In recent years, people are paying more attention to optimal use of resources around the world. Solar energy, as one of most important renewable energy sources, is among the most popular types of energy among both citizens and governments. The primary reason why solar energy is becoming so popular is because it is clean and renewable. Unlike other sources of energy that need to be constantly refueled or replaced, solar energy comes from the sun and is continually replenished. Because of this, solar energy is considered to be inexhaustible. Moreover, solar energy does not involve the use of any fossil fuels, which are largely responsible for air pollution. In addition, solar energy is extremely economical. Once the initial cost of installing the solar panels is taken care of, there are minimal costs associated with using solar energy. Moreover, it is not only the consumer who benefits heavily from the use of solar energy; the environment does as well. Since solar energy does not involve the usage of any fuel or other resources, it does not generate any emissions which may be hazardous to the environment. Finally, solar energy has proven to be very reliable. Unlike other sources of energy that may be affected by factors such as weather or conflicts, the sun is a consistent and dependable source of energy. Therefore, solar energy can provide people with a steady and reliable supply of energy. Overall, solar energy is becoming popular due to its clean and renewable status, low cost, and consistent reliability. In the years to come, we can expect to see solar energy become increasingly accessible to people all over the world.