The problem in the image asks to calculate the annual electricity generation of a solar power system (PV system) installed on an area of 30 m × 40 m, given the following information:

• The total average solar radiation in the region is 1,200 kWh/m²/year.
• The energy production efficiency of the PV system is 21%.
• We are asked to calculate the electricity generated by the system annually in kWh.

Step-by-Step Calculation:

1. Calculate the total area of the PV system: $\text{Area} = 30 \, \text{m} \times 40 \, \text{m} = 1200 \, \text{m}^2$

2. Determine the total solar energy received by this area per year: $\text{Total solar energy} = \text{Area} \times \text{Solar radiation per m}^2$ $= 1200 \, \text{m}^2 \times 1200 \, \frac{\text{kWh}}{\text{m}^2 \cdot \text{year}} = 1,440,000 \, \text{kWh/year}$

3. Apply the system efficiency to calculate the actual electricity generated: $\text{Electricity generated} = \text{Total solar energy} \times \text{Efficiency}$ $= 1,440,000 \, \text{kWh/year} \times 0.21 = 302,400 \, \text{kWh/year}$

Final Answer:

The solar PV system will generate 302,400 kWh per year.

Do you have any questions or would you like a more detailed explanation?

Here are 5 related questions:

1. How is solar radiation typically measured in different regions?
2. How does the efficiency of a PV system affect energy production over time?
3. What factors could influence the real-world efficiency of a solar panel system?
4. How would a change in the size of the PV system affect the annual electricity generation?
5. What are the benefits of using solar energy compared to other renewable energy sources?

Tip: Solar panel efficiency can decrease over time due to factors like dirt accumulation, degradation, and temperature changes. Regular maintenance can help sustain performance.