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. Includes 4 references, tables, figures.