# Solar Cell Efficiency | Summary and Q&A

8.7K views
August 29, 2023
by
The Organic Chemistry Tutor
Solar Cell Efficiency

## TL;DR

Learn how to calculate the efficiency of a solar cell using the inputs of cell dimensions, solar intensity, and output power.

## Key Insights

• ✊ Solar cell efficiency is calculated by dividing the output power by the input power, multiplied by 100%.
• 🤒 The input power is determined by multiplying the solar intensity by the area of the solar cell (converted to square meters).
• 🤒 Dimensions of the solar cell may need to be converted from feet or inches to square meters.

## Transcript

how do you calculate the efficiency of a solar cell how do you do that we're going to talk about how to do that in this video through this problem so we have a 175 watt solar cell and we're given the dimensions of the solar cell it has a length of 5T and a width of 2T what is the efficiency of this solar cell and we're given the tensity of the sunl... Read More

### Q: How do you calculate the efficiency of a solar cell?

Solar cell efficiency can be calculated by dividing the output power of the solar cell by the input power from the sun, multiplied by 100%.

### Q: What factors are needed to calculate the efficiency of a solar cell?

The factors needed are the output power of the solar cell, the dimensions of the solar cell (converted to square meters), and the solar intensity of the region.

### Q: How do you convert solar cell dimensions from feet to square meters?

To convert dimensions from feet to square meters, multiply the area in square feet by 0.0929.

### Q: Can solar intensity vary in different regions?

Yes, solar intensity can vary based on factors such as proximity to the equator and the presence of clouds in the sky.

## Summary & Key Takeaways

• Solar cell efficiency can be calculated by dividing the output power of the solar cell by the input power from the sun, multiplied by 100%.

• To calculate the input power, multiply the solar intensity by the area of the solar cell (converted to square meters).

• Convert the solar cell dimensions from feet or inches to square meters before calculating the input power.