All energy companies are looking into alternative energy sources. Washington, D.C. found one that keeps on coming…human waste.
Popular Science reports that the capitol’s water company, D.C. Water, introduced a brand new bioenergy facility that turns D.C. residents’ wastewater into clean energy.
The Wastewater, travels to the plant, where the liquid is separated out and sent to a traditional wastewater treatment plant. The solids that are left over are heated, sterilized, and mixed into an easily digestible mass. That mixture is then sent into a digester, where a certain mix of microbes chows down on the waste, producing methane as they digest their meal. That methane is then burned and used to generate about 10 megawatts of electricity.
The energy is used to power the pipes and pumps of D.C. Water, saving them an estimated $10 million a year in energy bills.
I guess you can call that an renewable waste.