This graph shows you some glaring changes and the demand for solar power. The article also offers some interesting incites into the industry that6 up till now have been plagued by large governments that are dependant on oil for all their funding. Now that the demand to get off the oil train, people and even governments are looking else where for answers and solar has put its hand up.
Have you put in a solar system at home? How have you saved?
Say what you want about it, but solar energy is becoming dirt cheap