DC Water Headquarters Building Case Study - Sewage Energy Exchange


Every day, a tremendous amount of warm water is used once before ultimately being discarded down the drain. In fact, the United States Department of Energy estimates that the equivalent of 350 billion kilowatt-hours of hot water, is lost down the drain every year in the U.S. alone. Wastewater provides the ultimate renewable energy source, with an inexhaustible supply of thermal energy. Wastewater heat recovery is a process that can recover the heat energy from all that hot water and use it to heat buildings, cool them, and heat the domestic hot water supply. In 2014 the District of Columbia Water and Sewer Authority (DC Water) needed more office space and decided to build a proper headquarters on top of an existing pumping station, about 170,000 square feet. The building would serve as an example to the masses, targeting LEED Platinum, and employing efficient clean energy technology. One of the opportunities under study related to the fact that in the winter sewer water is about 20 degrees warmer than the outside temperature, and in the summer it’s about 20 degrees cooler. It was almost inevitable that Sharc would receive a call from DC Water, which is now depending on a SHARC system at the new headquarters and is achieving impressive energy and water savings every year.

Presented By

Lynn Mueller
President & CEO
Sharc Energy Systems Inc.

Lynn Mueller is CEO & President of SHARC Energy Systems, in Vancouver, British Columbia. Lynn is an entrepreneur and inventor with a large number of patents to his credit. In the past Lynn was President of Water Furnace Canada, following that he was the President of Earth Source Energy Inc. He was responsible for a large number of advanced sustainable energy systems including the Shangri La Hotel and Mole Hill a city block of 27 restored heritage homes in downtown Vancouver. Lynn’s current passion is SHARC Energy Systems which is working to recover the 100s of billion kilowatt hours of waste energy that goes down the drain every year in the world. Lynn has overseen the growth of the team at SHARC which now has many installations on 3 continents and projects coming in around the world. Lynn has won many industry awards throughout the years and continues to press hard in his quest to make re-use of energy the norm for buildings of the future.