In my city, majority of the buildings would have solar panels. Solar electricity is  a green renewable type of energy that doesn't release any carbon dioxide or other harmful pollutants. But besides saving the earth, an incentive for most people would be that after the installation process, in the United states it is estimated that solar panels will save you 35,000 dollars after 20 years.

Solar panels are expensive for installation. However it will save you more money after it's installed. Solar panels are really effective and efficient for saving energy. If you want to know more about the pros and cons of solar panels check this website http://www.clean-energy-ideas.com/solar … lar-energy

Since the world today sadly runs on how much money you can make in the short term, lots of people do not need solar panels because of low energy bills or because they may not sustain ownership of the property or they may not want to pay for installation. Furthermore, even if energy prices were to rise due to shortage of energy sources that release carbon dioxide and other harmful gasses, the intensity of inflation to make everyday people consider this option would occur long past the  death of most lifeforms of our planet (including humans) if the consumption rates would sustain constant growth at the rate they are.

I agree with Julian.  I don't believe that the fact that solar panels help to save money long term would convince more than a very small percentage of people, mostly very wealthy people, to make the change and install panels.  Many people don't have the money upfront and would not want to invest what they do have or take out a loan, particularly because the economic standing of most individuals in the US are very unpredictable these days, so the probability of solar panels having widespread success in becoming a larger provider for energy is quite low.