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Do Smart Plugs Use a Lot of Electricity? A Comprehensive Guide

Stefan Dyulgerov
December 14, 2023

In the age of smart homes and energy conservation, smart plugs have emerged as a popular choice for homeowners looking to control and manage their electricity costs. But a common question lingers: do smart plugs use a lot of electricity themselves?

In this comprehensive guide, we will explore the ins and outs of smart plugs, their energy consumption, and their role in saving energy and money. We will also delve into topics such as the factors affecting electricity consumption, the importance of measuring energy usage accurately, and the environmental impact of using smart plugs. Along the way, we'll address common myths, discuss safety considerations, and explore the future of smart plug technology.

Introduction to Smart Plugs

What are smart plugs?

Smart plugs, often called smart outlets or Wi-Fi plugs, are ingenious devices that can be plugged into traditional electrical outlets.

These smart plugs are equipped with wireless connectivity, typically Wi-Fi or Zigbee, and are controlled through a smartphone app or a smart home hub like Hubitat. They offer remote control, monitoring, and automation of devices connected to them.

How do smart plugs work?

Smart plugs act as a bridge between your electrical outlet and the devices you wish to control.

By connecting to your home's Wi-Fi network, they enable you to remotely turn devices on or off, set schedules, and monitor energy usage. Whether through an app or voice commands with compatible devices like Google Home, smart plugs put the power of control in your hands.

Energy Consumption of Smart Plugs

Power ratings of smart plugs

Smart plugs come in various models and have different power ratings. Most have a standby power consumption of 1 to 5 watts when not actively controlling a device. This minimal standby power is used for maintaining the Wi-Fi connection and being ready to receive your commands.

Standby power consumption

Standby power, or phantom power, refers to the electricity consumed by devices when they are not actively in use but still connected to a power source. Smart plugs draw a small amount of standby power to stay connected to your Wi-Fi network and await your commands.

Active power usage

When controlling a device, smart plugs consume slightly more electricity, typically less than 1 watt. This additional power is necessary for the relay mechanism to turn devices on and off.

Factors Affecting Electricity Consumption

The electricity consumption of smart plugs depends on various factors.

Type of device connected

The energy consumption of a device connected to a smart plug significantly influences overall electricity usage. High-energy consumption devices like space heaters or air conditioners result in higher electricity consumption when controlled through smart plugs.

  • Usage patterns: Your usage patterns are vital in determining electricity costs. Frequent remote control, scheduling, and automation of devices lead to more substantial energy savings.
  • Smart plug efficiency: Not all smart plugs are created equal. The quality of smart plugs affects their efficiency. High-quality smart plugs are designed to minimize standby power consumption and operate efficiently.

Measuring Smart Plug Electricity Usage

Accurate measurement of electricity usage by smart plugs is essential for understanding their impact.

Using energy monitoring features

Many smart plugs come with built-in energy monitoring features. These features allow you to track the energy consumption of the device connected to the smart plug-in in real time, providing insights into how much energy your appliances use.

Third-party energy monitoring tools

In cases where your smart plug lacks built-in energy monitoring or if you want to monitor multiple devices from different manufacturers, third-party energy monitoring tools can be integrated into your smart home setup. These tools provide comprehensive insights into how much power your home is consuming.


Tips for accurate measurement

For the most precise measurement, ensure that your smart plug is properly installed and calibrated. Regularly check the energy monitoring data for any anomalies or irregularities. By comparing energy usage before and after using a smart plug, you can gauge its effectiveness.

Comparing Smart Plugs to Traditional Plugs

A key question is whether smart plugs save electricity compared to traditional plugs. Let's explore the factors that determine the energy savings offered by smart plugs.

How smart plugs can save electricity

Smart plugs offer numerous ways to save electricity:

  • Remote Control: Smart plugs allow you to turn off devices remotely, reducing standby power consumption.
  • Automation and Scheduling: Create schedules for devices to ensure they are powered on only when needed.
  • Energy Monitoring: Track how much energy is used to identify and reduce power-hungry devices.
  • Integration with Other Smart Home Appliances: Smart plugs can work with other smart devices to create efficient automation scenarios.

Cases where traditional plugs may be more efficient

While smart plugs are generally efficient, there are situations where conventional plugs may be more practical or energy-efficient. Devices that require continuous power, such as refrigerators or freezers, may not benefit from smart plugs.

Tips for Reducing Smart Plug Electricity Consumption

To maximize the energy-saving potential of smart plugs, consider the following tips:

  • Automation and Scheduling: Set up automation and schedules to ensure your devices are powered on only when needed. For example, you can schedule your lights to turn on and off at specific times or create automation rules that turn off your entertainment system when not in use.
  • Smart Plug Selection Based on Power Requirements: Choose smart plugs that match the power requirements of the devices you intend to control. Over-specifying a smart plug for a low-power device may result in it over consuming energy.
  • Integrating with Other Smart Home Devices Integrating your smart plugs with other smart home devices, such as motion sensors or door/window sensors, can enhance energy savings. Lights can be programmed to turn off automatically when no motion is detected in a room.

Real-Life Examples and Case Studies

Let's explore some real-life examples and case studies to see how users have successfully reduced their electricity usage with smart plugs:

Case Study 1: Reducing Standby Power Consumption

Sarah, a homeowner, tackled standby power consumption by connecting her entertainment system to smart plugs. By scheduling the smart plugs to turn off automatically during the night and when no one was home, she significantly reduced her standby power consumption, resulting in noticeable energy and cost savings.

Case Study 2: Energy-Efficient Appliances

John was concerned about his refrigerator's power usage. He purchased a smart plug with energy-monitoring features and connected it to his fridge. 

Through the smart plug's app, he monitored his refrigerator's energy consumption. Surprisingly, he discovered that his refrigerator was quite old and inefficient. Armed with this information, he invested in a more energy-efficient refrigerator, resulting in long-term energy savings.

These case studies demonstrate how smart plugs can strategically target specific energy-saving goals and achieve tangible results.

Environmental Impact of Smart Plugs

Beyond individual energy savings, smart plugs contribute to a broader environmental impact by reducing carbon footprints:

  • The Eco-Friendly Aspect: Using smart plugs to control and manage your devices is an eco-friendly choice. By optimizing how your appliances consume energy, you contribute to a reduction in greenhouse gas emissions and overall energy conservation.
  • Reducing Carbon Footprint with Smart Plugs: Smart plugs play a role in reducing your home's carbon footprint by minimizing energy waste. This contributes to the larger goal of reducing environmental impact and conserving resources. When used alongside energy-efficient devices, the effect is even more significant.

Cost Analysis

To understand the financial implications of using smart plugs, conducting a cost analysis is crucial.

Calculate the cost of using smart plugs by considering factors such as the price of the smart plugs, potential energy savings, and additional expenses like energy monitoring devices or a smart home hub. Create a budget that outlines your initial investment and the expected return on investment through reduced energy bill.

Determine the payback period for your smart plug investment. The payback period represents the time it takes for the energy savings to cover the cost of the smart plugs. In many cases, the payback period is relatively short, making smart plugs a cost-effective choice in the long run.

Common Myths and Misconceptions

Addressing common myths and misconceptions about smart plug electricity consumption is essential for informed decision-making:

  • Myth 1: Smart Plugs Consume a Lot of Electricity Reality: Smart plugs consume minimal electricity, especially compared to the energy savings they can provide.
  • Myth 2: Smart Plugs Are Only for High Energy Consumption Devices
    Reality: Smart plugs are versatile and can be used for many devices, including low-power ones like lamps and chargers.
  • Myth 3: Smart Plugs Don't Make a Significant Difference Reality: When used strategically, smart plugs can lead to substantial energy savings and reduced electricity bill.

Safety Considerations

Safety is a paramount concern when using smart plugs. Discuss safety guidelines for using smart plugs to ensure the well-being of your home and family:

When installing smart plugs, follow the manufacturer's guidelines to ensure safe and proper installation. Make sure the smart plugs are compatible with your electrical system and that they are securely connected to the outlets.

Avoid overloading electrical circuits by connecting too many high-power devices to a single, smart plug or outlet. This can lead to overheating and electrical hazards.

Regularly inspect your smart plugs and the devices connected to them. Look for signs of wear and tear, loose connections, or any unusual behavior.

Future Trends in Smart Plug Technology

As technology continues to evolve, smart plug technology is no exception. Discuss the emerging trends in smart plugs and how they contribute to even more energy efficiency:

  • Smart plugs are expected to integrate more seamlessly with renewable energy sources like solar panels and wind turbines, allowing users to make the most of clean energy.
  • Future smart plugs will likely offer more advanced energy monitoring features, providing users with more data and insights into their electricity usage.
  • Using AI and machine learning in smart plugs will enable them to save energy automatically based on usage patterns and environmental conditions.

User Reviews and Recommendations

To provide a well-rounded perspective, include user reviews and recommendations for specific smart plug models. Highlight how Hubitat's cloudfree smart home hub enhances the user experience with smart plugs:

Hubitat's Compatibility

Many users have found that Hubitat's smart home hub works seamlessly with various smart plugs, making it a versatile choice for managing their smart devices. The local processing capabilities of Hubitat ensure fast and reliable control over smart plugs without relying on cloud services.

User Recommendation: Energy-Efficient Models

Users often recommend specific smart plug models that have proven exceptionally energy-efficient. Highlight user-favorite brands and models that align to reduce energy consumption.


Smart plugs are a valuable addition to any smart home, offering a convenient way to control and manage your household devices. While they do consume a minimal amount of electricity, the energy savings they provide far outweigh their energy usage.

In summary, smart plugs are a cost-effective and eco-friendly choice for reducing energy consumption in your smart home. With smart plugs and a Hubitat smart home hub, you can take control of your energy consumption, save money, and contribute to a more sustainable future.

The answer to the question, "Do smart plugs use a lot of electricity?" is a resounding no. They are a practical and energy-saving solution for managing your home's energy consumption and reducing energy bills.

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