The Repps chose to install solar on their roof because of the long term energy and financial savings it would offer them.  They were also interested in the sustainability concerns of getting their electricity from coal - now their system saves on average 1,400 lbs of coal from being burned to produce the electricity for their home each month. For this family, the best part of the system is the financial savings on electricity they are getting each month.  Now, instead of paying the electricity bill, their monthly savings are going straight into their daughter's college fund.