1. Regular cleaning of photovoltaic power plants
The panels of crystalline silicon photovoltaic modules are tempered glass, which will accumulate a lot of dust and debris when exposed to the air for a long time. At the same time, dust, etc. may also cause component "hot spot" effect, resulting in component damage. Generally speaking, the accumulation of dust on the surface of components will cause a loss of 10% or more of power generation. A lot of operation and maintenance data and timely cleaning of components can effectively increase the power generation revenue by about 3-5%.
With the arrival of autumn and winter, the weather is dry and the wind is mostly dusty. Everyone must clean the photovoltaic power station in time.
2. Ensure that the inverter is well ventilated
On the premise of ensuring the qualified performance of the inverter, try to install the inverter in a cool place and keep the surrounding ventilation to facilitate the inverter to dissipate heat. Especially in summer and autumn, normal heat dissipation can maintain the power generation efficiency of the inverter, thereby ensuring the stable power generation of the photovoltaic power station.
3. Ensure that the cable performance is good
In photovoltaic systems, cables account for a small part, but the influence of cables on power generation cannot be ignored. When installing a photovoltaic power station, be sure to purchase a photovoltaic special cable. The insulation performance of the cable, the heat-resistance and flame-retardant performance of the cable, the moisture-proof and light-proof performance of the cable, the type of the cable core, and the size and specification of the cable must be qualified.
In daily operation and maintenance, we should regularly check whether the line is damaged, whether there is leakage of electricity, etc., especially after every severe weather such as typhoon and hail, it is essential to check whether the line and connectors are loose.
4. Replace damaged photovoltaic modules in time
The power generation of a photovoltaic power station is calculated according to the power generation of each photovoltaic panel. Once the photovoltaic power station has problems such as component damage, it will definitely affect the power generation and thus the income. Therefore, the owner must regularly check the quality of photovoltaic modules. And replace damaged components in time to ensure the good operation of the power station.
In addition to the above 4 points, we should also pay attention to whether the installation inclination of photovoltaic modules is qualified. Once there are problems such as changes in the installation angle, we should contact the installer for after-sales service in time.