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Question

Choose the correct sequence of steps needed when calculating the inclination angle for a solar power plant installation.

This question was previously asked in
RRB NTPC 2025 Graduate Level CBT 1 Question Paper (25-Mar-2026) (Shift 3)
The correct answer is

Determine latitude, assess shading, account for seasonal changes, set panel angle

To calculate the inclination angle for a solar power plant installation, it is important to follow a specific sequence of steps to ensure maximum efficiency. Here is a detailed explanation of the correct sequence:

  1. Determine Latitude: The first step is to determine the latitude of the location where the solar panels will be installed. Latitude affects the sun's angle and path, which in turn affects the optimal tilt angle for solar panels.
  2. Assess Shading: Once the latitude is determined, the next step is to assess any potential shading that could affect the solar panels. Nearby buildings, trees, or other obstacles should be considered, as shading can significantly reduce energy output.
  3. Account for Seasonal Changes: After assessing shading, it is crucial to account for seasonal changes. Solar angles change with the seasons, so adjusting the panel's tilt angle to accommodate these changes can optimize energy capture throughout the year.
  4. Set Panel Angle: Finally, set the panel angle based on the information gathered in the previous steps. The panel angle should be set to optimize exposure to direct sunlight, taking into account latitude, shading, and seasonal variations. The formula for the optimal tilt angle is often given by adjusting the latitude angle to optimize for winter or summer seasons.

In conclusion, the correct sequence for calculating the inclination angle for a solar power plant is: Determine latitude, assess shading, account for seasonal changes, set panel angle. This sequence ensures that the solar panels are positioned to maximize sunlight exposure throughout the year, improving the efficiency and effectiveness of the solar power system.

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