Solar Cell Efficiency Calculator

This tool calculates solar cell efficiency using the solar cell efficiency formula or equation. You can determine the efficiency by inputting the appropriate values. An example is provided below. The solar cell Fill factor formula is also explained.

Solar Cell Efficiency Formula or Equation

Image Alt Text: Solar cell efficiency formula or equation

The solar cell efficiency formula above is used for this calculator. As mentioned, solar cell efficiency is the ratio of electrical output power (in Watts) to the incident energy, which is in the form of sunlight. Incident energy is known as irradiance or radiation flux (in Watt/meter²). The surface area of the solar cell on which light falls is known as the collector area.

Important Note: If the Surface area is in ft², kindly divide the same by 10.76 to obtain the surface area in m². This conversion is necessary before using the solar cell efficiency calculator.

A (m²) = A (ft²) / 10.76

Solar Cell Fill Factor

There is another important parameter used to determine solar cell performance called the Fill Factor. The equation or formula for solar cell fill factor is as follows:

Fill Factor = P_max / (Voc * Ioc)

OR

$Solar cell Fill Factor = (Solar Cell Efficiency * A_c * E) / (Voc * Ioc)**

Where:

• Voc = Open Circuit Voltage
• Ioc = Short Circuit Current

Antenna Efficiency Calculator

• INPUTS:
  • Solar cell Max. output power = 400 Watt
  • Radiation flux or irradiance = 1000 W/m²
  • Surface area or collector area = 2.79 m²
• OUTPUT: 14.33 % Solar Cell Efficiency