The advantages are that solar energy doesn't need to use fossil fuels which has a limited amount.

What are the advantages of solar energy over electricity generated by a traditional power plant run by fossil fuels

http://www.engineering.com/SustainableEngineering/RenewableEnergyEngineering/SolarEnergyEngineering/WhySolarEnergy/tabid/389
3/Default.aspx

- solar just needs the sun

http://files.cdn.ecowatch.com/wp-content/uploads/2013/09/solarphoto.jpg

http://advantagesanddisadvantagessolarenergy.com/wp-content/uploads/2012/03/Sola
r-Energy-Saving.jpg