Now Wireless Electricity Is a Reality

By: | August 13th, 2020

Image courtesy: Emrod

New Zealand-based startup Emrod has developed the world’s first long-range, high-power, wireless electric power transmission as an alternative to existing copper line technology. The company is working on implementing its system with collaboration with the country’s second-largest power distributor ‘Powerco’.

It was Tesla’s dream to transmit power wirelessly anywhere on the globe

It is not a new concept. In the 1890s Nikola Tesla proved he could power light bulbs from over two miles away using 140-foot Tesla coil. However, in this process, he burned out the dynamo at the local power plant. As a result, it resulted in a blackout in the town of Colorado Springs.

Surprisingly, it has taken 120 years. Now Powerco is investing in Emrod, whose technology is capable of shifting electricity efficiently between any two points that can be joined with line-of-sight relays. 

Science behind:

 The system works by efficiently transmitting energy wirelessly over long distances using electromagnetic waves. The system has a transmitting antenna, a series of relays, and a receiving rectenna. Electricity will be transmitted wirelessly through a transmitting antenna, and a receiving rectenna will convert microwave energy into electricity. 

The beams transmitted will make use of the non-ionizing Industrial, Scientific and Medical band of the radio spectrum.

The major challenge with renewable energies is to deliver energy using traditional methods. As in the case of offshore wind farms, it requires the installation of underwater cables which are expensive to install and maintain. 

With this technology, power can economically reach the places with difficult terrain and places that just can’t afford a certain level of physical infrastructure.

Nidhi Goyal

Nidhi is a gold medalist Post Graduate in Atmospheric and Oceanic Sciences.

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