Induction Cooktops
Energy-guzzling Appliances: A Costly Affair
Induction cooktops are gaining popularity in Vietnam, especially in modern urban households. While this technology offers unparalleled safety and significantly reduces cooking time thanks to its rapid heat conduction, it comes at a cost. A double induction cooktop can consume up to 190 kWh of electricity per month if used for 3 hours daily. Mr. Khoa emphasizes, “While induction cooking offers speed and convenience, users should be mindful of the associated electricity costs.”
Rice Cookers
Rice cookers themselves don’t consume excessive electricity, but the way they are used can make them electricity guzzlers. Many people plug in their rice cookers hours in advance and leave them on even after the rice is cooked, sometimes for several hours. This practice is extremely wasteful as a typical 1.2-liter rice cooker has a power rating of 350-400W, and if left on for two hours, it will consume approximately 0.75 kWh of electricity.
Water Heaters
Water heaters are essential during winter, but their usage may be unnecessary in the summer. Many Vietnamese households have started installing rooftop solar water heaters, which provide sufficiently warm water during the day without any additional electricity costs. Mr. Khoa explains, “A conventional water heater can consume 230 to 340 kWh of electricity per month if left on continuously. During summer, you may not need to keep the water heater on for long periods, especially if you’re drawing water from a rooftop solar heater.” He suggests checking the water temperature before deciding to switch on the water heater to avoid unnecessary electricity consumption.
Desktop Computers
Desktop computers are prevalent in households, but they also contribute significantly to electricity consumption. Mr. Khoa notes, “High-performance PCs can consume up to 75 kWh of electricity per month, and this figure can be much higher if the computer is left on but unused for extended periods.”
Clothes Dryers
Clothes dryers are gaining popularity, especially in northern provinces during the rainy season. Mr. Khoa points out, “An 8 kg dryer can consume 75 to 140 kWh of electricity per month. However, in areas with ample sunshine, using a dryer may be unnecessary and wasteful.” He suggests that users carefully consider their options and avoid over-reliance on dryers during dry weather.
Televisions
Contrary to popular belief, televisions can contribute significantly to electricity costs. A 32-inch TV with a power rating of 40W may not seem like much, but if left on continuously, it can result in substantial electricity charges. Additionally, even when turned off but still plugged in, a TV can add approximately 500,000 VND to your annual electricity bill.
