The history of solar energy dates back to the beginning, when individual scientists and inventors first started developing the technology. By the late 20th century, the aerospace and defense industries started recognizing its potential. Despite the various advantages of solar energy, it still remains a costly alternative to fossil fuels. The solar industry has come of age. In the 21st century, it is becoming a mature technology that is replacing the traditional sources of energy such as oil, natural gas, and coal. This timeline shows some of the major events that happened during this time. https://www.gildshire.com/the-history-of-solar-panels/