is this sentence correct?

[dayao]

Wind turbines form a good source of renewable energy because they produce less emission, cost-effective and versatile.

thanks,
dayao

[bhaisahab]

Wind turbines form a good source of renewable energy because they produce less emission, cost-effective and versatile.

thanks,
dayao

Welcome to the forums. I suggest, "Wind turbines are a good source of renewable energy because they produce fewer emissions and they are cost-effective and versatile."