What Size Solar Panel Do I Need for a Laptop?

60W running draw8h/day defaultelectronics

Quick Answer

A Laptop at 60W needs at least 200W of solar panels to run sustainably. Running 8 hours per day draws 480 Wh daily. A single 200W solar panel covers it. Pair with a 150Ah LiFePO4 battery at 12V for 2-day cloudy weather reserve. The EcoFlow River 2 is the simplest all-in-one solution for this load.

System Specs for a Laptop

Calculated for 8 hours/day usage, 5 peak sun hours, and 2-day LiFePO4 battery autonomy.

ComponentMinimum SizeDetails
Daily Energy480 Wh60W for 8h
Solar Panels200W1x 200W panel covers it
Battery150Ah at 12VLiFePO4, 2-day reserve (1.4 kWh usable)
Charge Controller30A MPPTHandles up to 200W panel input at 12V

Running more than just a laptop? Add more appliances to your load with our full calculator

Recommended Power Station

EcoFlow River 2

256Wh capacity, 300W AC output — ideal for phones, laptops, CPAP, and small electronics.

256Wh

Capacity

300W

AC Output

110W

Max Solar In

Buy on EcoFlow.comView with Solar Panel Bundle

DIY Component List

Building your own system for a laptop? These components match the specs above.

Solar Panel

200W total

Renogy 200W 12V Monocrystalline on Amazon

Battery

150Ah 12V LiFePO4 minimum

LiTime 12V 200Ah LiFePO4 on Amazon

Charge Controller

30A MPPT minimum

Renogy 40A MPPT Rover on Amazon

About the Laptop Solar Load

A typical laptop draws 45–75 watts depending on workload, with 60 watts being a reliable average for general use including video calls and document editing. Running 8 hours per day produces 480Wh of daily consumption. Most laptops can charge directly from a USB-C power delivery port, making them compatible with EcoFlow power stations without an inverter.

Frequently Asked Questions

How many watts of solar do I need to charge a laptop all day?▼
A laptop running 8 hours uses about 480Wh per day. With 5 peak sun hours and a 20% system loss factor, you need roughly 128W of solar to cover it continuously. A single 200W panel provides comfortable headroom. For a nomadic work setup in a van or on a balcony, a 200W foldable solar panel paired with an EcoFlow River 2 Pro (768Wh) means you can work all day and still have battery reserve for the evening. The River 2 Pro charges from solar in about 3.5 hours with a 200W panel.
Can I run a laptop directly from solar without a battery?▼
Not reliably. Solar output fluctuates with clouds, shadows, and angle, which can cause your laptop to reset or corrupt files during a power dip. You always want a battery in the system as a buffer. The minimum safe setup is a small power station like the EcoFlow River 2 (256Wh) connected to a 100W portable solar panel. The power station maintains a clean, stable output while the panel trickles in solar. This setup weighs about 8 pounds total and fits in a backpack.
What is the best solar setup for working remotely from a van?▼
For a remote work van setup with a laptop running 8 hours, you need about 600–800Wh of daily solar generation to cover the laptop plus phone charging, a hotspot router, and a fan. That calls for 300–400W of rooftop panels and a 200Ah LiFePO4 battery bank. The Renogy 200W Flexible Solar Panel works well on van roofs, and a LiTime 200Ah LiFePO4 battery paired with a Renogy 40A MPPT charge controller handles the full van work setup reliably. EcoFlow Delta 2 with a 220W panel is the turnkey alternative if you want plug-and-play.

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Running more than just a laptop?

Add all your appliances and get a complete system recommendation in under 2 minutes.

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