Welcome to the age of wireless electricity.
Nikola Tesla once envisioned a world where electricity could be transmitted wirelessly, eliminating the need for wires and revolutionizing energy distribution.
Over a century later, that dream is on the brink of becoming reality.
Companies worldwide, from America’s Wave Inc. to Japan’s Space Power Technologies and New Zealand’s Emrod, are pioneering wireless power transmission technologies. These innovations range from microwave and laser-based energy transfer to solar satellites that beam electricity from space. New Zealand is already testing Emrod’s wireless energy infrastructure, which could provide clean, sustainable power across difficult terrains. Meanwhile, advancements like wireless EV charging roads and underground charging systems are making the technology more practical than ever.
As promising as wireless electricity sounds, challenges remain—chief among them, public skepticism and efficiency concerns.
Despite this, major institutions like Caltech and Purdue University are pushing forward, with projects aimed at developing large-scale wireless power solutions. Whether through inductive charging for electric vehicles, space-based solar power, or rectenna-driven energy grids, the world is inching closer to Tesla’s vision. If successful, wireless electricity could revolutionize industries, eliminate the limitations of traditional power grids, and usher in a new era of energy sustainability.
The future of power might just be as simple as turning on a switch—without plugging in.
Learn more.
https://www.popularmechanics.com/science/a33522699/wireless-…w-zealand/
https://www.caltech.edu/about/news/caltech-announces-breakth…er-project
Wirelessly sending power through the earth is a project funded by the National Science Federation (NSF). The purpose of this experiment is to send power to sensors in a field an and to determine the characteristics and viability of sending power within the earth.
The principle of earth transmission is similar to the single wire wireless power transfer characteristics of a coil. The earth completes a path between the top and bottom electrode of the system.
Placing a current through the top electrode of the well will cause a current that will transmit into the earth and propagate across the skin layer of the earth. This is a very similar phenomenon like seen in a Zenneck wave. This allows for the current being sent into the well to travel over long distances reaching to potentially a few mile.