Energy usage
So according to the energy usage and facility number reveal post from Henri in the Update section, you use 2 energy per session (0.5 for coaches) and gain 15 energy per day, plus 1 per level increase in facilities (0.2 for maids).
So here is an example of what I did to one of my players:
Yesterday, after an offseason, my jungler was at 95 energy, which was bad because I wanted it to be under 90. So I had him do 10 sessions of streaming, and 6 sessions of soloq (I avoided teamranked because all my other players were at 100 energy).
All in all, the jungler should have used 20 energy from streaming, plus 12 from soloq.
Also, I am not counting coach training energy usage for simplicity's sake. I had my jungler under 4 coach sessions. You can do the math if you want.
I have lvl 4 bed, lvl 2 house, and lvl 7 utility. I should have gained 15 energy from daily update + 4 from bed, 1 from house, and 1.4 from utility.
So the total change of energy of my jungler should have been:
15 + 6.4 - 32 = -10.6
If this went as I have planned, my jungler's new energy should have been this:
95 - 10.6 = 84.4
which is within optimal values.
Instead, after today's daily update, my jungler actually GAINED 3 energy, marking him at 99.
I think the energy system is very interesting. However, I want the energy system to show accurate and precise numbers. Everything so far seemed so random.
EDIT: So energy usage for soloQ and team ranked games update the day after you have set them. Although this question is mainly on me, I will leave this post here in case someone else also missed this information.
Also ninja edited this to make it less of a rant.