Air conditions and refrigerators are both devices meant to cool, but unfortunately in order to turn warm air into cool air, heat energy is inevitably lost in the process.  My solution to this would make these machines more costly, and might not really be a solution, but it’s all I could think of because there is no way to avoid losing energy. If the heat energy being released went through another cycle of cooling more heat energy would still be lost, but at least the amount of energy being lost would be less.  Yes’ it will take a lot of energy, but wouldn’t less heat energy be wasted? The amount of heat energy being lost at the start isn’t a lot, so the amount of energy needed to cool, wouldn’t really be a lot.