A cheap alternative to a refrigerator that doesn't consume much energy but can keep things cool is a cooler or an insulated box. Here are a few options to consider:
Cooler with Ice Packs: A traditional cooler, commonly used for picnics or camping, can keep food and beverages cool for several hours. You can use reusable ice packs or frozen water bottles to maintain the temperature.
Thermoelectric Cooler: Thermoelectric coolers are portable and use a thermoelectric module to cool the contents. They are more energy-efficient than traditional refrigerators but may not provide as low temperatures.
Root Cellar or Underground Storage: If you have space and access to a cool underground area, like a basement or cellar, you can store certain fruits, vegetables, and beverages in it. Underground storage can maintain a relatively cool temperature.
Zeer Pot or Pot-in-Pot Cooler: A Zeer pot is an inexpensive, DIY cooling solution used in some regions with hot climates. It consists of placing a smaller clay pot inside a larger one, with wet sand in between. As the water evaporates, it cools the inner pot, helping to keep the contents cool.
Insulated Box with Ice: Simply using a well-insulated box or container and filling it with ice can also provide a cooling effect, especially if it's kept in a shady spot.
Keep in mind that these alternatives may not offer the same level of cooling and temperature control as a proper refrigerator. They are best suited for short-term cooling needs and may require more frequent maintenance (e.g., replenishing ice or wet sand). If you need a more reliable and long-term cooling solution, it's advisable to invest in an energy-efficient refrigerator or consider purchasing a second-hand one, which might be more budget-friendly than brand new models.