Hmmm... I can fore see a problem with this. You're are asking that (probably) multiple people bleed into a container for power... Can you say "Big risk of spreading disease?"
What an idiotic thing... "What if, every time you wanted to switch on a light, you had to bleed? Would you think twice before illuminating the room, and in turn, using up energy?"
Energy is cheap, and, for the most part is very clean and efficient to produce. This is just another wacko who thinks humanity shouldn't exist because we're pillaging the planet. Well you know what I say to him? FU! You and everyone who thinks like you can go somewhere else and live like you think we should! But stop trying to force me to, too! I won't put up with it!
On the other hand, Emo people will probably like this.