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A 120 litres of clean drinking water a day is the average use per person in the Netherlands. The majority of this is being flushed through the toilet and used for showering. The Water Authorities purify the waste water. For these purification processes a lot of energy is needed. In 2016 the Vallei en Veluwe Water Authority used 86,82 GWh of energy which is equal to the energy consumption of 26.000 households. Within the project we investigated how the Water Authority could produce its own renewable energy in relation to the spatial impact on the landscape.

In this transition, wind and solar energy seem to be evident resources. However, also hydropower and producing energy from the waste water prufication processes are plausible options. In this process energy is produced by digesting waste material from the water purification process. The energy (bio gas) produced is then transported back to the residents. By this a circular energy network evolves in which initial waste forms the base for regenerating sustainable energy resources. In this the water purification plants form the main regional energy hubs and future drawcard for sustainable industrial clusters.

Year: 2017
Type: research
245.000 hectares
Client: College van Rijksadviseurs & Vallei en Veluwe Water Authority
Status: finished and published