Green energy- Biogas

I was just going through this video, and for a system estimated at 100k for installation naona si baya. Anyone familiar with the system, is it sustainable in the long run? What are the cons?

How safe is that big plastic gas storage bag ? Jirani roho chafu aki seti moto si italipuka hio kijiji yote ?


Attach that bag to @FieldMarshal CouchP 's buttocks for bumper production. Your energy needs will be sorted provided you feed him mturaa and njahi thrice a day.