I believe there is a bug with the power upgrades, in the code you use "Size", but in the documentation it says "Capacity" for the Carry upgrades. I editted the code and it works. Also, checking the code for the others the Energy upgrades should use "DriveEnergy" instead of "Size". I found some documentation Google "autonauts mod documentation" and click on the reddit "Want to make mods?" and it has a link to the documentation as I don't know if I can post a link here.

Sorry I figured it out, I thought it was for the AMOUNT of upgrades...

It does work, it has been tested successfully by over 250 persons :)

It doesn't work! Neither on pre-created nor newly-created!