Installation Guide

Page 9 of 12
Solar Panels Weekly Power Chart
Solar panel Rated Hourly
(Maximum output)
Laptop 20-50 watts
Weekly Output
PC 80-150 watts
40" Television/ Projector
200 watts
Fan 80 watts
Fluorescent Light
40 watts
90W
100W 110W
22 hr
110 hr 122 hr 134 hr
88 hr 98 hr 107 hr
55 hr 61 hr 67 hr
29 hr 32 hr 36 hr
24 hr 28 hr
4.4KW∙h 4.9KW∙h 5.39KW∙h
Coffee Maker 1000 Watts
4.4 hr 4.9 hr 5 hr
165W
200W
202 hr
244 hr
161 hr
196 hr
101 hr
122 hr
54 hr
64 hr
40 hr
48 hr
8.08KW∙h
9.8 KW∙h
8 hr
9.8 hr
180W
220 hr
176 hr
110 hr
58 hr
44 hr
8.82 KW∙h
8 hr
Please noted all run times/ratings are estimates only and may vary
depending on your location, time of day, time of year and are based on 7 Hours of full sunlight per day.
Weekly Power Run Time
Trouble Shooting
Battery are not charging.
Check your controller and battery first of all，make sure it’s a workable 12V battery
(or 24V while with the charge controller model NPCC11 / NPCC13 / NPCC20). battery voltage
should not lower than 11V(12V battery) / 22V(24V battery).
Faulty connections
The wires should always be water tight and insulated. Poor wiring may cause loose connections,
corrosion and oxidation of the wires. Voltage levels at various parts of your connection can be
checked by a multimeter to help you find out the points at which low voltage problems start. Do not
connect the solar power to the controller during the solar power voltage check.
Solar panel faults
This condition is not common as most of the solar panels are able to sustain harsh weather
conditions and last for a long period of time. Checking on your solar panels is also advised as
the last resort. The main defects a solar panel may experience are: Delamination, junction
box faults ( increased resistance in the junction boxes due to exposure to moisture).
Low power output from Solar panel / Battery charging slow.
Shading
Shading should always be avoided at all times. Shading causes massive loss of power output
and solar panels need high exposure to sun light so as to produce high power outputs. One
should always make sure that there are no tree branches blocking the solar panels from direct
sunlight. Dust and debris also causes shading. Solar panels should always be cleaned to
prevent dust and debris particles from causing shading on the solar panels.