Can you save energy with your devices? Yes, and here's how.
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Saving energy has never been more important than in 2024.
With rising energy costs and the growing environmental impact of electricity consumption, adapting to more conscious practices when using electronic devices has become essential.
The good news is that you don't need to make big changes to see results. Small, informed actions can reduce your energy costs while helping preserve the environment.
In this text, we will explain how save energy with your devices in a practical way, based on recent studies and simple strategies.
Additionally, we'll dispel myths and highlight technologies that can further optimize the use of your devices.
1. Why is saving energy with your devices so relevant today?
Global household energy consumption grows every year.
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Data from International Energy Agency (IEA) show that electronic devices account for around 15% of residential energy consumption in 2023, with this expected to increase due to the greater integration of technology into our lives.
The environmental impact is also significant. According to the UN Emissions Report, approximately 40% of global CO₂ emissions are linked to electricity generation.
Choosing more efficient practices reduces your carbon footprint, helping to combat the climate crisis.
Additionally, saving energy with your devices can directly impact your budget.
Studies show that families who adopt conscious habits can save between 10% and 20% on their monthly electricity bill.
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2. Adjust power-saving settings for your devices
Often, the solution is at your fingertips. Changing your appliance settings is one of the simplest and most effective ways to reduce energy consumption.
Reduce screen brightness
Screen brightness on devices like smartphones, tablets, and laptops consumes a significant amount of power.
Using the automatic brightness option or adjusting it manually can reduce consumption by up to 30%, according to data from a 2023 Energy Star analysis.
Enable power saving mode
Most modern devices have a power-saving mode. This feature reduces processor and other resource usage, extending battery life and reducing power consumption.
Disable unnecessary notifications
Constant notifications require screen brightness and processing, consuming more power.
Disabling them for less relevant apps not only saves battery but also improves your concentration.
Close background apps
Open, unused apps continue to consume power. Make sure to close anything you're not using regularly.
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3. Turn off appliances and eliminate “phantom power”
Phantom power is the energy used by electronic devices when they are plugged in but not in use.
This includes devices on standby, such as TVs, video games, and chargers. Research shows that phantom power can account for up to 10% of a typical household's electricity bill.
How to reduce this waste?
- Use power strips with an off switch: They allow you to cut power to multiple devices at the same time.
- Unplug chargers after use: Plugged-in chargers continue to consume power even when the device is not connected.
- Invest in smart plugs: They automatically cut off the power supply when the device goes into standby mode.
These simple actions are effective in saving energy with your devices and, as a bonus, increase the lifespan of your devices.
4. Modernize your equipment for greater efficiency
Older appliances tend to consume more energy. Replacing these devices with more modern, efficient versions can generate significant savings over time.
Energy efficiency highlights
Models with certifications like Procel (Brazil) or Energy Star (USA) guarantee reduced consumption. See below for examples of savings achieved by efficient devices:
| Device | Average Consumption (Old) | Average Consumption (Modern) | Economy (%) |
|---|---|---|---|
| Refrigerator | 55 kWh/month | 35 kWh/month | 36% |
| Washing machine | 20 kWh/month | 15 kWh/month | 25% |
| Television | 12 kWh/month | 8 kWh/month | 33% |
In addition to direct savings, modern devices often have additional features, such as consumption monitoring and adjustable operating modes, which make use even more sustainable.
5. Embrace technology to your advantage
Smart devices and home automation aren't just modern conveniences; they also help you effectively save energy with your devices.
Home automation
- Smart thermostats: They automatically adjust the temperature based on your presence and routine. Studies indicate they can reduce heating and cooling costs by up to 15%.
- Smart lighting: Lamps that turn off automatically when no one is in the room avoid waste.
- Connected plugs: They allow you to monitor and control energy consumption from anywhere via smartphone.
Real-time management
Platforms like Google Nest and Alexa provide insights into energy consumption, allowing for more precise and personalized adjustments.
6. Myths and truths about energy saving
Even with so many options, some popular beliefs can be confusing. Here's what's true and what's myth:
- “Turning the TV off and on again consumes more energy”: Myth: Modern appliances consume less energy when turned off, even when turned on again after short periods.
- “Charging your cell phone at night increases consumption”: True, although the impact is small. Opting for shorter charging times is more efficient.
- “Using dark mode saves battery on all devices”: Partially true. The savings are only relevant for OLED or AMOLED displays, as dimmed pixels don't consume energy.
7. How much can you save by adopting these practices?
Savings depend on the number of devices and the time of use.
However, a study by Energy.gov estimates that by adopting all of the strategies listed, you can reduce your total residential energy consumption by between 15% and 25%.
Annual savings example
| Adopted Practice | Estimated Annual Savings |
|---|---|
| Brightness adjustment and notifications | R$ 150 |
| Reduction of phantom consumption | R$ 200 |
| Device update | R$ 300 |
| Automation and remote control | R$ 250 |
Conclusion: Do more with less energy
Saving energy with your devices doesn't have to be complicated.
By adjusting settings, unplugging unused devices, and investing in modern technology, you not only reduce your costs but also contribute to a more sustainable future.
As renowned environmentalist Bill McKibben said: “Small individual actions added together can move mountains.” Every conscious action in your home is part of this global transformation.
Adopt these practices today and see how the simple act of saving energy with your devices can transform your daily life and the world around you.
