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Men you need to be a good mathematician to get that answer right

Random Person

Hey, an air table or embedded google sheet would provide a better view.


Hello everyone! Thanks for your article. I would ask if it is possible to have the energy consumption to produce 1 sqm of plywood. Would be perfect the follow details: birch fsc plywood 24 mm thick. Thanks


It has not been a trivial task for me to try to find these seemingly straightforward numbers! However I'd like to see the specific sources for the figures. At the moment the listed source is a website which links to over 70 papers. Would you have any time to be more specific with which papers were used for each figure?

I do love low tech magazine regardless, keep it up!

Cheers, Forty-two

Owen Thurgate

Amazing resource, really highlights the value of recycling aluminium and the high energy cost of plastic! Thank you!

kris de decker

@ forty-two

I made these calculations based on the data in those 70 papers...


The estimate for energy needed to produce 1kg of Aluminium is way off. According to Science Direct (which shows extract from per reviewed papers) the energy need to produce 1kg is more like 13-15kWh (and not 60kWh as you quote) This is from information from Alcoa which is the largest producer of Aluminum


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