Nowadays, due to the shortage of energy, the use of green technology from renewable resources such as wind, sun and water is becoming more and more important and urgent.Among these green energy resources, energy from the sun or so-called solar energy is considered to be the most available one.First and foremost, solar energy comes directly from the sun which is an abundant source of renewable energy.Besides that, thanks to its natural source, this type of energy is environmentally friendly and does not cause pollution.However, the implementation of solar energy consumption has its own drawbacks.First, it costs lots of money to operate.Secondly, though the sun is available everywhere, the access to sunlight is limited at certain times, such as on rainy days or in the evenings.In conclusion, there is no known energy that is totally safe and perfect to use.