The game is particularly useful for A2 Geographers, as one of the units studied involves World Cities.
Starting with a certain amount of financial resources, you can build tourist attractions like ski resorts or campsites - or invest in new energy resources to sustain a growing population. There are even stock exchange-style markets where you can buy and sell coal and gas resources. After 150 turns, your town is given an overall score from E to A+.
I think this is great fun and for all Geographers out there, I think this is well worth looking at. See more at electrocity.co.nz