DIY Green Energy For Homes
 

TV And Radio Waves As A Source Of Electricity

As energy needs continue to grow and the cost continues to increase, there is a rise in the search for alternative power sources or even free energy devices.

While solar options are on the rise and are being selected for cost efficiency, another possible source in TV and radio waves are worth investigating as a source of electricity.

TV and radio waves are possibly offering a new source of electricity to power small sensors. They currently have the opportunity to be used in the place of batteries.

Although the power yielded may not be as much as a solar option, it offers a source that can be combined with other alternatives for maximum energy efficiency. The power from these waves can be collected in radio stations, cell phone towers, Wi-Fi transmitters, and TV towers.

Current researchers are examining the circuitry used with these wave technologies to determine the best usage and translation to the everyday user. Focus is on reducing the power required by low-power wireless devices.

Success is this area would prove beneficial to consumers in the availability of small technical devices that require even less power to run on. There may also be opportunity to extend the life of some devices before they would have to be used again. This creates greater usage probability and usability for consumers.

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Other research is lending to determining how to gather TV and radio wave power from the environment. If such a feat is achieved, this can possibly allow for the opportunity for the development of devices that can be used indefinitely, since small devices require very little power to begin with. Such devices had been named after the famous scientist Nikola Tesla and are called Tesla free energy generators.

The power needs of small devices may be as little as one to five microwatts. These may be items in the range of a solar calculator. Devices that require even less energy are good candidates for using TV and radio waves as a power source. This would save consumers money over time in the cost of replacement batteries and electric bills.

As an example, researchers have used a “rectenna” to gather small amounts of energy for low power electronics. A rectenna is explained to be a device that converts radio waves into electricity. 

The amount of energy that can be converted is dependent upon the proximity of the rectenna to the power source. The device is small and starts at a usage of 50μm of power. The idea is to capture electrical waves within a home or office environment from wireless LAN or digital terrestrial broadcast waves by attaching the rectenna to an outside wall.

This was successfully done to collect 1.2mV and 0.06µW of power at a hall in Tokyo at a location that was 5.5km from the digital terrestrial broadcast signals sent from Tokyo Tower. A closer proximity could have generated even more power.

The translation of this technology to power small devices in a home setting is powerful. This technology could allow for the total replacement of power usage by TV and radio waves at best, or the reduction of energy requirements by the device at worst. Both could end a dependency on electricity and batteries for these devices.

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