Parts of a residential photo voltaic energy system | michelle921's Blog

A Residential photo voltaic energy program consists of four components : photovoltaic panels, charging controller, battery pack and an inverter. The photovoltaic panels convert sun light into electricity. The electricity is sent towards the charging controller who keeps the battery pack fully charged, but not over charged. The battery pack sends the electrical power to the inverter who converts the DC voltage to household AC at 120 volts and 60 hertz.

Photovoltaic panel

The output of the solar panel is stated in watts. The wattage is stated is usually for peak sun several hours. Since the amount of sun light varies via the course of the day, to level out the variations the peak sun several hours has been adopted by most manufactures to help installers and customer's compare different photo voltaic panel models.

Suppose a photo voltaic panel is rated for 100 watts and an average of six peak sun several hours is available per day. Then the photo voltaic panel would produce 100 watts * 6 peak hours = 600 watt several hours of electricity or 0.6 kilo watt several hours (KWh).

Charging controller

Charging controller or charge regulator controls the charging from the battery pack. It continually monitors the battery pack's charge state. If the batteries are low, it will send electricity from the solar panels towards the electric batteries. It also prevents more than charging from the

battery pack.

Do not allow somebody to convince you that a charging controller isn't truly required. Directly connecting the photovoltaic panels to the battery pack can permanently damage the electric batteries and possibly cause them to explode.

Battery pack

The battery pack's purpose would be to store electrical power generated by the solar panels throughout the day after which at night or during extremely cloudy days offer electrical power towards the inverter.

The battery pack usually consists of lead acid electric batteries. Lead acid electric batteries are relatively inexpensive and readily obtainable. There are lots of different types, sizes and capacities of electric batteries available. The most well-known are gel cell and AGM deep cycle batteries simply because they are maintenance free of charge and last a great deal longer than wet cell lead acid electric batteries.

One of the most essential thing to remember about the electric batteries is that the require to be deep cycle. Deep cycle electric batteries are designed to be discharged then recharged hundreds if not thousands of times. A deep cycle battery is designed to discharged to nearly empty, but not completely after which be slowly recharged more than time. A common mistake for home owners is to believe that they can use automotive batteries instead of deep cycle batteries. Car electric batteries are shallow cycle batteries. They are created to discharge a lot of current quickly after which be instantly recharged.

Inverter

An inverter converts the DC electrical power stored within the battery pack into household 120V AC. Nearly everything in your house is powered by 120V electrical power. Things like table lamps, freezer, lights, motors, dishwasher, and so on.

Now you have a fundamental understanding of photo voltaic energy how it functions to energy your house. Now you have sufficient information about how solar power functions to determine if it is a technology that you would wish to invest in for your house.


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