Qingdao Xuecheng Trade Co., Ltd
Green Energy, Green Life, Green World
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Off Grid Solar Power System 2kw for Home Use
designed for pakistan client
◆ Raw requirement listing:
(1) Solar panel power: 2000w
(2) Longitude and Latitude – location in Pakistan (check the map)
(3) Input to inverter – 12V∼48V
(4) Output of inverter – 220V∼230V
Input to the load – 220V∼230V (same as output of inverter)
◆ ESH (Equivalent Sunshine Hours):
Surface meteorology and Solar Energy estimation
| Monthly Averaged Insulation Incident On A Horizontal Surface (KWh/m2/day) | |||||||||||||
| Lat 30.22 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 22-year Average | 3.79 | 4.62 | 5.25 | 5.69 | 6.46 | 6.57 | 6.10 | 5.77 | 5.39 | 4.78 | 3.87 | 3.43 | 5.14 |
※ ESH is 3.70 hour as the lowest hours of the average in the winter
Part (A):System design
1. System infrastructure & Block diagram
◆ System infrastructure:
● System voltage: 48VDC (input), 220VAC@50Hz (output);
● Power supplied from solar energy;
◆ System Block diagram:
2. The system can work for 2 continuous rainy days
Part (B):System Part List & Price
| Item | Name | Spec. | Qty | Price |
| 1 | Solar panel(Mono) | 125W/12V | 16 | 11,500RMB |
| 2 | Charge controller | 50A/48V | 1 | 3,680RMB |
| 3 | Deep cycle battery | 150Ah/12V | 8 | 1,104RMB |
| 4 | Pure sine wave Inverter | 3000W@48v | 1 | 5,175RMB |
| Remark: ◆ Packed by the wooden case; ◆ Price tem: EXW ◆ Installation is not included; ◆ Warranty: Whole System 3 years’ warranty; ◆ Payment Term: T/T Advanced Prepaid; ◆ The quotation is only for your information; | ||||