Here is a short but excellent video about energy consumption.
Click on image to be redirected to the site with the animation.
I don't speak Portuguese, but could grasp the message in this charming video by Buraco de Bala. It features original illustration style done up as an animation (on a white board?? Shazam. Look out UPS!) with a simple score. It's pleasingly designed/animated. My favorite part (hard to pick) was the type treatment of the title at the beginning.