Thermodynamic magic enables cooling without energy consumption. Physicists have developed an amazingly simple device that allows heat to flow temporarily from a cold to a warm object without an external power supply. Intriguingly, the process initially appears to contradict the fundamental laws of physics. Source 3x.
Despite it being early in development and still needs more efficiency, that's a great step! It would be nice that the reverse effect can also be applied, but for now that's not how science works. It would help a lot of certain areas without power to have a free source of cooling for storage.