What Size Solar Panel Do I Need for a Starlink Satellite Internet?

75W running draw24h/day defaultelectronics

Quick Answer

A Starlink Satellite Internet at 75W needs at least 600W of solar panels to run sustainably. Running 24 hours per day draws 1.8 kWh daily. You need 600W of solar total (3 panels at 200W each). Pair with a 450Ah LiFePO4 battery at 12V for 2-day cloudy weather reserve. The EcoFlow River 2 Pro is the simplest all-in-one solution for this load.

System Specs for a Starlink Satellite Internet

Calculated for 24 hours/day usage, 5 peak sun hours, and 2-day LiFePO4 battery autonomy.

ComponentMinimum SizeDetails
Daily Energy1.8 kWh75W for 24h
Solar Panels600W3x 200W or 6x 100W panels
Battery450Ah at 12VLiFePO4, 2-day reserve (5.4 kWh usable)
Charge Controller70A MPPTHandles up to 600W panel input at 12V

Running more than just a starlink satellite internet? Add more appliances to your load with our full calculator

Recommended Power Station

EcoFlow River 2 Pro

768Wh capacity, 800W AC output — runs a fridge, lights, and electronics for 1–2 days.

768Wh

Capacity

800W

AC Output

220W

Max Solar In

Buy on EcoFlow.comView with Solar Panel Bundle

DIY Component List

Building your own system for a starlink satellite internet? These components match the specs above.

Solar Panel

600W total

Renogy 400W Solar Starter Kit (2x200W + MPPT) on Amazon

Battery

450Ah 12V LiFePO4 minimum

LiTime 12V 200Ah LiFePO4 on Amazon

Charge Controller

70A MPPT minimum

Renogy 40A MPPT Rover on Amazon

About the Starlink Satellite Internet Solar Load

The Starlink Standard dish draws 50–100 watts depending on weather and satellite lock conditions, averaging around 75 watts. Running 24 hours per day produces 1,800Wh per day — making Starlink one of the largest continuous loads in any off-grid setup. Most Starlink users running it full-time need at least 600W of solar.

Frequently Asked Questions

How much solar do I need for Starlink?▼
Starlink draws about 75 watts continuously, which adds up to 1,800Wh per day running 24/7. With 5 peak sun hours and 20% system losses, you need 480W of solar to replenish that daily. Add a 200Wh buffer for a laptop and phone charging and you are looking at 600W total. With a 200Ah LiFePO4 battery, the system carries you through 3–4 hours of nighttime use before the battery needs solar input the next morning. The EcoFlow Delta 2 Max (2048Wh) with two 220W panels is the turnkey solution for Starlink-first setups.
Can Starlink run on 12V solar?▼
Yes, with a modified or official 12V adapter. Starlink's standard power supply converts AC to DC internally, but the company sells a 12V DC cable that bypasses the AC adapter entirely, reducing draw from 75W to about 48W. This is a significant savings in a 12V solar system. The 12V cable works with all current Starlink dishes and is sold directly on Starlink's website for around $25. If you are building a van or RV solar system with Starlink, the 12V cable is strongly recommended.
What is the best battery for Starlink off-grid?▼
For Starlink running 24 hours, you need enough battery to cover overnight hours when panels produce nothing. 8 hours overnight at 75W equals 600Wh of nighttime draw. A 100Ah LiFePO4 battery at 12V holds 1,200Wh usable, giving you nearly two full nights of Starlink before the battery gets below 50%. The LiTime 100Ah 12V LiFePO4 and Renogy 100Ah Smart Lithium are both solid choices in the $200–280 range. Pair with a 300–400W solar array and a 30A MPPT controller for a complete off-grid Starlink setup.

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Running more than just a starlink satellite internet?

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