Ever wonder how much your refrigerator contributes to energy consumption in the house? This particular household appliance is used every day with the power always turned on to preserve food and keep it cool. Most units also feature a built-in freezer box to freeze food. Your “how many watts does a refrigerator use?” question will be answered in this article. Read on to find out!
FYI, modern fridges are way more energy efficient compared to their older counterparts manufactured decades ago. Old commercial and domestic fridges consume way more energy. Depending on the size, a refrigerator will use anywhere from 100 to 400 watts. In most cases, domestic fridges typically contribute 100 to 200 watts to the power consumption. Refrigerators are likely to use around one to two kilowatt-hours or kWh over a full day. If it’s large, it will use about 180 watts or 1575 kWh per year. So there you have it, folks! Your ‘how many watts does a refrigerator use’ conundrum has been answered.
However, it should be noted that this calculation does not take into account the compressor cycles and other aspects which can decrease or even increase the power usage drastically. In order to achieve an accurate result, you’ll need to know an average running wattage of the refrigerator. You will get a pretty inflated result if you input the rated wattage. You can find the annual or daily kWh rating to determine the actual running wattage. Use it as the baseline for the calculation. For instance, the annual kWh rating amounts to 875 kWh and it should be divided by 365 days. This will give you 2.4 kWh/day which translates to the 100 watts for the average wattage (already accounts all factors).
Here are the factors that affect the energy consumption of your refrigerator:
- Location: if your fridge is placed in a warm location such as being placed next to an oven or situated in a poorly ventilated room, the compressor will work harder to keep things cool
- Size: bigger refrigerators will typically use more electricity
- Usage: another thing that can make the compressor to work harder is when the door of the refrigerator is opened frequently or being held open. Moreover, did you know that an empty fridge actually works harder than fully stocked one? It’s because more ‘cool’ air is replaced with warmer one every time you open the door
- Age: yup, the older the fridge, the less energy efficient it usually is
- Temperature set point: the factory setting usually keeps the fridge cooler than is needed in your house. The temperature must be between 3 and 5 degree Celsius to store food safely.
- Condition: the productivity of your fridge will decrease if the seals around the door are worn out
If at to this point, you still have ‘how many watts does a refrigerator use in my house’ question stuck in your head, you can calculate on your own and find out the energy consumption your refrigerator uses here.