- Depending on the location and the kind of solar PV tracking being used, the current breakeven point is for systems sizes between 500 to 600 watts. The breakeven point is where the solar tracker system pay for itself and make the entire system economically positive. It will be more advantageous to use solar trackers than buying PV panels if one has six 75 watt solar panels being used with a solar PV tracker that tracks the sun from morning until night.
- Using solar trackers during summer where the panels can generate the most electricity can build electricity surplus, which may be sold to the utility in some cases that can be used to offset during winter time.
- The kind of tracker being used will depend on the location and the amount of sun received. In cold and windy places, a thermally operated system is not reliable because it is dependent on temperature to operate. Electronically operated systems are better in cold and windy places, as they do not depend on temperature capacity to move the panels.
- Solar trackers are very valuable investment as they increase solar panels’ efficiency from 25% to 40%.
As non-renewable sources of energy continue to deplete and as prices continually rise, people are now beginning to utilize alternative sources. One of the cheapest and readily available resources with the potential of energy conversion is the sunlight. Especially in vast areas, the sunlight is highly abundant and free. Fortunately and with the power of science, sunlight can now be easily converted into usable electricity through Solar PV panels. These are structures that perform the absorption, conversion and transfer of the energy from the sun to the form that households and businesses may use.
Across the globe, many countries are beginning to shift to solar energy. In fact, some smaller countries have begun to rely on solar energy alone. This development has been a medium for development in these countries as they no longer rely on crude oil that is usually imported. With its growing popularity and contribution to development, one may begin to wonder how Solar PV electrical panels work. Many would inquire about the science behind this breakthrough and how such structures are able to yield the electricity that now fuels a significant percentage of humanity.
The main component of Solar PV panels is solar cells. The solar or photovoltaic (PV) cell is responsible for the derivation of the electricity. Solar PV electrical panels are composed of groups of PV cells that are connected to put together the energy that they have converted. The collection of electric current from each of the solar cells flow through the inverter and to the appliances or equipment that requires electricity.
Most solar cells are made of the semiconductor silicon. It gathers the energy by absorbing the photons of the sunlight. This process results to heat that “excites” the electrons in the silicon. This “excitement” is the electric current that will be sorted and then distributed to the circuit that is connected to the receiving end. Since the circuit will carry out the collective amount of electricity produced, this amount depends on the number of solar cells. This is the reason why the size of the solar electric PV panels matter. The bigger the panel, the more the solar cells it can contain and the more electricity will be produced.
However, do not think that having bigger solar PV panels would readily mean that the much energy is produced. The efficiency of the panels also differs and this determines how much of the energy is absorbed, converted and transmitted. Currently, there are three kinds of solar cells that are being used. These are the 1st, 2nd and 3rd generation solar cells. Each one has varying efficiency and therefore, they also have varying costs.
It is highly recommended to seek professional advice to find out which type is suitable for your needs. This way, you can be more cost-efficient and at the same time ensure safety in your set-up.
The way by which solar electric PV panels work has been a breakthrough. And until today, researchers