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Southwest Photovoltaic (PV) Systems, Inc.
212 East Main, Tomball, Texas 77375 • Ph: 281.351.0031 • Fax: 281.351.8356

Print this sheet. Complete and fax to SWPV @ 281-351-8356 for system design assistance.

A
B
C
D
E
F
G
H
I
J
K
L
Appliance
Qty
Volt
AC/DC
On?
Run W
Hrs/d
d/wk
WHrs/d
%
Surge W
Ph-L
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
      Ave Total daily Watt-Hrs      

A Type of appliance
B Quantity of appliances
C Voltage at which appliance operate
D Is supply voltage AC or DC?
E Does the appliance spend a lot of time on
F Run Watts - How much power does the appliance use when on. This can be measured or may be displayed on the manufacturers specification sticker on the appliance
G How many hours per day is the appliance used
H How many days per week is the appliance used
I

Average watt-hours per day comsumed by appliance: Calculate: (B x F x G x H) / 7

J Percentage of total power (for information only)
K Starting surge of appliance
L Phantom load; any appliance that consumes power even when it is turned off

 

   
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