Mr. Buckley Science

Renewable Energy Lab

Compare the voltage of the LED you were able to light with the calculated voltage. The result is the efficiency of the power generation.

Color Voltage Drop at 20 mA
Red 1.8 V
Orange 2.0 V
Yellow 2.3 V
Green 3.5 V
Blue 3.6 V
White 4.0 V

Calculate Wind Power

Compare the calculated Voltage with the Voltage of LED. How Solar Power Works.

Air Density (ρ) kg/m3
Air Velocity (v) m/s
Power Coefficient (Cp)
Radius of Wind Turbine (r) cm

 

Calculate Solar Power

Compare the calculated Voltage with the Voltage of LED. How Wind Power Works.

Sun Intensity W/m2
Area cm2