Energy is something we all take for granted. Hot and cold water at our fingertips, heat and air conditioning when its too cold and too hot, and when it gets dark outside, just flip on the light. But where does it come from? Energy supply for your house differs greatly from supplying 5,300 acres and the 1,200 buildings that make up the UC Davis campus. With such a large campus our energy costs and usage is complicated but our energy supply is more straightforward, coming from a combination of gas and electricity.