ITT Goulds Residential & Commercial Group

In this paper the authors examine opportunities for energy savings at water treatment facilities in North America and how energy savings can be achieved. The authors discuss specific approaches, such as using variable speed drives and high efficiency motors as primary sources to realize increased payback of original equipment cost. In addition, this paper explores life cycle costing as a method to justify investment in equipment upgrades, moving beyond just simple payback periods. The authors use existing treatment facilities for reference throughout the paper. I. Overview Industrial pumping systems account for about 25 % of all industrial electricity consumption, and for over 50 % of the electricity in certain pumping-intensive industries, including municipal water and wastewater. Based on a U.S. Department of Energy study1, economically viable energy optimization of pumping systems can reduce a typical facility’s pumping system energy costs by over 20%. Pursuing these opportunities can have a significant impact on facility operating costs. Just as importantly, these pumpin