Based in Beit Yanai, Isreal, Home Biogas is an innovative technology that transforms organic waste into fuel for cooking, right in your backyard. The technology creates a clean-burning gas from organic food waste and pet waste, and the liquid by-product can be used as plant fertilizer.
The current cost for one unit is set at $995, however the United Nations Development Program has expressed interest in providing Biogas units to small villages. As it runs without electricity and produces the equivalent of 6 kilo-watt hours of energy every day, the UNDP believes it could be useful for those who live in remote areas. It can also provide electricity and heat instead of gas.
You can read more about Biogas here.