fire up a terminal either thru "cmd+space" and typing into spotlight terminal.app or Finder > Applications > Utilities > Terminal

i'd modify the energy settings via pmset.
my energy preferences are something along the lines of:

```
sudo pmset -a destroyfvkeyonstandby 1 
sudo pmset -a standby 0
sudo pmset -a sleep 20
sudo pmset -a displaysleep 20
sudo pmset -a proximitywake 0 
sudo pmset -a acwake 1
sudo pmset -a lidwake 1 
sudo pmset -a powernap 0 
sudo pmset -a networkoversleep 0
sudo pmset -a womp 0 
sudo pmset -a ring 0
sudo pmset -a standbydelay 0
sudo pmset -a autopoweroff 1
sudo pmset -a autopoweroffdelay 0
sudo pmset -a tcpkeepalive 0
sudo pmset -a ttyskeepawake 0
```

-a option = all (all options being passed to power manager should appply to battery, ac connected or UPS, connected machine)
(use man pmset to get a full brief on pmset's options/attributes)

>> keep in mind these settings will affect the entire machine; so i'd read up if u're not familiar with'em. (eg. tcpkeepalive will kill off network connections; thus, findmymac won't be available when the machine is offline[for me, this aint a problem -- though, to each, his own.. ])

>> you can get your current settings with `pmset -g`

Also proximitywake causes nearby devices to automatically connect and share info with nearby appledevices that are sharing the same icloud account(that's, if u're willing to buy into what apple is supposedly telling you thru the man pages -- don't know about u but when i turn something off; i want it OFF.)

>> NOTE: from what i remember, proximitywake is a feature introduced prior to 10.13 (high sierra); so it might not be available with el cap(dunno though...with all the security updates... you're gonna have to run pmset -g and man pmset in order to figure it out.)

__ Remember that the man pages are your friend! Whenever you're inside a terminal prompt and aren't sure about what a cmd does; `man <desired_cmd>` in order to get the details about what does what. **Do not **  blindly start typing copying/pasting stuff into the prompt without knowing what u're doing ** this could seriously hinder performance or destroy your system!!** __