Yes, it is possible.
You have to go to disk utility.
choose your ssd, klick on the tab "partition".
now klick on + under the partition.
choose ms-dos as format.
reboot, press F12 on reboot until you get to a screen where you can choose to boot from your usb stick or usb dvd drive (where ever you got your windows on).
when in the windows installer you have to choose your ms-dos partition.
it is the one showing as completely free, the mac partition shows as full.
klick on more options on the bottom of the window.
klick partition, do NOT klick on delete partition or something else, because if you do, your mac partition is possibly unusable.
klick install
now you should be fine.