We could not list all the system configurations here. In fact, you only need to tell us the following information; we could design an optimal system for you：

Where the system will be installed

1. How much is load power of the system?

2. How much is output voltage of the system? Positive current or alternating current?

3. How many hours worked the system everyday?

4. How many days supplied the system continuously in overcast and rainy days?

5. How many systems will be used? Grid-connected or not.

6. Which solar module do you prefer, Crystalline Solar Module or Amorphous Silicon Solar Module.

ELPSP-PV4000 Solar Power System    

Power of PV Panel: 4000Wp
Storage Battery：24*2V 1000Ah
Intelligent Controller: 48V60A
Inverter: 5000VA
Power of Load: ＜4000W
Available Electricity: Approximate 10 KWH in sunshine day, and a little discrepancy for different regions.