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Appliance Villains — Find Out Which Consume the Most Energy and Check Tips on How to Reduce Expenses and Avoid Surprises on Your Electricity Bill

Published on 31/03/2025 at 12:34
Conta de luz, energia, economia de energia, Eletrodomésticos
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Learn About 5 Appliances That Increase Your Electricity Bill. See Tips to Save Energy and Avoid Surprises at the End of the Month

With the rising cost of electricity, every detail can make a difference when it comes to saving. Many consumers already suspect appliances like refrigerators, air fryers, and washing machines. But what few notice is that everyday habits also directly influence the electricity bill.

Below, see a list of five appliances and situations that contribute to increased energy consumption. Also understand what can be done to mitigate this impact and improve energy efficiency at home.

1. Faulty Appliances

Appliances with defects may seem harmless, but they are major contributors to increased consumption. One example is the refrigerator. If the gasket is worn out, the motor will be forced to run longer, as external heat easily enters.

The same happens with thermostat problems, which prevent proper cooling and make the equipment run longer.

Another clear example is the washing machine. When it has issues with the motor or electrical system, it may repeat processes, like spinning multiple times, or prolong cycles, leading to higher energy usage. Small defects accumulate consumption over time, often going unnoticed.

2. Old Appliances Consume More Energy

That old appliance may be sturdy, but it is likely pulling more energy than necessary. Older appliances typically lack modern energy-saving technologies.

This includes inverter technology, now found in various models of refrigerators and washing machines, which better regulates energy usage.

This type of technology first emerged in air conditioners and helps to avoid consumption spikes. The system works by adjusting the flow of energy according to need, ensuring greater efficiency.

Even though they are more expensive, models with this technology represent long-term savings. Additionally, since the Procel label was created, consumers have access to product efficiency ratings. Models with an A label are the most recommended for consuming less energy.

3. Appliances Being Misused

How we use appliances also influences consumption. Many people overfill the refrigerator, washing machine, or even the air fryer. This causes the appliance to work harder than it should, often requiring more energy and not delivering the expected results.

Another common mistake is frequently opening and closing the doors of refrigerators or ovens. These appliances need to maintain a stable internal temperature. Heat exchange with the external environment disrupts this balance and forces the equipment to use more energy to compensate for the loss.

A simple solution for ovens is to opt for models with glass doors. This way, you can monitor the cooking process without having to open and lose heat. Small habit changes can make a big difference.

4. Appliances That Consume More During Peak Hours

In some regions, the price of energy varies throughout the day. The so-called peak hours, usually between 6 PM and 9 PM, are the most expensive, as demand is higher.

Avoiding the use of appliances during this window can help reduce costs. The tip is to schedule the use of dishwashers and washing machines for alternative times, like in the morning or late at night.

Check if your region has this tariff variation. A simple rearrangement of your routine can help lower your bill at the end of the month.

5. Appliances on Standby Still Impact Your Electricity Bill

Even when turned off, some appliances continue to consume energy. This occurs when they remain plugged in. Microwaves, TVs, fans, chargers, and audio equipment are common examples.

This “invisible” consumption can account for up to 15% more on the bill, according to Agência Minas. The standby mode, while convenient, can be a silent villain.

Assessing which appliances really need to stay connected can lead to savings. Unplugging those that aren’t used frequently is a simple yet effective measure.

Saving energy doesn’t just depend on replacing old appliances or avoiding use during peak hours. Details make a difference. From fixing defects to changing simple habits, such as unplugging what isn’t in use.

And most importantly: pay attention to the signs your electricity bill gives. Sometimes, the problem is inside your house — and can be resolved with simple actions.

With information from Tech Tudo.

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Romário Pereira de Carvalho

Já publiquei milhares de matérias em portais reconhecidos, sempre com foco em conteúdo informativo, direto e com valor para o leitor. Fique à vontade para enviar sugestões ou perguntas

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