This guide is more of a list of data about items which is not shown when you hover over them. It's obviously very short right now but I hope to fill it with more info when I get it. I might expand it for other in-game objects if it appears to be necessary.
Keep in mind that since the game is still in development, all written below might change.

Current guide version: 0.3.0.1/0.5

Note: most of the data regarding consumables such as food and hypos is rather vague because we don't always have the numerical value of our health and hunger stats. I will only post any information I got the reliable numbers for.

You normally have 100 energy points, with power utilities this number can be increased up to 360. Energy cells instantly restore some of your energy.
Note: I personally use Cyano Reprocessor which has the capacity of 165 when fully upgraded, but restores energy over time. Because of that I usually don't carry more that 2 common Energy Cells with me for extreme situations like Stalkers' onslaught.

The 0.3.0 update is here and the crafting is oversimplified, woohoo. With that, the question above rises up.
I don't have enough data yet but it seems that recycling most equipment is more profitable than salvaging it(you mostly get 1 seemingly random part).

To be updated.

Various things that seem to contradict one another, unclear or otherwise interesting.

• Elevators in Garrison say that ARK clinic is on level 1; it's actually on level 4.
  
• Upgrading a non-100% charged ion core restores it to 100%. Useful when you don't have a solar charger for some reasons.
  
• Origin Station is not present in the list of districts in the power stations' screen. You'll have to check it's state on your own.

Currently I'm working on:

• Getting numbers for hypos
  
• Comparing the prices for buying/recycling and resources for crafting/salvaging

If you have something to add, or something youy wish to see here, let me know.