About Solar Energy

As solar technology is pushing the 25% efficiency mark and the costs in this sector are set to lower each year, solar energy is solidifying its global position as one of the fastest-growing renewable energy sources. That is why more and more companies chose to become prosumers and harness solar energy to cut their electricity bills.

HOW IT WORKS

Solar light to electrons

Solar panels consist of numerous smaller units – photovoltaic cells. When sunlight reaches the cells, electrons in the solar panel begin to move, generating a direct electrical current (DC). Wiring between the cells combines the electrical current into one.

Converting Direct Current (DC) to Alternating Current (AC)

The initially generated direct current (DC) is not suitable to power most electric appliances and needs to be converted into an alternating current (AC). To create usable electricity, the solar power first travels to the inverter, where it is converted from direct current (DC) to alternating current (AC).

Consuming produced electricity or selling it to the grid

When solar electricity is converted to alternating current, it is ready to be used by the solar system owner. If the solar panels create more electricity than is needed, it can be sent back to the grid. Usually, PV owners will receive credit for this extra energy that can be used on a future bill, which ensures all-round reduction in electricity cost.

Types of PV systems

There are four main types of solar power plants based on their installation properties:

Myths & facts

1. Solar cells require a lot of maintenance  

As solar cells have no moving parts, they are extremely durable and require little maintenance compared to other energy generators.  

2. Solar cells cannot withstand cold winters 

If solar cells are not covered with snow, they may function even better in winter as their efficiency increases in lower temperatures. 

3. Solar panels are fragile and break easily 

Solar panels can withstand heavy rains, winds, hailstorms, and other kinds of strong physical impact while remaining completely intact. 

4. Solar panels have low return on investment 

The usual ROI on solar projects is 10% – 15% which rivals most of the other types of investments in the market. 

5. Solar cells are inefficient 

Current solar cells have an efficiency rate of 20 – 25% which is more than enough to generate profits. To put it into perspective, regular internal combustion engine cars have fuel efficiency that varies from 15 to 25%.   

6. Solar panels require more energy and CO2 to manufacture than they can offset 

Within 4 to 7 years, solar panels offset their carbon and energy footprint leaving them with at least 18 years of environmentally neutral operation.