Four bamboo containers measuring two meters long and one meter high are half-filled with various kinds of trash: vegetable chunks, leaves, paper shreds and leftover food. Yet no offensive odor comes out of the containers located at the Technical College of the State Electricity Company's (STT-PLN) processing facility at Duri Kosambi, West Jakarta.

The bamboo receptacles are part of the waste processing system, which produces electricity on a smal