Hi. When adding this mod to KS2-SO i get:

Failed to load mods: Error while loading recipe prototype "barrel-recycling" (recipe): energy_required can't be <= 0.001.
Modifications: Quality › Krastorio 2 Spaced Out

Mods to be disabled:
quality (2.072)
Krastorio2-spaced-out (1.5.3)

Hi, thank you for the report.

Can you please check which exact mod combination causes this issue?
I was not able to reproduce the issue with Factorio SA 2.0.72, auto-barrel 0.4.1 and Krastorio 2 Spaced Out 1.5.3.
After loading a save, barrel-recycling recipe's energy_required is 0.0625 as you'd expect.

Sorry, I have gone trough toggling mods off one-by-one and i cannot find the cause.

Though i can share a save file with the mods i currently use.
https://www.dropbox.com/scl/fi/hymk7hsrduizwnej0keue/krastorio-spaceage2.zip?rlkey=d69wv6pz0a7tuc1o9l5g7a4v7&st=l3476fjn&dl=0
(it will preview the zip, you can find the download button at the top right corner)