According to local media in Waterloo, Iowa, USA, an energy company has plans to set up a facility to convert the gases produced at a sewage lagoon into power. According to the reports, Planergy Capital plans to capture gases emitted from a sewage lagoon used by Eagle Ottawa Tannery and the Tyson Foods pork processing plant and turn them into household energy.

It is hoped that the system will go into operation in 2007.