Wireless electricity is becoming a reality, thanks to advancements in microwave transmission, lasers, and radio waves. This technology, first envisioned by Nikola Tesla in 1901, uses electromagnetic waves to transmit electricity from a source to a receiver, potentially revolutionizing the way we think about energy.

*How it Works:*

- *Power Beaming*: Electromagnetic waves transmit electricity from a source (e.g., home generator or space-based solar station) to a receiver.

- *Efficiency*: Modern systems achieve up to 95% efficiency, with some aiming for 99% in the near future.

*Potential Applications:*

- *Homes*: Wireless electricity could power homes without wires or plugs.

- *Drones and Satellites*: Mid-air charging enables indefinite flight.

- *Electric Vehicles*: Charging while driving on highways.

- *Remote Regions*: Access to energy without costly infrastructure.

- *Emergency Response*: Wireless receivers replace fuel-powered generators.

*Challenges:*

- *Energy Efficiency*: Minimizing transmission loss.

- *Safety Concerns*: Ensuring energy beams don't harm humans or animals.

- *Infrastructure*: Large receiving antennas required for long-range power.

Companies like EMROD, Reach Power, Powercast, and Wi-Charge are developing scalable solutions, with some already testing wireless electricity for smart sensors and retail lighting. NASA and Japan's space agency JAXA are also exploring this technology, with JAXA planning to launch a space solar station to deliver 1 gigawatt of power by 2030 ¹ ².