PV panels are a solar-electronic system’s defining component where sunlight is used to make direct current (DC) Electricity. This implies that by their very nature, they convert radiation to electricity. Behind a PV panel’s shimmering façade, wafers of semi conductor material work their magic, using light (photons) to generate electricity. This is known as the photovoltaic effect. Among the renewable resources, only in solar power do we find the potential for an energy source capable of supplying more energy than is used
PV systems are assigned a rating in watts based on the maximum power they can produce under ideal sun and temperature conditions. The rated output can be used to determine how many panels you’ll need to meet your electrical needs. Multiple modules combined together are called an array.
Therefore, as the primary element of construction of solar panels, silicon, is known to be the second most common element on the planet, there is very little environmental disturbance caused by the creation of solar panels. PV modules are very durable and long lasting- most could last for 25 years. They can withstand severe weather including extreme heat, cold and hail stone
Panels can be wired either in series or parallel. For example, if your panels are 24 volt and your controller and batteries are 24 volt, then one will need to wire the panels in parallel. These are done by connecting all the positives connections together and separately connect all the negatives together. To connect pairs of panels in series, the positive terminal of one panel is connected to the negative of the next; this is done so as to increase the voltage.
Another thing to consider is the type of wire to use. We generally think of electricity flowing freely through an electric cable; however cables will have a resistance that will tend to restrict that flow to a small but possibly significant degree. This resistance will be proportional to the length of the cable (the longer the cable the greater the resistance), and inversely proportional to the cross sectional area (a fatter cable has less resistance).
Timothy Kolawole has helped different people get information about solar energy for their homes. For more FREE report, visit:
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