Some Japanese farmers have begun looking to biogas technology to allow them to turn their properties into power plants, giving them a way to transform animal and other waste into profits.

Biogas is a combustible substance consisting mainly of methane that can be produced through fermentation of organic materials such as livestock waste or food waste.

The push toward this type of green energy production has been promoted through the government's feed-in-tariff, or FIT, system introduced in 2012 to encourage the use of renewables following the March 2011 Fukushima nuclear meltdowns.