ᐅ Electric roller shutters with timer?

Hello
We have a timber-framed house with shingles and want to install roller shutters. We were told that using a strap-operated system wouldn’t work because of the strap guide. Electric ones were offered instead. However, this would mean calling in an electrician to install a power outlet at every window in the house. That would be inconvenient since we have just finished renovating.

But if we choose the roller shutters with a timer for 500€ more, the electrician would no longer be needed.

We don’t understand this. Why would the electrician no longer be required?

Best regards from a small town in Hesse, TM

Thanks, I understand, but the roller shutters still need electricity to receive commands from the remote control. So, an electrician is needed after all!? Regards, TM