That's actually kind of a "cool" idea. Likely reduce bills significantly with some kind of external HVAC connection, like your dryer, that pulls in cold air from a shaded overhang on the side away from solar input (or maybe underground).
This paper [1] has some discussion of testing differences between 16 C, 25 C, and 31 C ambient exhaust conditions. It's actually a fairly significant difference under testing. ~(0.35, 0.70, 1.05) kWh / 24h for (16 degC, 25 degC, 31 degC). Refrigerators in experiments were kept at ~ 5 degC (approx 600 tests).
That sounds either really difficult to make and maintain or an absolutely fridge industry destroying innovation. Given weather and stuff I fear the first. Sick idea tho. I know nothing of fridge engineering besides basics so could be way off.
