| |
Calculate Your Water 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 discharges 55 gallons per minute (gpm) to
the sanitary sewer. Company X proposes to replace this piece of equipment
with a similar one that operates on the same schedule, but discharges
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 = 8 hrs x 60 min/hr = 480 min
d = number of days per year equipment runs = 250 days
e = number of gallons per ccf = 748
ccf = hundred cubic feet
Annual ccf decrease |
= (a-b) x (c) x (d) |
|
(e) |
|
|
|
= (55-30) x 480 x 250 |
|
748 |
|
|
|
= 4,011 |
|
|
WET Rebate = $4 per ccf/yr
$4 x 4011 = $16,044 = total project rebate for Company X |
|
|
