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How to produce electricity

How to produce electricity


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How to produce electricity: experiments and income methods to produce free electricity from various alternative sources such as heat, wood, photovoltaic cells ... but also a potato or a lemon!

Produce electricity it can be a very rewarding experiment. The batteries are based on the principle that sees the current pass between two metals through a suitable solution, even at home we can produce electricity by recreating batteries natural.

Make a battery with a lemon or a potato

The batteries can be made with vegetables such as lemons and olives, the important thing is that they have a good amount of juice since it allows the current to pass. The most popular vegetable for this experiment is the potato, it can be used both raw and boiled even if cooked it is more efficient and could illuminate a light bulb for days or even weeks.

How to produce electricity with a potato

What is needed for produce electricity? A potato, a zinc strip, a copper strip, copper wires for connection and a voltmeter. The copper and zinc strips will act as electrodes. They must both be inserted into the potato, placed next to each other but in such a way that they do not touch each other. At this point, by connecting the voltmeter to the potato, a certain voltage can be observed. L'power made from a potato can be comparable to that of a 1.2 volt battery. By connecting the electrodes you will have already built your battery but the biggest challenge is produce electricity constantly, which can be achieved with the construction of photovoltaic panels. To test your battery you will need a light with clamps. Connect the clamps to your battery and you will notice that the small light bulb will spring into action.

How to produce electricity with a lemon

At this link you can find all the electrical components to build a clock that works with a potato or a lemon.

If the experiment fails, make sure that the two electrodes are well inserted in the potato and push down the "T" button that connects the voltmeter to the battery to the potato, this is the only way to testify to the presence of a voltage. The analog voltmeters will indicate a voltage lower than 1.2, this is because the analog detector is powered by the same potato while the digital voltmeter has its own internal battery and is not powered by our "pile / potato". How can a potato produce electricity? The potato, with the electrodes thus arranged, forms a real pile where the copper strip acts as a cathode while the zinc (or aluminum) strip acts as an anode. The potato juice thus becomes an excellent electrolytic solution and presses the flow of electrons that move towards the anode starting from the cathode.

How to produce electricity from wood

Not just experiments. It is possible to produce electricity from nothing, or rather, with biomass that is easy to find: wood. They are called "cogeneration plants" and are the plants that allow you to generate electricity from wood. The principle they use is that of cogeneration: a process that takes place thanks to the use of untreated wood chips and which offers significant advantages. In addition to the production of electricity, gases can be produced from wood to be used in combustion. In this context, the required plant is a wood gasifier. Based on the amount of wood you have, carry out a good sizing (evaluating the amount of energy produced with the amount of wood available to you) and evaluate different wood cogeneration plant quotes.

How to produce electricity from water

Those lucky enough to have a certain flow of water (even limited as that of the canals used for irrigation typically is) can use it for the production of DIY electricity. This energy source is often neglected due to the dense bureaucracy that must be faced for the installation of a micro-hydro or mini-hydroelectric plant. In Italy we make little distinction between micro, pico and mini hydro. In general, we tend to classify any hydroelectric plant with a power of less than 100 kW as a mini hydroelectric plant. Micro hydroelectric power plants can be installed in different contexts, even in artificial waterways or tanks. For more information on the production of electricity from water, please visit the page:micro-hydroelectric.

Produce electricity for sale

If you are consideringproduce electricitydestined for sale, photovoltaics are still a good investment. For the sale of photovoltaic solar energy, the said solution is available"Online transfer": in this way, all the photovoltaic energy produced is fed into the national electricity network and will be paid at a cost per kilowatt hour agreed upon at the time of signing the transfer contract. For all information on the production of photovoltaic electricity for sale, we invite you to read the article dedicated to "transfer of photovoltaics to the grid“.

How to produce electricity for self-consumption

Anyone who owns a mountain hut knows how difficult it is to supply electricity away from the national grid. In this context, we can produce electricity with so-called off grid or stand alone systems. In particular, you can produce electricity from:

  • an independent photovoltaic system
  • an off-grid domestic wind power plant

If the house to be furnished is large while the surface exposed to the sun is limited, we recommend that you take advantage of both sources of clean energy. An off-grid photovoltaic system is relatively accessible and easy to install. To find all the information on these two technologies, please visit the pages:

  • domestic wind off grid, how it works
  • independent photovoltaic system, components and operation


Video: Mobile charging with a potato (May 2022).