Vernier Software and Technology
Vernier Software & Technology

Blade Variable: Area

Figure from experiment 7 from Wind Energy Explorations


The blades on a wind turbine catch the wind and spin around, making the generator generate electricity. Does this mean that bigger blades will generate more power?

In this experiment, you will explore how blade area is related to the power output of your wind turbine. To do that, you need to be able to calculate the area of the blades you are using. The area of a rectangular blade is equal to the length times the width of the blade.


  • Measure wind turbine power output with an Energy Sensor.
  • Investigate how blade area affects the power output of a wind turbine.
  • Determine the optimal blade area for maximum power output.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Additional Requirements

Graphical Analysis 4

Wind Energy Explorations

See other experiments from the lab book.

1Energy Transformation
2Measuring Wind Energy
3Exploring Wind Turbines
4Wind Turbines: Effect of Load
5Blade Variable: Pitch
6Blade Variable: Quantity
7Blade Variable: Area
8Blade Variable: Shape
9Engineering Project: Max Power

Experiment 7 from Wind Energy Explorations Lab Book

<i>Wind Energy Explorations</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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