What is Solar PV?

Solar photovoltaic electricity systems, commonly referred to as Solar PV, are innovative solutions that leverage solar cells to transform light energy from the sun into electricity. This clean and sustainable form of energy can power a wide array of household appliances and lighting fixtures, offering an eco - friendly alternative to traditional energy sources.

Solar PV systems are crafted by interconnecting multiple solar cells. These cells are carefully packaged together and protected by toughened safety glass, forming a robust solid panel or tile. These panels or tiles can be conveniently attached to rooftops or any other suitable location, making them adaptable for various residential and commercial settings.

The electricity generation process within solar cells is not only efficient but also completely safe. One of the remarkable features of Solar PV systems is that they do not rely solely on direct sunlight. Even on cloudy and overcast days, they can still generate a significant amount of electricity, ensuring a consistent power supply.

Fascinating Facts about Solar PV

• Cost - effective and Clean: Solar electricity is equivalent to your regular mains supply. However, since it is harnessed from the sun, it is free, clean, silent, and an inexhaustible energy source.
• Low - maintenance: Solar PV panels require minimal cleaning and are virtually maintenance - free. This makes them a hassle - free investment for homeowners and businesses alike.
• Cold - resistant and Efficient: Solar PV cells are not negatively affected by cold temperatures. In fact, similar to other electronic devices, they operate more effectively in cooler conditions, enhancing their overall performance.

How Does it Work?

During the day, daylight bathes the PV panels mounted on the roof. As sunlight hits the panels, the solar cells within them start the electricity generation process. The initial output is in the form of direct current (DC).

To make this electricity usable for most household appliances, which typically run on alternating current (AC), an inverter is employed. The inverter, usually installed in the loft space, garage, or a store cupboard in the house, converts the DC electricity generated by the panels into AC electricity.

The inverter is then connected to the distribution or fuse - board in the house. This connection allows the generated electricity to be seamlessly integrated into the home's electrical system, powering appliances such as refrigerators, televisions, and lights.

In cases where the Solar PV system generates more electricity than the household can consume, the excess electricity is sold back to the grid. On average, each 1 KW of PV installed on a house can produce approximately 800 KWh (units) of electricity per year. Homeowners are compensated for every kWh of electricity their system produces, regardless of whether it is used within the home or exported to the national grid.