How to increase the power generation of a 3kw solar power generation system?
Jul 25,2022 Rekesun
What are the tips for increasing the power generation of a 3kw solar system?
1. The inclination of the installation of solar modules
The orientation angle of the 3kw solar power system components is usually selected due to the south position, so as to maximize the power generation per unit capacity of the 3kw solar power generation system. As long as it is within ±20° of due south, it will not cause significant harm to the power generation. If the environment allows, it should be 20° to the southwest as far as possible.
2. 3kw solar system module efficiency and quality
Calculation method: Theoretical power generation = annual solar radiation × installed capacity × system efficiency
There are two factors here, battery area and photoelectric conversion efficiency. The conversion efficiency here directly affects the power generation of the power station.
3kw solar system components with loss
If connected in series, the current loss will be caused by the current difference of the components but if connected in parallel, voltage loss will be caused by the voltage difference of the components. The loss will reach more than 8%.
Ensure a better ventilation environment for 3kw solar system components
According to the data, the power of crystalline silicon solar modules decreases by about 0.3% when the temperature rises by 1°C. Therefore, it is necessary to prevent the influence of temperature on power generation and maintain a better ventilation environment.
The loss of dust should not be underestimated
The panel of the crystalline silicon module is tempered glass. During long-term exposure, organic matter and a large amount of dust will accumulate. The dust on the surface blocks the light, which will reduce the output efficiency of the module and directly endanger the power generation.
In addition, it will cause a "hot spot" effect on the component, causing component damage. Rainwater can be cleaned without special maintenance, and if it encounters adhering dirt, simple cleaning is enough.
3. Reduce line loss
In a 3kw solar system, cables occupy a small part, but the harm of wires to power generation cannot be ignored. It is recommended that the line loss of the DC and AC circuits of the system be controlled by 5%.
The cables in the 3kw solar system should be well prepared, the insulation properties of the cables, the high temperature and flame retardant properties of the cables, the moisture-proof and light-proof properties of the cables, the types of cable cores, and the size specifications of the cables.