Tapping in to savingsEach and every one of us bears a responsibility to think and act sustainablywhen it comes to water management in our everyday lives. And now, companies,governments and institutions are giving us the tools to do so. Through smartwater meters and low-flow taps, we are the green plumbers of the future.We can all begreen plumbersMajor trends have a tendency to start atuniversities where ideas have a naturaltesting ground. The major green eventof the year at Stanford University isthe Conservation Cup which challengesstudents to compete with eachother to reduce water and energy consumption.In the 2010 Conservation Cup, reductions of 26%were made by the winners. Now, the rise of smart water metersup the ante through, for instance, a mobile app connected to asocial platform, which allows students to see their class mates’real-time water use 16) .A wireless water way of life in NYCSmart water meters are the latest trend in the Big Apple as well.In 2010, New York City reached half of its goal to install834,000 wireless water meters by January 2012. This is part ofthe citywide conversion to an Automated Meter Reading system,which will allow New York's citizens citizens to track theirwater use and bills online, and help them identify ways to savemoney, conserve water and detect leaks. And the effort is working– although the population has grown, the total water consumptionis lower today than it was 50 years ago 17) . Also in NewYork, <strong>Skanska</strong> managed the city’s major upgrade to its largestwastewater treatment plant, the Newton Creek Water Pollution14 <strong>Skanska</strong> <strong>Green</strong> <strong>Urban</strong> <strong>Development</strong> <strong>Report</strong> <strong>No.3</strong>/November 2011
Control Plant, expanding its capacity from1.2 million to 1.8 million cubic meters perday. The quality of the treatment was alsoimproved by defining eight treatment areasto enhance the removal of biochemicaloxygen demand (BOD) from 60% to 85%.The improvements brought New York intocompliance with the Federal Clean WaterAct 18) . So in 2012, New Yorkers are all setwith clean water and ways to manage it individually.The green plumber's toolboxAnother important element to a greenerhome is domestic tools, and high-performing,water-efficient fixtures have yet to hitthe mainstream. For instance, toilets useabout 30% of the total water used in a UKhousehold. An average household flushes5000 times per year. There are around 45million toilets in UK homes, using an estimated2 billion liters* of fresh water everyday. Approximately five million of thesetoilets are of the latest low-flush models,which use only half the amount of watercompared to old style toilets. Should all oldstyle toilets be changed the savings wouldamount to app. 1 billion liters annually. 19) ●The above values are estimates based on survey resultsgathered from a number of countries.Tapping in to savings InterviewHe’s written thirteen books on sustainable development.He’s the co-founder of the <strong>Green</strong>build Showof the US <strong>Green</strong> Building Council – the largest annualshow in North America, if not the world, on greenbuilding. He sees water as the next Big Issue for ourplanet. Jerry Yudelson’s main message: Blue is thenew green.Blue is the newgreen“Live as you learn” seems to beJerry Yudelson’s modus operandi,and he has decided to be his ownbest case when it comes to implementinggreen practices in thehome environment.“I’ve taken a 10-year old homeand put 3 kilowatts of solar powercells on the roof. I have a solar waterheater and I collect rainwater for usein my garden. I have low-flush toilets,energy-efficient appliances and evena greywater collection system for thelaundry water to put in the garden.”Surprisingly, the first neighborwho followed the trend was the leastlikely person Jerry could have imagined– a “very conservative guy inhis early 60s”, who installed USD50,000 worth of green equipment.“As soon as you get your first billand you see that the utility companyowes you money instead of the reverse,you get very satisfied.”The green business has becomebig business in the US and theworld, and consumers as well ascompanies are seeing the financialand environment benefits. InYudelson’s latest book, “Dry Run:Preventing the Next <strong>Urban</strong> WaterCrises,” one of the first books thatdeals with the design issues that canreduce water use in the cities, hegives advice of what metropolitanscan do to live more sustainably.“What you can control most as an urbanresident is demand on a city level.We all need to become more awarethat water is not a free resource. Inyour everyday life, you have to reallylook at the efficiency of water usewhen you buy things, such as clotheswashers, dishwashers and toilets. It’sall about the small changes.I, for example, have a four-minutetimer in my shower. So I take a fourminuteor less shower – and thatincludes singing!” ●“In your everyday life,you have to really lookat the efficiency ofwater use when youbuy things.”Jerry Yudelson,<strong>Green</strong> Building SpeakerCo-founder, <strong>Green</strong>build ShowUSGBC, USA<strong>Skanska</strong> <strong>Green</strong> <strong>Urban</strong> <strong>Development</strong> <strong>Report</strong> <strong>No.3</strong>/November 2011 15