Key points for seasonal adjustment and maintenance of photovoltaic water pump system

Key points for seasonal adjustment and maintenance of photovoltaic water pump system

The performance of photovoltaic water pump systems is significantly affected by seasonal changes. Adjustment and maintenance based on seasonal characteristics can ensure efficient and stable operation of the system throughout the year and extend the service life of the equipment.

1. Spring: Inspection and Preparation

System comprehensive check:

Check solar panels for damage caused by snow, hail or branches after winter, and clean the panels thoroughly.

Tighten all brackets, cable joints and water pipe clamps that may have become loose due to freezing and thawing.

Check whether the water pump and pipelines are intact, and drain out any accumulated water that may remain in winter.

Performance recovery: As the sunshine increases, the system output will gradually return to normal levels.

2. Summer: efficient operation and prevention of overheating

Core task: Keep the board surface clean: In summer, there is dust and bird droppings, so the frequency of cleaning should be increased (such as once a month) to ensure power generation efficiency. High temperatures will reduce the efficiency of the panels, making it especially important to keep them clean.

Operation optimization: At this time, the system generates maximum power, which is the golden period to complete the main water storage task. Make sure the water tank has sufficient capacity to take full advantage of sunlight.

Pay attention to heat dissipation: Check whether the controller installation location is well ventilated to avoid overheating protection shutdown caused by high temperature exposure.

3. Autumn: Wind protection and in-depth maintenance

Structural reinforcement: As windy weather increases in autumn, all mechanical connections must be comprehensively inspected and tightened, including solar panel brackets, bases, water pump fixtures, etc.

System inspection and data recording: Conduct a comprehensive inspection before winter, including electrical insulation and pipe sealing. Typical daily power generation at this time is recorded as a baseline for winter performance comparisons.

Clean up the surrounding environment: Remove fallen leaves from around solar panels and near reservoirs to prevent clogging and pollution.

4. Winter: Antifreeze and low-light operation

The most important measures: frost protection:

Drain pipes: For surface pumps or non-continuously operating systems, all outdoor pipes and water pumps must be completely drained before the freezing period to prevent freezing and cracking.

Submersible pump: If it is used continuously, make sure it is installed in deep water below the freezing line; if it is stopped, it should be lifted out of the water, drained and stored indoors.

Coping with low light:

In winter, the sunshine is weak and short, and the power generation capacity drops sharply. Pools need to be filled in advance in the fall, and water use must be strictly planned to prioritize critical needs.

The inclination angle of the solar panel can be appropriately adjusted to increase the perpendicularity to the low-angle sunlight in winter (the inclination angle can be increased by 10-15 degrees compared to the local latitude) to capture more energy.

Clear snow: Use soft tools to remove snow from solar panels promptly after snowfall to resume power generation.

5. Maintenance core that is common throughout the year

Electrical safety: Regularly check whether all cables are aged or damaged, and whether the terminal blocks are tight and free of corrosion.

Performance monitoring: Develop a habit and compare the pumping speed or water storage time under similar weather in different seasons to detect efficiency abnormalities early.

Safety first: All cleaning and inspection work must be performed after the system is powered off (solar panels can be covered).

Summary: Act according to the season and put prevention first

The core idea of seasonal adjustment is: preparation for war in spring, maintenance of effectiveness in summer, reinforcement in autumn, and antifreeze in winter. Through predictive maintenance and adjustments, you can not only maximize the advantages of each season (such as strong light in summer), but also effectively avoid its disadvantages (such as freezing and weak light in winter), thus making the photovoltaic water pump system a reliable water source that can be trusted all year round.