Inverters

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This type of system comprise of the solar panels, inverter and the battery. This system replaces electricity. Your house will have solar as the primary source of power with electricity as a back-up, in case it rains non-stop for five or more days. This system is not only economical, it preserves the environment as theres no carbon emission in the generation of power.

In this type of the system the inverter has a battery that is charged by electricity and the system is connected to the main switch. It uses electricity as the primary source of power. Solar will only kick in when theres no electricity. To help you chose the right size of the inverter for your household needs, our technicians need to know the number of lights and appliances in your house, excluding the geyser and the stove. The system will run for 12 hours, which is enough for load-shedding or any power supply disruption due to maintenance or cable theft.

For regular consumer use, and alternating current (AC) is needed 120 volt AC powered home appliances require AC electricity. This is where an inverter comes in. The inverter takes the direct current and (note: this is a very simplified explanation) runs it through a transformer. It is almost as though the inverter is tricking the transformer into thinking it is getting AC by forcing the DC to act in a way similar to AC the inverter runs the DC through two or more transistors that are rapidly turned on and off and feeding two different sides of the transformer.

The semiconductor layers are a combination of both positive and negative layers, and they are connected through a junction. Basically, as the sun shines down, the semiconductor material absorbs the light, transferring the lights energy to the PV cell. This energy knocks electrons loose, and they move from one layer to the other, thereby producing an electric current. This is a direct current (DC). The energy created is then generally either stored in a battery bank for later use or sent directly to an inverter, depending on the set up and type of system.

To explain how solar inverters work, you must start from the beginning. The sun shines down onto photovoltaic (PV) cells. These cells are made of semiconductor layers of crystalline silicon or gallium arsenide, and they are arranged into panels.