There is static electricity in the earth, which can theoretically be extracted and used for personal purposes. The available methods of accumulating electricity from the ground do not allow you to supply free electricity to the whole house. This voltage is barely sufficient for 1-2 LED bulbs. Do not believe the promises of advertisers and do not buy devices to extract electricity from the earth for free. If you want to experiment, use the workflows described in this article.
Zero wire – load – ground
This method was commonly referred to as the Belousov scheme after a practical scientist who studied lightning and a lightning protection system. To get electricity in this way, you will need:
- two passive ground electrodes through which the electrical discharges present in the ground will pass;
- two capacitors interconnected by positive plates;
- two inductors.
An electrical appliance or an incandescent bulb must be connected to the second coil. It is very important to have a voltmeter at hand and not to confuse the phase with “zero”.
The circuit will work if there is a potential difference between the neutral wire and the ground loop. As experiments show, this difference is on average 10-20 V. Before starting the installation of the system, it is recommended to check this value in your home and make sure that the difference is there. If there is a transformer at hand, the value of the extracted energy can be increased.
Zinc and copper electrode
This method is called galvanic. It works on the principle of conventional batteries. The source of electricity is a chemical reaction between metal electrodes and a natural electrolyte.
To get electricity in this way, you need:
- two metal electrodes that form a galvanic pair (for example, zinc and copper electrodes);
- saline solution.
The electrodes are immersed in the ground at a distance of 25-30 cm from each other. The space between them is filled with saline solution. After 10-15 minutes, a chemical reaction will begin to occur and an output current of 1-3 V will be obtained. This voltage is quite sufficient to power a low-current device.
The efficiency of the installation depends on:
- the dimensions of the electrodes (length, height and their section, the greater these values, the more efficient the installation will be);
- the depth of placement of the electrodes (the deeper they are, the more electricity can be collected;
- concentration of the saline solution (the more saline there is, the better the current will be generated and the more efficiently the installation will work).
Over time, the concentration of the saline solution will decrease, so the electrical installation will have to be moved to a new location.
Potential between roof and ground
This method can be used in private houses with a metal roof. To implement it, you will need:
- an electrode connected to a roof insulated from earth;
- an electrode connected to a ground wire or simply pushed into the ground.
The effectiveness of this method depends on:
- roof area (the larger, the better);
- the height of the structure (the higher it is, the more efficient it is).
In the private sector, it thus turns out to collect 1-2 V, which is enough to operate one or two LED lamps.
Modern know-how does not allow accumulating electricity from the earth in volumes that make it possible to completely abandon the centralized power supply system. But, using homemade methods, it is really free to highlight garden paths in the country.