As [Kachan] points out, companies are trying derive natural gas from renewable sources such as landfill and agricultural waste; utilities could use this energy in their existing infrastructure, avoiding the need for expensive wind turbines or solar power. "If we can, in fact, crack the code of making large volumes of pipeline grade natural gas from renewable sources, that is potentially hugely disruptive to the whole world of energy," Kachan contends.
New Natural-Gas Technologies Could Boost Cleantech, Feb 20, 2013