Could mushrooms be used in any possible way as a source of energy? They're one of the few things that can grow near-anywhere (including underground) and rarely require maintenance (unless you're trying for incredibly potent shrooms) seeing as they live off of anything around them that can die.

I haven't done any research into it but could it be a way to get rid of our organic waste by using it to grow mushrooms that could be used for energy? Or if they're the right species, food.

I won't be disillusioned in the slightest if they can't but it was an idea I had over a year ago when people were arguing about ethanol.