Moving air is "cooler" than still air. Go to weather.com -> Colombo, Sri Lanka and there you can find "Feels Like" temperature. It is how warm temperatures feel to your body. Feels Like temperature is "calculated" using air temperature, wind speed and humidity.
Fans operate on this principle, i.e. it circulates air around you giving you a "cool" comfort.
There is no question that we need both ceiling fan and pedestal fan, just because their usage is different. But we can control how they are used. Average wattage of these two fans are listed below:
|Ceiling fan||70 - 90|
|Pedestal fan||40 - 55|
So, you can save ~30 watts of power ultimately reducing your energy bill if you switch to Pedestal Fan.