Wireless Energy Transfer (WET) or Wireless Power Transfer (WPT) is the process of electrical energy (electricity) transmitting from the power source to electrical loads without interconnecting wires. A WET system consists of a power source and transmitter device to convert the power to the electromagnetic field, and one or more receiver devices or electrical loads. A WET technologies for transmitting energy differ in the distance – electromagnetic fields (wavelength); Inductive Charging (power is transferred through the plastic cases using magnetic induction); Resonance Charging (magnetic resonance chargers charge batteries in low-power devices without connection). Increasing the distance and transfer electricity safely and efficiently with a WET technology (e.g., electric vehicle charge) is still a challenge.

Related Definitions in the Project: The Technology Definitions; Renewable Energy; Energy Definitions