You have got a bit of a problem here.
As far as I am aware, new laptops only have a partial install of Windows, you complete the install.
The source files are stored on the hard disk and once installed completely, you have the option to create recovery disks. However, it sounds like the installation files have been corrupted during the power failure, if you are lucky, this is all that will have happened, and the hard disk will be unaffected.
If you bought it from a known retailer, they may be able to provide you with recovery disks, at a cost, Comet do this for about �15.