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Sydney: Community struggle against waste
For 14 years, no water or sewerage has left the site. The house generates all its electricity 鈥 it ... even generates income by returning excess power to the grid system. 鈥淚n nature, 80% of water stays ... where it falls鈥, Mobbs said. 鈥淲e have to emulate nature, so that our buildings keep 80% of the water ...