What is a solar inverter and how does it work?

Views: 0     Author: Site Editor     Publish Time: 2024-05-31      Origin: Site

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With the increased interest in renewable energy sources across the globe, the interest in solar systems has also shot up at amazing rates. The ability of the sun to power an entire home is a huge environmental plus (think of all the electricity saved!) and is a great use of a resource that we have many hours of each and every week.

But, when it comes to solar systems, do you actually know what they are made up of and how they work? Solar systems consist of solar panels, (or photovoltaic (PV) panels), a solar inverter (super important) and a rack to keep everything in place. They may also contain a battery, depending on the system and an electric meter, and the amount and type of panels for each system will depend on the energy output needed. Considering how important and beneficial solar systems , we thought we would put together a little information regarding solar inverters, how they work and what to look for in a good solar inverter, given their importance. If you have any questions after you have read this article, 

What is a solar inverter?

A solar inverter is one of the most crucial parts of a solar power system. A solar inverter converts the energy output from solar panels into a usable electricity form, to be utilised in your home or workplace.

How does a solar inverter work?

A solar inverter works by taking in the variable direct current, or DC output, from your solar panels and transforming it into alternating 120V/240V current, or AC output. The appliances in your home run on AC, not DC, which is why the solar inverter must change the DC output that is collected by your solar panels.

When the energy gets sent to the inverter, it is in DC format but your home requires AC. The inverter grabs the energy and runs it through a transformer, which then spits out an AC output. The inverter, in essence, ‘tricks’ the transformer into thinking that the DC is actually AC, by forcing it to act in a way like AC – the inverter runs the DC through two or more transistors that turn on and off super fast and feed two varying sides of the transformer.

To be a little more technical, the sun shines down on your solar panels (or photovoltaic (PV) cells), which are made of semiconductor layers of crystalline silicon or gallium arsenide. These layers are a combo of both positive and negative layers, which are connected by a junction. When the sun shines, the semiconductor layers absorb the light and send the energy to the PV cell. This energy runs around and bumps electrons lose, and they move between the positive and negative layers, producing an electric current known as direct current (DC). Once this energy is produced, it is either stored in a battery for later use or sent directly to an inverter (this depends on the type of system you have).


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Zhongshan Alltop Lighting Co., Ltd.