How Solar Panels Work



There can be a lot of mystery when it comes to how solar panels work. As more and more people in Park City are switching to solar, you might be wondering what the solar panels on top of your neighbors house are doing? Even though a lot of complex processes and technologies are involved in making solar panels, the way they function can be easily understood.

The Solar Panel

Many different companies have started manufacturing solar panels. Some are better than others, we recommend SolarWorld, but the science behind them is the same. The solar panels you see in Park City are mostly single-crystal cells. They have two different layers of semiconductor; one for a positive charge(p-type) and one for a negative charge(n-type). When sunlight enters the solar cells, it excites the electrons in the negative charge layer and causes them to want to jump to the positive charge layer. Circuits(thin wires) are placed between the layers which forces the electrons to flow through the wires and into your inverter. You now have electricity that has been produced by sun and is ready to use.

The Inverter

From your solar panels, the electrons that have been directed into a circuit are put into an inverter. The inverter changes the electrical flow from DC(direct current) to AC(alternating current). Homes use AC power because it is more easily controllable then DC power.

Grid Tie

Your panels will be connected to the normal utility grid via a net meter. The net meter will record how much energy your panels are producing and will direct any excess power to the grid. You get a credit for every watt of excess power that is put into the utility grid. This credit can be used at a later time, such as at night.

The science behind solar panels is amazing. They allow us to produce clean energy that doesn’t harm the environment and saves people money. We now live in a time where Park City solar has become economically viable. Making the switch to solar is logical and will save you money.