Vawt Wind Generator

We are said to make a chemistry model and I'm planning to make a wind turbine which converts wind energy into electrical energy
Our teacher said that we can choose this topic but said to make it somehow a little related to chemistry
I'm planning to make a Vertical Axis Wind Turbine ( VAWT )
I will be making the model from these site addresses in which the instructions are given :

http://www.re-energy.ca/t-i_windbuild-1.shtml

http://www.re-energy.ca/pdf/wind-turbine.pdf

It is a simple model in which when the turbine moves ( the big plastic thing in the middle of the Generator in the picture ), the movement is converted to electrical energy which lights up the LED light

Please tell anything which i can add to my model so that it relates to chemistry somehow
even suggestions of putting some chemical substances on the turbine to move it smoothly or some other topic on chemistry with references or anything relating to that will be appreciated