In a number of scenarios, anyone with ice would have a highly tradeable commodity. Both to obtain goods and services; or to be a very good neighbour in a crisis (e.g., keep meds cool).

Keep in mind that not all refrigerator/freezer technologies require electricity. Long before CFCs, the original refrigerators/freezers used an ammonia cycle. This required only a controllable heat source. This method lives on in propane RV fridges, for example.