Our kitty litter waste yields highest amount of energy at around 300 gallons per ton of litter, almost equivalent as vegetable oil.

Food waste yields about 280 gallons of natural gas per ton.

Dog waste yields about 240 gallons of natural gas per ton of waste.

Sewage sludge yields only 80 gallons of natural gas.

The graph below shows the amount of bio gas produced by various sources.

bio gas yeild from pet waste