Yeah, but a nice little 300w motor can really rocket along on the flat, and if she plans it right (and has the runway to do it) she can wind that bike up to 35km/hr by the time she hits the bottom of that hill, which will buy her a lot of power and momentum and speed to get up that slope, probably a lot faster than you can on your road bike. <grin> You can tell her from me that once she adds her own wattage, she'll be happy she gets to add her bit to the equation.

BTW - on a flat paved road my own little 250w front hub can get me up to 23mph (38km/h) within 45 seconds, unassisted by me, from a dead standstill. These motors are very fast and very efficient.

I'm with Robert C and all those who suggest she find a nice woman's bike - hybrid (which is what I have) or cruiser - that suits her, and add either a simple hub motor (front or rear) or a mid-drive. The kits are fairly easy to install , the front hubs are the easiest and are also removable at will. I put on my kit all by myself and it took only minutes to do. And I'm neither a mechanic nor an electrician. It was that easy with the hub motor.

You know, once she gets that ebike you're going to have all kinds of fun trying to keep up with her.