Hello, Welcome to HEC SOLAR!
Independent system photovoltaic power plant
Independent system: Under the illumination of sunlight, the electrical energy generated by the solar cell components is charged to the battery through the controller or directly supplied to the load when meeting the load demand. If the sunlight is insufficient or at night, the battery is controlled by the controller to supply power to the load.
The composition of the off grid system includes battery components, controllers, batteries, off grid inverters, loads, etc.
Installation methods: flat roof installation, color steel tile installation, tile inclined roof installation, and ground power station installation.
Main customer groups: islands, deserts, and nature reserves far from the power grid.
Let's take a 1kW independent system as an example to introduce the load information below
Table 1. User Load Information Table
|
Load power consumption（kWh） |
See the table below |
Working voltage |
DC side voltage(V) |
48 |
|
AC side voltage(V) |
220 |
|||
|
Working hours(h) |
See the table below |
Days of standby power(d) |
2.5 |
|
|
Place of use |
Beijing |
Standard average sunshine(h) |
4.32 |
|
Table 2. Load itemized statistical table
|
Electrical appliances |
Rated power(W) |
Quantity |
Electricity consumption hours(h) |
Electricity consumption(kWh) |
|
Energy saving light |
20 |
3 |
6 |
0.36 |
|
Energy saving light |
20 |
4 |
3 |
0.24 |
|
Energy saving light |
11 |
1 |
1 |
0.011 |
|
Television |
65 |
1 |
4 |
0.26 |
|
Signal receiver |
30 |
1 |
4 |
0.12 |
|
Total |
0.991 |
|||
Copyright © Zhongtian Tongyuan Solar Energy Hi-Tech Co., Ltd.
Address: Xicheng Wansheng Business Hall, 120 Xiaoguan Street, Huayuan Road, Haidian District, Beijing