@gandalf_der_12te@lemmy.blahaj.zone
Post #2013074
2026-05-04 02:49 UTC
actually that reminds me --- there's a series on youtube about putting solar panels on machines and checking whether they generate enough power to power the device
so they put solar panels on a car and check whether the car runs,
they put solar panels on drones to check whether they fly
would this work for a laptop? how much solar panel area do you need to run the laptop? I assume 30W power usage, that means you need 0.15 m² solar panels under full sunlight, my laptop has like 15x20 cm which is 0.03 m² ... so, you could only use it 20% of the time to give it time to recharge.
Replies (2)
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@AdrianTheFrog@lemmy.world 2026-05-05 01:43
With a super lightweight laptop, 5w is achievable during light usage. I have one that draws that. It's usable for Google Docs sort of stuff indefinitely on a 5w charger. It can also go down to ~2.2w with low screen brightness and very low load. It is absolutely terrible though, celeron 3855u. I got Minecraft Java to run at 60 fps though... But it was probably using 7-12w then. With a modern arm chip, you could get pretty great performance at that power draw. My phone (snapdragon 8 gen 3) in power saving mode can be like 5-10x faster at about 6 watts it seems like.
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@TimeNaan@lemmy.world 2026-05-04 05:54
Most laptops come with 100W bricks, 30W is consumption at idle but most consume around 60W when under load