
System Sizing 

All EPL Home Power Systems come complete with Solar Module, Charge Controller, Batteries and DCAC Inverter. Support frames for ground/ roof mounting and battery racking are available as options.
Choosing a Solar Home Power System Kit
To help you select the right system, you can follow the simple steps below. If you have any questions, please do not hesitate to contact your dealer or EPL. We will be pleased to help. 



Step 1:
List down what type of electrical appliances you would like to power with your solar system (e.g. light) in Column A. Write down the total number of units (e.g. 3 lamps) in Column B. Write down the rated power of the appliance
(e.g. lamp = 11W; radio = 5W) in Column C. If you are unsure of the power rating, check your manual.
Step 2:
Write down the estimated daily running time for each appliance, in this case the lighting (e.g. 3 hrs) in Column D. If you are using a fridge or a freezer, simply write down its daily energy consumption in Column E, e.g. 200Wh.
Step 3:
For each appliance, multiply Columns B, C and D for each line and input the result in Column E (Daily discharge), e.g. the daily energy consumption for
3 light bulbs of 11W each is 3 units x 11W x 3hrs = 66Wh.
Step 4:
Finally, add up the results of Columns E. The total at the end represents your total energy needs for the appliances selected (e.g. 66Wh + 10Wh + 200Wh + 300Wh = 576Wh). 


In this case, choose EPL300W with daily output of 998Wh 



Sample calculation to determine the right system: 



Appliances 
No. of Unit
(s) 
× 
Power Rating
(W) 
× 
Running Timeper day
(hr) 
= 
Daily discharge
(Wh) 
Light 
3 
× 
11 
× 
3 
= 
66 
Radio 
1 
× 
5 
× 
2 
= 
10 
Television 
 
× 
 
× 
 
= 
 
Refrigerator 
1 
× 
 
× 
24 
= 
200 
Water Pump 
1 
× 
100 
× 
3 
= 
300 
Fan 
 
× 
 

 
= 
 
Total Daily Discharge (Wh) 

576 




Systems That Meet Your Needs 

To meet your different energy needs, we have designed a wide range of Solar Home Power Systems  from small systems for producing enough power to illuminate domestic work after sundown to largersized systems for higher energy demand. 



System 
EPL80W 
EPL150W 
EPL300W 
EPL600W 
EPL900W 
EPL1500W 
Panel 
80W x 1 
150W x 1 
150W x 2 
150W x 4 
150W x 6 
150W x 10 
Configuration 
C1210A 
C1210A 
C4530A 
xStecca 35A 
Stecca 35A 
Stecca 35A 
Controller 
Modified 
Modified 
Modified 
Modified 
Pure 
Pure 
Inverter 
Sinewave 
Sinewave 
Sinewave 
Sinewave 
Sinewave 
Sinewave 
Battery size 
500W 
750VA 
2000VA 
2000VA 
2400VA 
2400VA 
Total daily
energy (1) 
12V/100Ah 
12V/100Ah 
4 units x 12V/150Ah 
4 units x 12V/200Ah 
8 units x 12V/200Ah 
8 units x 12V/200Ah 
Lamp (11W) 
252Wh 
470Wh 
998Wh 
2020Wh 
3105Wh 
5100Wh 
Radio (5W) 
x 4.5hrs 
x 5hrs 
x 5hrs 
x 5hrs 
x 7hrs 
x 8hrs 
Television (40W) 
x 3.5hrs 
x 5hrs 
x 5hrs 
x 5hrs 
x 6hrs 
x 6hrs 
Fridge
(200Wh) 






Computer (50W) 
x 2hrs 
x 2hrs 
x 4hrs 
x 7hrs 
x 8hrs 
x 10hrs 




Energy yield in Watthours (Wh) on a sunny day.
Reference locations: Thailand, The Philippines, Mombasa (5.2 kWh/m2/day) 

