ᐅ Retrofitting Roof Windows with Electric Roller Shutters

Hello,

We want to retrofit electric shutters for the roof window in our new build (the developer wants €2500).

The options are roof window shutters with a wired power connection or with solar power. I have questions about both options.

Wired power connection: How do I connect the shutters to power? I assume an electrician would need to run an electrical cable to a rocker switch for control, but can the cable and switch be installed later by myself? Is it even accessible afterwards? Where exactly should the cable come out?

Solar with battery and wireless switch:

Does anyone have experience with this? Does it work reliably? The roof window faces northeast—is that enough to generate sufficient power?

Does anyone know which wireless technology is used by the major brands like Velux, RotoQ, or others, for example Z-Wave, Zigbee, or proprietary systems?

My sister ordered the Velux system later with a wireless switch (+70 euros) and solar power, paying only about one-third of what the general contractor wanted. She is very satisfied with it so far.

We have a Roto window with solar. Electricity installation was too complicated for us afterwards – timber frame construction. So far, it has been working perfectly – since 2018.

Which type of windows will be installed?

For those respondents who are already using it, it would also be interesting to know the orientation of the window.

And can someone provide information about the wireless technology used by the two manufacturers? Is it Zigbee, Z-Wave, or something else?