You must have noticed the sparkling, color-filled rooftops that many buildings have these days, haven’t you? These rooftops seem to dazzle with colors of various shades as soon as the sunlight falls on them. However, these are not at all mere fancy items that only enhance the beauty of a home. In fact, they are solar panels, which serve a very important purpose, viz., the generation of electricity, which can be used by the householders for domestic purposes. Over 10,000 residences in the United States of America are found to possess domestic solar power systems, according to a survey that was held recently. Solar photovoltaic cells are found to be present in more than 200,000 blocks of houses (in the major American cities). These solar cells generate power in the AC form. Also, far from being only a local phenomenon of the United bo hoa luoi nang luong mat troi , the growing popularity of solar power is, in fact a global trend. All over the world, a greater number of users are switching over to solar power systems with time.
Know the intricacies of a solar power system
A typical solar power system has certain specified components. Firstly, an inverter needs to be present, which would be able to generate usable 120 volt AC electric power, when DC current is passed through it. The DC current, in turn, is produced by harnessing the solar energy that is captured by the photovoltaic panels. Wires are required to keep the parts of the system together, and different poles and clamps are used to set up the solar power system on the top of roofs and/or in areas which receive abundant sunlight for the majority of the day. In addition, the system might also be provided with a battery backup too. For practical purposes, a certain number of photovoltaic (PV) cells are clustered together to form a module. Several such modules can then be combined to get a solar panel.
Let us now try to understand what the necessity of using these systems is, and who actually uses them. Two basic reasons become immediately apparent, due to which solar power systems are becoming popular in both grid areas as well as non-grid localities (where utility power remains inaccessible for people).
Normally, power is generated by the systems only during the day time, as long as sunlight remains available. This is because, these systems stop working at night. This factor worked against the solar power units, and prevented them from becoming popular earlier. As a result, solar power could not be used much at that time. However, the situation has completely undergone a change owing to the tremendous technological advances that have taken place. Now, extra amounts of electricity, produced during the day, can be stored and later on, retrieved and used during the night. The storage of electric power is also useful on days that remain cloud-covered. Indeed, technological progresses have made the modern solar power system extremely useful.