Most of the world's solar cells are installed in the wrong direction

Solar energy is considered the cleanest, endless and safest energy source today, favored and used by many families. But how to install and use this energy source to be the most effective is still a lot of people do not understand, leading to waste and not fully utilize energy.

The common concept in the northern hemisphere is to direct solar panels to the south so that they are most exposed to daylight. Architects and technicians always adhere to this principle, especially in the installation of equipment for households.

However, a new study by Pecan Street Institute (USA) revealed that the solar panels toward the west actually get more energy from the sun.

In the northern hemisphere, west-facing solar panels will gain more energy than today's popular southern installation, according to new research.(Photo: Corbis)

Researchers found that households in Austin, Texas (USA) installing solar panels on the west side could produce more electricity each day. They also get more energy thanks to equipment in the afternoon, when the electricity grid must meet the peak demand.

Although the increase in energy production in the afternoon is very small, only 2%, but experts say it will certainly be significant for many years. Moreover, the reduction depends on the grid to 65% during peak hours thanks to the direction of the solar battery to the west, instead of 54% as the direction of the device to the south, can increase the efficiency of solar cells. in households.

Solar panels consist of many photovoltaic (PV) cells arranged on a semiconductor material, usually silicon. When light shines on PV cells, it creates an electric field across the battery. The heavier the sun, the more electricity produced.

In the UK, an average solar cell system has a capacity of 3.5 - 4 kWp and costs about 8,000 - 15,000 USD. It is estimated that a 4kWh power system is capable of producing nearly 3,700 kilowatt-hours (kwh) of electricity a year, roughly equal to the average demand of a household.

Eliminate all obstacles preventing sunlight from reaching the solar panels.

How to install solar batteries:

1. Solar panels are usually installed on rooftops, building independent stations, glass columns and walls . It is important to allow the panels to receive as much solar energy as possible in all conditions. about environment, space and time.Ensure the system always receives solar energy with maximum efficiency throughout the year.
2. The solar array has the maximum capacity when placed perpendicular to direct sunlight under the sun at summer noon.Eliminate all obstacles preventing sunlight from reaching solar panels: trees, high-rise buildings . Users need to track the sun's path in the sky to locate and Optimal direction for placement of the panels.Otherwise your solar battery will be significantly reduced.
3. Users should periodically take care of the solar panels every month by cleaning the layers of dirt that clings to the surface of the solar panel to keep the battery at the highest efficiency.