As an ambassador between people, animals and nature, and being a conservation centre, Zoo Zurich works constantly to preserve its own resources and to optimise the zoo's sustainability.
Zoo Zurich uses 100 percent green electricity with the ‹naturemade star› label from EWZ. It has its own photovoltaic facilities and solar panels to supply additional energy. Biogas is produced from green waste and manure, while energy saving lamps, motion detections and cut-in units all result in lower electricity consumption.
98 percent of the zoo's heating is produced sustainably, for example using wood chips from the forest (approximately 72 percent of the total heating requirements) and by means of a heat pump (Masoala Rainforest). The heat output, and above all the amount of heating oil needed, is reduced even further by the use of heat recovery systems, the renovation of the power station and the implementation of optimal heating insulation when converting or constructing new buildings.
In order to keep water consumption as low as possible, rainwater and grey water are used for replenishing the pools in various parts of the zoo, for filling the sprinkler systems and for flushing the toilets in the sanitary facilities. The Masoala Rainforest and the Kaeng Krachan Elephant Park are supplied with purified rainwater. The expanses of water clean themselves, partly thanks to pool pond cleaning systems in the actual enclosures.
Zoo Zurich consistently sorts and recycles waste. Metal, wood, paper, cardboard, building rubble, vegetation, batteries and PET are collected in the depot before being sorted and professionally disposed of. Green waste is incorporated into the biogas production process. Plant waste and wood chips from the zoo’s forest are prepared for the animals, and composted and recycled after use; the same applies to old wood.
Zoo Zurich advises visitors to travel to the zoo by public transport. Thanks to partnerships with SBB and ZVV, attractive prices can be offered. It also pursues the objective of organising public transport from Stettbach via cable car.
Construction projects at Zoo Zurich comply with the ecological guidelines of the canton of Zurich. The zoo takes into account the key figures of the Conference of Cantonal Energy Directors for the conversion and construction of new buildings. Heavy transport equipment from external companies must be fitted with soot particle filters, and reusable construction materials are professionally sorted. Zoo Zurich uses solvent-free paint, lacquer and glue, and avoids CFCs and other toxic substances.