Write down three advantages of harnessing wind energy.

(N/A) $1$. Environment friendly: Wind energy is a clean source of energy that does not produce harmful greenhouse gases or pollutants during operation.
$2$. No recurring expenditure: Once the wind turbine is installed,the source of energy (wind) is free,leading to no recurring fuel costs.
$3$. Renewable source: Wind is a natural,inexhaustible source of energy that will not run out over time.