And still, the EPA would never allow the burning of the poo without proper permits and treatment of the combustion gasses and the residual ash.
Is it a neat idea in some third world country with limited sewage and power generation capabilities? Yes. Would it ever be allowed to function in the United States with our EPA laws? No.
Didn’t see mention of natural gas as a fuel. That would make sense.
The article seemed to imply the whole thing is fueled by the heat value of the poo.
The internet is a very weird place. Here’s an article on the heat value of sewage sludge. Apparently it is somewhat higher per unit of weight than most types of coal.
https://web.anl.gov/PCS/acsfuel/preprint%20archive/Files/36_4_NEW%20YORK_08-91_1653.pdf
However, that is for dewatered sludge. Getting the water out requires energy, and I suspect it requires more energy than is gained when the dewatered sludge is burned.
There ain’t no such thing as a free energy lunch.