It's one thing to link to something on the internet, it's quite another to understand it.
I admit, my choice of words may have been inappropriate to a native English speaker.
Still:
Bleedless engines ==> more battery power needed to do stuff*.
I hope that is clear enough.
*"Stuff" that was previously done by using bleed air in some form. Some of these stuffs are mentioned very well in my link. But OK, among them are cabin pressurisation, some cockpit instruments, some hydraulic pumps and de-icing systems.
I will now leave this discussion to the more fluent English persons.