The methane from the garbage produced by Sydney and recovered by a bioreactor generates green energy for 2,500 households in the region, and heats the ponds on a Barramundi is a freshwater fish species found in tropical and semitropical regions ranging from the Persian Gulf to China, and found as far south as Australia, as well as north to India. In Australia, it is both wild-caught and farmed for export to the global market as a table fish, and some recreational fishermen enjoy its pursuit as well.