A solar cell, also known as a photovoltaic cell, is a device that directly converts sunlight into electricity using the properties of semiconductors such as silicon. When sunlight strikes the surface of a solar panel, photons excite electrons within the semiconductor, causing them to move and generate an electric current. This electricity can then be used to power homes, businesses, and various devices. Solar cell technology is increasingly recognized as a key solution for clean and sustainable energy worldwide.

Today, the trend of installing solar panels is no longer distant or unfamiliar. Many households are looking for ways to reduce electricity costs in the long run, and one of the most popular options is installing a Solar Rooftop system. However, before making the decision, there are several key points to understand to ensure that the investment is both worthwhile and safe.

The Beginning of Solar Cells Solar cells, also known as photovoltaic cells, originated from the discovery of the photovoltaic effect in 1839 by the French physicist Alexandre Edmond Becquerel. He found that when light fell on electrodes in an acidic solution, it generated an electric current. This discovery marked the first step toward harnessing sunlight for electricity (solarhub.co.th ).

Many people still see solar panels merely as devices to reduce electricity bills. In reality, installing solar panels on rooftops—whether for households or businesses—is a long-term investment with diverse dimensions, spanning economics, the environment, and energy security.

When discussing “the energy of the future,” many may think of nuclear power, hydrogen-powered vehicles, or massive wind turbines. In reality, however, the simplest energy source — sunlight — is emerging as the true game-changer.