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A simple spreadsheet model that screens sites for potential water conservation opportunities and illustrates the energy savings
that result from water conservation activities. The user inputs site-specific data including utility bill information, water usage,
water, sewer, treatment, and energy costs, and numbers and kinds of water-using fixtures. The program then gives the user
various conservation opportunities, the direct and indirect water and energy savings from these options, costs, and the payback
period.
Keywords
water conservation opportunities, energy savings
Validation/Testing
N/A
Expertise Required
Basic knowledge of Excel or Lotus required.
Users
50 contractors under the SAVEnergy Audit Program administered by the Federal Energy Management Program.
Audience
Building energy and water auditors; facility managers.
Input
Energy, water use, associated cost data, and fixture data are entered as specified.
Output
Water conservation opportunities, costs, and direct and indirect savings are output in pre-formatted reports.
Computer Platform
Runs on Excel or Lotus spreadsheet, Mac or PC.
Programming Language
NA
Strengths
Very effective in screening for water conservation opportunities and showing the relationship between water and
energy savings resulting from water conservation projects.
Weaknesses
Conservation from once-through cooling, cooling towers, and leak detection are not quantified in this model
because of the wide variation in cost, effectiveness, and site specific information needed to estimate conservation opportunities.
Contact
Availability
Available free through a web download.
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