Photovoltaic systems are fast becoming a popular choice as an excellent alternative source of energy. These systems are at the core of using solar energy that is used to power a wide array of applications. Photovoltaic systems are fundamentally constituted of photovoltaic modules, which are basically an interconnected matrix of multiple photovoltaic cells (solar cells). Thus photovoltaic systems are essentially a collection of photovoltaic modules, arranged together to form a solar panel or a photovoltaic array.
A single cell is usually not powerful enough to generate sufficient electricity to be of much use. But a whole array of them is another story. They can produce enough power to suffice an entire urban home. Dictated by practical needs, and also for long-term economy, multiple photovoltaic cells (solar cells) are usually used together in a photovoltaic module. However, that’s not the end of the story. A number of such modules are again used together to complete the photovoltaic system. A photovoltaic panel (or a solar panel, as it is commonly referred to) features an assemblage of photovoltaic modules that are fastened together by suitable mechanical means, are wired with each other and constructed to be used as a unit that can be readily installed and used. These panels, in order to improve their longevity, often carry a protective glass covering as well as a frame constructed of plastic, fiberglass or metal. Remember, photovoltaic systems are not very robust in nature. They are particularly prone to the ravages of the elements. As such, they usually require some degree of protection from the usual environmental impact and ravages.
Today, photovoltaic systems are being manufactured by a large number of companies. These systems come in different shapes and sizes. However, in most cases, the modules consist of wafer-based crystalline silicon or cadmium telluride cells. All photovoltaic systems carry some common features without which they would be pretty much useless. In order to be fully functional, the photovoltaic cells in a properly set up photovoltaic system must be electrically connected to each other.
Proper care should also be taken to ensure that the cells are not damaged in transit or during installation. It should also be ensured that adequate protective measures be taken to shield them from such environmental hazards as hail, snow and heavy wind. Wafer-based silicon cells are very brittle in nature and they call for extra care.
With so many useful resources available today, especially on the Internet, it is not a difficult preposition to set up photovoltaic systems at home. However, the job calls for some degree of familiarity with solar power technology. How do solar panels work – information on this is always helpful. What is the cost of solar panels and where can you get it and other parts cheap? Where do you set up the system and how do you install it? How to wire the system? What are the safety precautions? A step-by-step guide clearly walks you through all the necessary steps, and helps you get started on the right path.