Energy used for recycling paper: roughly 1000 kWh/short ton (Wikipedia). Savings of about 60%.
Energy used for recycling aluminum: 700 kWh/short ton. (Various websites.) Savings of about 95%!
I knew aluminum recycling was crazy efficient compared to refining it in the first place, but I'm surprised it's the same or even cheaper per ton as paper.
Sidenote: Recycling aluminum really makes sense when you consider the energy you need to make it in the first place:
"Large, modern cells operate with a specific energy consumption of 5.9 to 6.4 kWh/lb of aluminum. The energy required to produce aluminum from scrap metal is approximately 5% of that required for primary production"
Energy used for recycling aluminum: 700 kWh/short ton. (Various websites.) Savings of about 95%!
I knew aluminum recycling was crazy efficient compared to refining it in the first place, but I'm surprised it's the same or even cheaper per ton as paper.