Compared to a tower fan, pedestal fans will consume more energy. This is due to its larger size and a larger capacity to cause airflow. But at the same time, you will get more airflow, which is favourable for bedrooms. When compared to ceiling fans, it is much lesser. This is because ceiling fans are heavier and also larger in size. This causes them to require more energy to move. Therefore, for concentrated airflow, pedestal fans are better but for overall airflow, ceiling fans do a good job.