco Executes Historic Renewable Energy Contract
Tags: Dung, Shit, Human Waste, Biosolids, San Antonio, USA, Ameresco Inc, Methane Gas, Renewable Energy, Environment, Natural Gas, Biogas, Cubic Feet