Not the Refrigerator or Water Heater! Top 10 Most Power-Hungry Home Appliances, with the #1 Electricity Guzzler Running Almost Nonstop

With record-breaking summer heat and the introduction of seasonal electricity pricing, household electricity bills are reaching their annual peak. To protect their wallets, identifying hidden energy drains has become a top concern for families. As the new energy era arrives, many homes now have 7kW+ electric vehicle (EV) charging stations—the ultimate power-hungry appliance—intensifying the battle for energy efficiency.

Among the countless household appliances, which one is silently draining consumers' finances? Network Temperature DailyView used its proprietary big data analytics tool, KEYPO, to analyze online discussions from July 20, 2025, to July 19, 2026, to identify the top 10 'electricity monsters' in homes. This report not only ranks the biggest energy culprits but also integrates official energy-saving guidelines from Taipower to help households save power effectively during the scorching summer.

No. 10: Rice Cookers and Rapid Cookers

Rice cookers, a kitchen staple, may seem harmless, but their heating power of 600W to 1,400W is surprisingly high. However, the real electricity traps are twofold: 'using a large pot for small portions' wastes energy, and the unnoticed 'automatic keep-warm function' silently consumes power. After cooking, the keep-warm mode uses about 40W. If left plugged in all day, this alone can waste nearly 1 kWh of electricity. While microcomputer rice cookers offer precise temperature control, their long cooking and extended sealed keep-warm cycles result in significant cumulative energy use.

This survey's peak discussion on rice cookers stemmed from a Threads user complaining that elders scolded them for boiling just 1–2 eggs in an electric pot, claiming it spiked their electricity bill to over NT$2,000. The post sparked debate: 'Boiling two eggs takes only 10 minutes—how much power could it use?' 'A Tatung rice cooker is 600W—just boil 20 eggs at once for better efficiency,' 'Boil ten eggs and refrigerate the rest,' 'Then convenience store tea eggs should cost NT$50 each!'

[Energy-Saving Tips] 1. Turn off and unplug rice cookers immediately after cooking to avoid prolonged keep-warm mode. 2. Use the 'quick-cook' mode on electronic rice cookers to shorten heating time; always cover rapid cookers to retain heat.

No. 9: Televisions and LCD Screens

While TVs and screens don’t generate instant heat, their electricity traps lie in 'larger screens consume more power' and the often-overlooked 'peripheral standby power.' Modern smart TVs remain in low-power networked standby mode even when turned off, enabling instant-on functionality. Even more alarming is the cable set-top box, which often continues drawing up to 10W of power after shutdown. Running 24/7, it can silently consume nearly 90 kWh annually—an undeniable 'invisible vampire.'

On PTT forums, a user asked, 'Does doubling TV size double power usage?' prompting widespread confirmation: 'A 55-inch LED used to draw ~200W ten years ago, but now a 75-inch Mini LED uses ~450W,' 'Yes, they’re power-hungry—entire panels emit light, so larger means more consumption,' 'TVs also require chip computing; all these high-tech features come at an energy cost.'

[Energy-Saving Tips] 1. Plug TVs, set-top boxes, and speakers into a switched power strip to cut all power at once when not in use. 2. Press the panel power button when leaving temporarily—more effective than just turning the screen black or enabling screensavers.

No. 8: Electric Water Heaters

Electric water heaters consistently rank among the top power consumers. While most focus on instant-type models with peak power up to 10,000W, the 'standby energy trap' of storage-type heaters is often overlooked. Storage heaters maintain water temperature by repeatedly cycling through 'heat loss → reheat,' consuming significant wasted electricity daily—making them true electricity black holes.

Especially during seasonal changes or upon receiving shocking bills, electric water heaters dominate 'complaint zones' on forums. Users share: 'I only turn on the main switch when showering and turn it off afterward—saves a lot!' 'No electric water heater is energy-efficient; they’re all power-hungry,' 'If you care about electricity bills, the only solution is switching to a heat pump water heater. Conventional electric heating rods can’t save power.'

[Energy-Saving Tips] 1. Install a timer on storage heaters to power on one hour before showering and auto-shutdown before bedtime, avoiding 10+ hours of ineffective heating. 2. For instant heaters, adjust temperature seasonally—lower summer settings (e.g., from 5 to 1) and use water-saving showerheads to reduce flow and heating load.

No. 7: Electric Fans

Often seen as 'energy-saving angels' among large appliances, fans’ power consumption depends on motor technology and usage logic. Traditional AC fans use 50W–80W, while new DC inverter fans use only 20W–30W—over half the power. Additionally, evaporative coolers, with their water pumps, consume 2–3 times more than regular fans. Using them with AC in humid Taiwanese summers increases indoor humidity, forcing AC to run longer for dehumidification—creating a double power drain.

Yet, when used wisely, these 'angels' become power-saving allies. Users share pairing tips: 'AC at 27°C + circulation fan feels cooler than 24°C before, and electricity bills dropped,' 'One circulation fan moves cold air evenly—comfortably cool,' 'Always pair AC with a fan for better cooling.'

[Energy-Saving Tips] 1. Upgrade to DC inverter fans; position circulation fans opposite the AC, blowing toward the room center or 45° upward to distribute cool air and reduce compressor runtime. 2. Clean fan blades and intake grills regularly to prevent dust buildup and motor strain. 3. Never use evaporative coolers in air-conditioned rooms; place them in well-ventilated semi-open spaces with ice for cooling.

No. 6: Electric Hot Water Pots and Water Dispensers

The energy impact of electric hot water pots and dispensers in kitchens has long been underestimated. People are often unaware of the low-power keep-warm function, but these appliances frequently reheat throughout the day, accumulating massive energy use. Taipower tests show a 10-liter water dispenser can consume 300–400 kWh annually in standby keep-warm mode—exceeding the yearly consumption of a new Grade 1 energy-efficient double-door refrigerator.

On social media, the 'kettle + thermos' combo is widely praised as the most energy-efficient way to get hot water. Users share: 'Water dispensers are expensive—just boil water in a pot or kettle and pour into a thermos,' 'Switched to an instant-heating purifier—electricity bills dropped,' 'Avoid auto-heating models—they’re invisible power sinks. Heat only what you need.'

[Energy-Saving Tips] - Switch to a 'kettle + thermos' combo: heat water briefly with a kettle only when needed, then store in a non-electric vacuum flask to completely eliminate 24/7 vampire power. 1. Use the energy-saving timer on hot water pots to auto-power off during sleep or absence. 2. Taipower recommends setting water temperature to 90°C instead of 98°C, saving ~25% on electricity.