Wednesday 28 October 2015

An Overview of Photo-Voltaic Cells

Just as green plants convert sun light energy into chemical energy by photosynthesis, similarly Solar Photo-Voltaic (PV) Panels absorbs sun rays and transform it into electrical energy. This free electricity harvesting can help you cut short excess electricity cost.

What actually these solar grids are?

These are drafted out of thin layer of semiconducting material placed in between glass and a polymer resin. When this typical sandwiched material comes in contact with sun rays, they absorb the same, become energized and simultaneously convert it into consumable electric power.

Types of Solar PV Panels

There are four basic types of PV panel:

•    Monocrystalline: More efficient than its contemporary polycrystalline
•    Polycrystalline: (or multicrystalline):  Though it comes with less efficiency but they are also a bit cheaper.
•    Hybrid: Most efficient and thus it is costlier.
•    Amorphous silicon: This type is gaining popularity due to efficiency.

All are made from silicon, but differ in the way the silicon is cut and treated and also varies in their energy generation efficiency (how much sun energy is absorbed per unit area of the panel) and price.


Spare parts of Photo Voltaic Panel:

Inverter: Electricity produced in this Photo Voltaic cells are Direct current (DC). An inverter convert it to the dwelling convertible Alternating Current (AC)

Solar panel: More the panel or grid more is the surface area of sun ray absorption and thus more energy generation.

Isolator switch: Safety switch, placed beside inverter

PV generation meter:  Helps to keep a watch on how much energy is being generated or the amount of electricity exposed to the grid. In this way you can determine the amount to electricity evolving on cash return.

Cables: Export of extra power

How to choose from them?

Cost per energy output: While choosing Photo Voltaic panels check the cost per watt of energy generation. Expensive is the panel more is the energy generation efficiency.

Roof square area: Before landing on an expensive panel does check the area coverage of your roof, because it is at the roof where your solar panel will be placed. However, if space is limited, you would probably want to maximize efficiency to get more power out of your few panels.

So choose wisely and enjoy unlimited power returns on a affordable investments. You can be sure to save a huge amount wasted every year for your kitchen fuel. You will be amazed to see the amount you will save per year.

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