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What Is PV Solar Power?
PV solar power is totally different from other types. Of the 2 principal kinds of solar power, active and passive, PV solar power is active. Let's look at it.
Solar Panel
Active solar power relies on solar panels. You may picture them as flat, rectangular boxes on rooftops.
You will find two main types of solar panel. From a distance, both appear like rectangular boxes. Both change sunlight into energy, but in two different ways. The terms for the two solar panel types are solar thermal collector as well as photovoltaic module.
1. Solar thermal collector: This solar panel takes in solar power from the sunlight and uses it to heat air or water.
2. Photovoltaic module: This second type of solar panel collects solar energy and converts it to usable electricity.
Meet the PV
To answer the question, what's PV solar energy, we have to know what the PV is. The short answer is that PV refers to a photovoltaic module. "P" is for photo and "V" for voltaic.
In simple terms, "photo" refers to rays from the sun and "voltaic" pertains to electrical power. PV panels convert sunshine into electrical energy. Sunlight flows into the solar panel. Electrical energy flows out of the solar panel.
A PV solar panel is made up of a lot of photovoltaic (light to volts) cells. These specific cells are electrically linked, and covered with glass. The glass provides electrical insulation. It is also good protection from weather and other damaging forces.
When minimal energy is required, like that required to power a small appliance, a single PV solar panel is sufficient. When more power is needed, an "array" of solar panels is created by attaching panels to one another. If the power would not be provided to the power grid, the solar panel(s) is connected to a charge controller, and battery. If it is intended for on-grid use, the solar panel array will be connected to an electrical inverter.
What Is PV Solar Power?
Typical silicon solar panels transform almost fourteen to seventeen percent of sunlight into usable electricity. That isn't much. Late in 2006, however, a new solar cell was launched. Solar panels that make use of the brand new cell could convert into electricity 22 percent of the sunlight they collect. Theoretically, the maximum that the cells of a solar panel can convert is claimed to be roughly 26 to 27 percent of incoming sunshine.
How does it work? Let's look at a very simple explanation.
Each photovoltaic cell in a PV solar panel is a semiconductor. When rays from the sun hits these cells, a specific part of the sunshine is absorbed by those silicon cells. The cells take in that part of the sunlight's energy. The cells then transfer the absorbed sunlight's energy to the electrons in the silicon. The electrons begin to circulate, and this produces an electric current. Metal contacts built into the top and bottom of the PV cells draw off that current and it is sent to the grid or battery. It is now usable electricity. The power grid sends it on its way, when you have used an on-grid connection. In case you are using a battery, it's saved in the battery awaiting your need.
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