Calculating electricity generation is a crucial part of planning solar power systems. This process helps optimize the design and ensures that the system meets its expected energy production during actual operation to maximize investment benefits. But the question arises: how do we calculate the electricity generation of a solar power system accurately?

The power generation of a solar power system should be estimated based on local solar energy resources and various factors such as the solar mounting structure design, array layout, and environmental conditions.

The annual power generation can be calculated using the formula:

Annual Power Generation = Solar Radiation at Specific Angle × Module Installation Capacity × Comprehensive Efficiency Coefficient

This can be simplified to:

Annual Power Generation = Annual Effective Utilization Hours × Module Installation Capacity

Solar irradiance fluctuates yearly, leading to variations in the annual effective utilization hours. Typically, the comprehensive efficiency coefficient is around 80% to 85%.

Let's take Xiamen as an example. With an installed capacity of 1MW and an optimal inclination angle of 20°, the local annual effective utilization hours are approximately 1,175. Using the formula:

1000kW × 1175hours = 1,175,000kWh

This means that the PV power system will produce approximately 1,175,000 kWh of electricity in the first year, which is significant for energy conservation and emission reduction.

However, power generation is influenced by many factors. To mitigate these influences, careful site selection and inclination design during the initial stages are essential for maintaining stable power generation. Additionally, effective operation and maintenance management are crucial. This ensures that any issues can be quickly addressed to maintain safe operation when emergencies arise.

Not only can it produce electricity and reduce expenses, but it also improves energy efficiency. This approach allows companies to lower their operational costs while contributing to sustainable energy practices.

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