What alternative energies can make the prices of food go down?

Question

I know that if you substitute alternative energies for oil then obviously that would go down but what kinds would make it go down? The only one i know of is wind mill.

Answer 1

Natural gas is a major component of nitrogen based fertilizers.  

Answer 2

We shouldn't have to worry about finding alternative energy sources for a while.  Iraq just discovered a HUGE oil reserve.  They now have more oil than Saudi Arabia.  The article is below.