Smart water cluster
At the Montreal WWC in 2010 some IWA Specialist Groups joint forces in the Smart Water Cluster. The SWC is addressing integrated water issues to create a smart water usage. What smart water use is, is difficult to define. It is more than integrated water management. According to Paul Reiter “it is a word for a group of people from SG‘s working together…”. Today several Smart Water Concepts were presented.
The first case was presented by Aik Num Puah (Singapore). He presented the world famous four tap strategy, but he put it in de context of the public engagement and how to tell the people how and why they are working in a total system approach. Water is not only about closing the water loop, but also how people see the water in their surroundings. He showed an example on how to restore a river bed.
Avner Adin (Israel) explained the situation in Israel. Isreal has a large water shortage. Water is transported from the north, lake Gallilee, but also from seawater desalination and water reuse. Innovation is important and collaboration of University and the water industry is a ‘born winner’.
The third speaker was Paul Reiter explaining about the situation in Seatle. Seattle uses a portfolio approach. The city has three water sources (Cedar River, Tolt River and groundwater) and uses ‘Conservation’ as fourth ‘source’. Conservation included stopping lawn watering in summer. This was quite a change in the US Westcoast. More individual meters were installed and water rates were differentiated in seasonal tiers, with high water prices in summer time, resulting in a drastic water and energy conservation. An extra cool thing was that they were broker for conservation in the surrounding municipalities. This restored several creeks because several groundwater sources could be closed. The important lesson is that utilities should not rely on one source.