Lovely Photo Bill.... but i fail to find a lightening spike atop the building especially mounted with solar panels?
I got following data about the solar cell, from the site you have indicated.
"Tiny Silicon Solar Cell For the laser communicator, or for powering the three penny radio. (You will want three for the radio.) This tiny solar cell is 2 centimeters on a side. They can be soldered, but we find it easiest to use transparent tape to stick wires onto the cell. "
So, an school student (assuming an age group of 8 to 15) being asked to design a 1000VA UPS with solar supply is, i feel a helicopter design.