Saving energy at Iona Island Wastewater Treatment PlantSaving energy at Iona Island Wastewater Treatment Plant<div class="ExternalClass16603568E58B4EDBA63C52BF4FD20C43"><p>The new Iona Island Secondary Wastewater Treatment Plant, which will be operating by 2030, will be designed for energy efficiency.  In the meantime, staff continue to find ways to reduce energy consumption in the existing plant. </p><p>Six 1,200-horsepower pumps push the treated wastewater through two pipes that extend from the plant more than seven kilometres offshore and along the sea floor into the Strait of Georgia.  These pumps are the biggest electricity users in the plant, equivalent to the annual electricity used by 690 average B.C. households.</p><p>In 2016, staff made changes to how the six pumps are operated.  Now, fewer pumps operate at higher speeds, which uses less electricity.  The changes are expected to reduce annual electricity consumption by 1.25 million kWh per year (equivalent to 120 average B.C. households).  By the time the new plant is operating, these changes will have saved nearly $2 million.  The project also identified additional pump-related energy savings opportunities that will be pursued in the near future.</p></div>http://www.metrovancouver.org/metroupdate/PublishingImages/Issue33-Iona.jpg2017-06-29T07:00:00ZGP0|#4559f831-3b17-4c2c-8f55-ad81859dc712;L0|#04559f831-3b17-4c2c-8f55-ad81859dc712|Issue 33;GTSet|#d14ffe11-45dc-48fb-8684-ff109cf15a74<div class="ExternalClass448A20F02A0443EFAE4C575F15584D45"><p>​The new Iona Island Secondary Wastewater Treatment Plant, which will be operating by 2030, will be designed for energy efficiency. In the meantime, staff continue to find ways to reduce energy consumption in the existing plant.</p></div>0