MacBook lid opened while away (possible bug?)
Thanks for your help,

Using pmset -g log, I have found that EC.Lidopen occurred in conjunction with scheduled wake ups. And true, waking the computer by opening the lid does not render an 'EC.Lidopen' wake-up reason but rather a 'Host (0x01)'.

An EC.Lidopen event in my case is generated when the Mac goes to sleep either after closing the lid manually or after it wakes from Deep Idle due to maintenance and goes to sleep again. I think a lot of people who use the wake up reason to find if someones using their computer can be confused by this function...