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Heat recovery from wastewater: An Interview with Lynn Mueller of International Wastewater

http://www.renewableenergymagazine.com/article/heat-recovery-from-wastewater-an-interview-with-20160526



According to the US Department of Energy, 400 billion kilowatts of hot water goes down the drain annually in the US, roughly $40 billion worth of energy at an average cost of ten cents per kilowatt. Wastewater heat recovery is a process that can recover the heat energy from all that hot water and use it to heat buildings, and also to cool them. Such systems are currently being commercialised throughout the USA, Canada and the UK and one company that is actively engaged in installing them is International Wastewater Systems.  In a recent installation, in a 172-unit condominium complex, an installation now provides hot water for all the units with an efficiency of about 550 percent – saving the residents about 70 percent on their hot water heating bills. In addition, there is an estimated emissions reduction of 100 tonnes per year.

REM talked to the company’s founder and CEO, Lynn Mueller, to find out more about the technology, its future potential and how the company is taking advantage of the sizeable opportunities available.

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