What are the power requirements for Starlink equipment?

Mark Washington
Mark Washington
Satellite communication expert with 15 years' experience.

Hello! That's a great question about Starlink equipment power consumption, especially if you're planning to use it in an RV, on a boat, or anywhere you need backup power. Its power consumption isn't a fixed value; it varies depending on the antenna version you have and its operating status.

In simple terms, here's how to understand it:


Different Versions, Different Power Consumption

Starlink antennas primarily come in two main versions: the original round "dishy" and the later standard rectangular "flat panel." Their power consumption differs quite a bit.

  • Rectangular Antenna (Standard/Gen 2 and later versions)

    • Average Power Consumption: Approximately 50 - 75 Watts.
    • Peak Power Consumption: If the "Snow Melt" mode is activated (the antenna heats itself to melt accumulated snow), power consumption can spike to around 100 - 150 Watts.
    • Analogy: When used normally, it consumes power similar to a desktop monitor or a large LCD TV.
  • Circular Antenna (First Generation)

    • Average Power Consumption: This version is more of a "power hog," averaging around 100 - 120 Watts.
    • Peak Power Consumption: Similarly, in "Snow Melt" mode, power consumption can easily reach 150 - 180 Watts or even higher.
    • Analogy: Its power consumption is more like an older desktop computer tower running.

(Image illustration: The more power-hungry circular antenna on the left, the more energy-efficient rectangular antenna on the right)


Key Factors Affecting Power Consumption

  1. Snow Melt Feature This is the biggest "power guzzler." The antenna has a built-in heating function to ensure the signal isn't affected by rain or snow. In areas without snow, you can completely turn it off in the app (set to Pre-Heat or OFF) to save a significant amount of power.

  2. Data Usage When you engage in high-data activities like watching 4K videos, playing online games, or uploading large files, power consumption will be slightly higher than simply browsing the web, but this increase is usually not significant.

  3. Signal Search When first powered on or when the signal is poor, and the antenna needs to adjust its position to find satellites, power consumption will also briefly increase.

How is it Powered?

Starlink doesn't have a power cord that plugs directly into the antenna. Its power supply method is somewhat unique:

  • The antenna connects to an indoor router/power adapter via a special long Ethernet cable.
  • This router then plugs into your wall outlet (AC power) using a standard power cord.
  • Therefore, if you want to use it in an area without grid power, you'll need a device that can provide stable AC power, such as a portable power station or an inverter.

Advice for Mobile Users

If you plan to use it in an RV or outdoors, you'll need an inverter or power station that can provide at least 300 Watts of continuous power output, especially if you're using an older circular antenna or need to enable the snow melt function in winter. It's always good to have ample headroom; a 500 Watt device would be more reliable.

To Summarize

  • Daily Use: The newer rectangular antenna uses about 50-75 Watts, while the older circular antenna uses about 100-120 Watts.
  • Maximum Power Consumption: Primarily depends on whether the Snow Melt feature is on; if so, it will double.
  • Power Planning: For mobile use, ensure your power device can handle at least 150-200 Watts of continuous output.

Hope this explanation helps you!