Ceiling fan efficiency is an extremely broad term to be fair. Nevertheless, it can simply be said that, the easier it is for the ceiling fan to run, it’ll have higher the efficiency. This means that excessive usage will make the motor hot which means more heat loss.
Moreover, humid weather can also make the situation trickier and make the fan less efficient. Less efficiency means a fan that was originally operating at 45 watts now might consume 50-55 watts for the same performance, hence, more cost.
We’ve done all but calculate the running cost of a typical fan in Pakistan, so, let’s do that.