Designer: How can we save energy by redesigning the fridge?
Engineer: Well, you could save a lot of energy if the expansion coil weren't warming up your air-conditioned interior. We could run piping from the fridge to a box outside, like a window-unit air conditioner.
Designer: No one is going to run pipes out of their kitchen... Oh! Lets put the whole fridge outside! No ugly pipes, and then it would be in the sun! Solar power!
Engineer: ... Do you even know how much energy a fridge uses compared to cheap flexible solar paneling? How are we going to insulate it from the 95 deg direct sun in the summer? How do we keep seals from freezing in the winter? What about all the energy you lose every time you open a window from a climate controlled room to the outside?
Designer: And LED's!
Engineer: ...
Designer: It's like every unit sold is an advertisement for us!
Engineer: I need a beer and an escape slide.