Yes, Tesla's wireless power transmission technology was highly efficient. According to reports, Tesla's initial wireless power transmissions had an efficiency of nearly 97%.
Tesla's wireless power transmission technology was groundbreaking when it was first developed in the late 19th century. Tesla designed a wireless power transmission system capable of sending electricity over long distances with very little energy lost in the transmission. He tested this system with several devices, including an early version of a Tesla coil, which achieved an efficiency of nearly 97% in its power transmission.
Since the days of Tesla's experiments, wireless power transmission technology has seen major improvements in efficiency and range. Modern wireless power transmission technology boasts a transmission efficiency of between 90-99%. Additionally, wireless power now has a range of up to 300 feet.
Due to its highly efficient performance, wireless power transmission technology is now being incorporated into a range of products and applications, from home and office wireless charging systems to electric vehicle charging circuits.
For more information on this topic, please visit the following link:
https://www.rfdesign.com/the-modern-state-of-wireless-power-transmission/