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MrTortoise | 3 years ago

do you have any data to support that?

discuss

order

nrp|3 years ago

Sure. Two good sources are:

1. Life Cycle Assessment of Fairphone 4, showing an estimated 75% of energy use occurring during production and 16% during the lifetime of use: https://www.fairphone.com/wp-content/uploads/2022/07/Fairpho...

2. Eco profile of a 13.5" Surface Laptop 5, showing 85% of energy use occurring during production and 12% during the lifetime of use: https://www.microsoft.com/en-us/download/confirmation.aspx?i...

fock|3 years ago

now a fairphone uses 2W during use, a dual-socket server 100W in idle (!). Assuming emissions scale with weight, I'd say for a typical server, this is very different.

Still, I agree with you: design for efficiency and then mend and use efficiently.

solardev|3 years ago

What about for desktops? Servers operating at capacity? GPUs?

t14n|3 years ago

https://www.cell.com/patterns/fulltext/S2666-3899(21)00188-4

> We stress that this estimate carries some uncertainty but gives us a reasonable idea of the impact of ICT. Across studies, roughly 23% of ICT's [information and communication technologies] total footprint is from embodied emissions, yet the share of embodied emissions for user devices specifically is ca. 50%. This is because, unlike networks and data centers, user devices are only used for parts of the day and use less electricity, but are exchanged often, especially in the case of smartphones.

"embodied emissions" being emissions generated from manufacturing.

older blog discussing data from older devices and electronics:

https://www.lowtechmagazine.com/2009/06/embodied-energy-of-d...

mindslight|3 years ago

For a rough first pass, I would just look at monetary cost.

I was going to dispute OP's comment. Thinking of my old Athlon server that used around $20 of electricity per month, cost about $600 new IIRC (mobo+CPU+RAM), and ran for more than a decade ($2400). But there has been a concerted effort to lower device power consumption, and my current 5700G server (two generations later) uses only around $5/mo of electricity.