A crash course in changing the world.
Here's a brainstormed listed of definite potential sources of energy:
Tires that generate energy through kinetic energy. Dozens of Watts of energy are generated just from the friction between a car tire and a road per second of contact, that's energy wasted that could be converted for use to power the car alone.
Wallpaper that absorb noise and body heat. If rooms could be outfitted with wall paper engineered to convert audio waves into viable energy or body heat/thermal energy into usable energy, entire cities could be powered and houses made self-sufficient.
A computer mouse that absords body heat and converts friction from rolling on a mouse pad into usable energy to power the mouse, computer, etc..
Trash receptacles that use food waste as a fuellant. Would probably require biotech engineered innovation, a biodigestor type system.