The underground pipe system is directly connected to three waste drop-off points for organic waste, recyclables, and other waste. A strong vacuum pressure pulls the waste into a local substation where organic waste is transformed into bio-gas, recyclables are processed, and other waste is incinerated to produce electricity or heat. The waste can travel up to 8-9 kilometers at speeds of up to 50 km/hour, and it takes only 10 seconds to empty a waste point. The entire system is automated, and the unmanned substations are cleaned at regular intervals.
Each set of waste drop-off points serves 30-50 families, and the drop-off points are designed to be visible from most of the apartments in the development, discouraging misuse. Initially, there were some issues with the purity of the bio-gas due to residents depositing incorrect types of waste, but an education program has improved the gas purity to 95 percent.
Envac performed the complete installation from initial design to operation and maintenance, and the system has been in operation since 2013. Although the upfront costs were high due to construction labor and materials, the running costs are significantly lower compared to a conventional waste collection system.