Calculating potential savings

Projects will vary from company to company. Our sample calculation for rebates is based on the scenario below:

Company X's existing equipment operates 8 hours per day, 250 days per year, and consumes 55 gallons per minute (gpm). Company X proposes to replace this piece of equipment with a similar one that operates on the same schedule, but consumes only 30 gpm. The estimated project cost is $80,000.

Applying the Formula

A = water usage rate of old equipment = 55 gpm
B = water usage rate of new equipment = 30 gpm
C = average time equipment runs per day = 8hrs x 60 min/hr = 480 min
D = number of days per year equipment runs = 250 days
E = number of gallons per ccf = 748

WET Rebate = $4 per ccf/yr
$4 x 4011 = $16,044 = total project rebate for Company X

Promoting an ethic of water efficiency.