Blog Posts of '2021 May'

Its easier for solar panels system to be used to charge electric car batteries while its parked in your garage, and/or to run the electric car directly instead of connected to the power grid for synchronization (grid tie solar system). The solar system can be used not for only the car, but for train, bus and tram, and its highly expected that such electric vehicle will be one of the most preferred transport method in the coming few years, it will be widely used in homes and business. And the price of solar panels is also very cheap, almost every household can use it.

The sun light is a range of spectrum; it consists of units called photons. When these photons strike the solar cell surface, they can be absorbed by the cell or reflected by the cell. The absorbed amount of photons will be converted to electricity as described above, and the reflected amount are just a waste with no benefits. So, when solar cell manufacturer wants to increase the solar cell efficiency, he is trying to reduce reflected amount of photons, and increase the absorbed amount of photons, and nowadays there are ongoing different technologies aim to increase the solar cell efficiency, and moreover, they are developed day after day via scientists and original designer manufacturers.

The second main benefit of the solar system is reducing or even eliminating our electricity bill, which goes up by time passing, and nowadays in most of countries it constituted as considerable amount to be paid by the customers. Moreover, and if our solar system is large enough, we will get paid from the electric utility for surplus electricity we shall export to the electric network (considering your solar system is connected to the grid, and it generates electricity more than you will use).

Let us look at cost evolution trajectory, as the prime component of the solar system is the solar cell which made mainly from semiconductors (silicon material), and as these semi-conductor’s material price has fallen down, also by deep looking on its cost reduction trajectory and monitoring solar panels prices development, the solar specialists confirmed that solar energy costs have fallen by around 18-22% (20% in average) in recent years.

You may imagine that this may not be fetched in the future, but we confirm you that it will be reached in very near future, as simply many of these technologies are actually under trails in laboratories, and the manufacturers/expertise’s have already achieved a great progress. The one obstacle in such progress way, is the cost barrier, but this will be surely covered and returned back with high profits after the implementation of these technologies on the land, and to be used in the market. From the history, it is proven that solar panels costs have fallen dramatically although of glitches and bumps solar industry faced, the solar panel price has fallen from 6USD per one watt in 2007 to 1USD per one watt nowadays, and the analysts expect more cost reductions will be achieved in very near future with more researches taking place, of course this will encourage using solar industry in all our life styles, so we confirm that solar will be the future of all the human beings.

The silicon atom has fourteen electrons, 2 of them are in the first shell, 8 of them are in the second shell, and remaining 4 are in the outer shell, so the 2 first shells are completely full, and outer shell has just 4 electrons. This atom is always looking for a way to full its outer shell to 8 electrons, and this the wonder of physics science. In order for the silicon atom to do so, it shares 4 electrons with other 4 nearby silicon atoms and create crystalline silicon. This pure crystalline silicon is electrically poor in conductivity, because there no longer be free electrons to move, that makes the solar scientist to add impurities in a form of other atoms of boron and phosphorous to solve this issue and to create free electrons with the ability to move.

The first solar collector was made in 1767 by scientist called De Saussure, it was like solar oven, afterwards, a scientist called Antoine Lavosier discovered the photo-voltaic phenomena of silicon material, in which "photo"means the light, and "voltaic"means the electricity, and that was the first start of modern solar energy which already conducted in the year 1839. And in the year 1990, we start to see many solar energy materials discovers, like copper, cadmium and others. Nowadays, the world solar panel production reached up to approximately 40MW or more per year, and the typical solar panel efficiency is approx. 16%. At the end, we still confirm that it will be promising and excited future for solar power industry.

The solar module is the basic block of building our solar photovoltaic system, we connect the solar cell together same like batteries bank system, we mean in series, and for more clarification, we connect the positive terminal of one solar cell to the negative terminal of the second solar cell, and so on, in that way the voltage and power of all solar cells will add to each other, and at the end, we got the module with a standard output voltage and power. For example, the solar cell output voltage is approx. 0.5V, so if we connect 300 solar cell in series, the module standard output voltage would be 0.5 x 300 = 150Volt.

Solar pump inverter is an off-grid or stand-alone inverter that converts DC power getting from solar panels (photovoltaic array) to AC power to supply pumping system. With solar radiation changes, solar panels output DC power will change, so the solar inverter play an important role in receiving such variable power and producing maximum AC power to the pump, also it adjusts output frequency in real time so can run the pumping system at max efficiency. Before deciding on the size of solar pump inverter for pump and solar panels, you need to confirm one thing first. What needs to be checked is the pump motor itself, whether it is compatible and suitable for use with the inverter.