This dryer does not seem any more energy efficient than a standard dryer and it takes longer to dry clothes than a standard dryer. The only advantage is that it doesn’t need an external vent to dissipate the moisture. – So it is a good option in enclosed rooms. It has a few quirks. The auto moisture detection feature does not work very well though. You are best just using the “gentle” dry where you can specify a time for drying without it automatically shutting off.