On average, a WiFi router uses between 5 and 20 watts of electricity.
Here's a more detailed breakdown:
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Average Consumption: While consumption varies, a safe average to assume for modern WiFi routers from top manufacturers is around 10 watts.
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Factors Affecting Power Usage:
- Model: Different router models, especially older ones, may consume more power.
- Features: Routers with advanced features like multiple antennas, MU-MIMO, and USB ports tend to use more electricity.
- Usage: While the power draw is relatively constant, heavy network activity may slightly increase consumption.
- Age: Older routers are generally less energy efficient than newer models.
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Estimating Your Router's Power Consumption:
- Check the Router's Power Adapter: The adapter should have a voltage and amperage rating (e.g., 12V, 1.5A). Multiply these values to get the power consumption in watts (Volts x Amps = Watts). Keep in mind that this is the maximum power the adapter can supply, not necessarily the actual consumption of the router. The router may be pulling significantly less power.
- Use a Power Meter: A power meter (like a Kill A Watt) can provide a precise measurement of your router's actual power consumption.
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Why Does This Matter?
- Electricity Bill: While 5-20 watts may seem insignificant, a router runs 24/7. Over a year, this can add up.
- Environmental Impact: Reducing energy consumption, even by small amounts, contributes to a smaller carbon footprint.
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Tips to Reduce Router Power Consumption:
- Buy an Energy-Efficient Router: Look for routers with Energy Star certification.
- Turn Off Router When Not in Use: While not always practical, turning off your router when you're away for extended periods can save energy. Consider using a smart plug to schedule on/off times.
- Update Firmware: Keep your router's firmware updated to ensure optimal performance and energy efficiency.
