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Just What Is PV Solar Power?
PV solar power is totally different from other types. Of the 2 principal categories of solar power, active and passive, PV solar power is active. Let's look at it.
Solar Panel
Active solar energy depends on solar panels. You could imagine them as flat, rectangular boxes on rooftops.
You can find two main types of solar panel. From a distance, both appear like rectangular boxes. Both convert sunlight into energy, but in two totally different ways. The terms for the 2 solar panel kinds are actually solar thermal collector as well as photovoltaic module.
1. Solar thermal collector: This solar panel takes in solar power from the sun and uses it to heat air or water.
2. Photovoltaic module: This second kind of solar panel collects solar power and converts it to usable electrical power.
Meet the PV
To respond to the question, what's PV solar energy, we must know what the PV is. The short answer is that PV refers to a photovoltaic module. "P" is actually for photo and "V" for voltaic.
In simple words, "photo" pertains to rays from the sun and "voltaic" pertains to electrical power. PV panels convert sunlight into electrical energy. Sunlight flows into the solar panel. Electric power flows out of the solar panel.
A PV solar panel is actually made up of a lot of photovoltaic (light to volts) cells. These particular cells are electrically linked, and then covered with glass. The glass provides electrical insulation. It is also good protection from weather conditions and different destructive forces.
When minimal power is required, like that necessary to power a small appliance, a single PV solar panel is sufficient. When much more energy is required, an "array" of solar panels is built by linking panels to one another. If the power would not be supplied 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 would be linked to an electrical inverter.
What Is PV Solar Energy?
Typical silicon solar panels transform almost 14 to 17 percent of sunlight into usable electricity. That isn't much. Late in 2006, though, a brand new photo voltaic cell was launched. Solar panels that make use of the brand new cell can convert into electricity 22 percent of the daylight they gather. Theoretically, the most that the cells of a solar panel could convert is alleged to be roughly 26 to 27 percent of incoming sunlight.
How does it work? Let's look at a very simple explanation.
Every solar cell in a PV photo voltaic panel is a semiconductor. When rays from the sun hits these cells, a specific part of the sunlight is absorbed by those silicon cells. The cells take in that part of the sunlight's energy. The cells then transfer the absorbed daylight's power to the electrons within the silicon. The electrons start to move, and this produces an electrical current. Metal contacts built into the top and bottom of the PV cells draw off that current and it is dispatched to the grid or battery. It's now usable electrical energy. The power grid sends it on its way, when you have used an on-grid connection. If you're using a battery, it's stored in the battery awaiting your need.
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