What if we can change all movement as energy?
There is possibility making energy with every single foot step with Piezoelectric element. Nowadays, scientists keep researching on it. In future, I hope that from infant's footstep to elder's one all the movements make energy and that replace nuclear energy which is sometimes dangerous.

I didn't calculate AC to DC transfer loss rate.
That is approximately 30% so, one step 1.62 * 0.7 = 1.134 W
Project in 2014 1/4~2/4