# Wind Energy

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Wind energy, abbreviated as E, is the kinetic energy of air in motion.

## Wind Energy Formula

$$\large{ E = \frac{ 1 }{ 2 } \; A \; t \; \rho \; v^3 }$$
Symbol English Metric
$$\large{ E }$$ = wind energy $$\large{ lbf-ft }$$ $$\large{ J }$$
$$\large{ \rho }$$  (Greek symbol rho) = density of air $$\large{ \frac{lbm}{ft^3} }$$ $$\large{ \frac{kg}{m^3} }$$
$$\large{ A }$$ = rotary area $$\large{ ft^2 }$$ $$\large{ m^2 }$$
$$\large{ t }$$ = time $$sec$$ $$s$$
$$\large{ v }$$ = wind speed $$\large{ \frac{ft}{sec} }$$ $$\large{ \frac{m}{s} }$$

Tags: Energy Equations