
Now you have to kill "Him", or the Electric Man, under the tower in the cornfield. Once he shows up, place two turbines near the tower and kill him with an EMP grenade or the Galvaknuckles. Maxis will say you need more power if done correctly.
Hint: It is advised to wait at a regular busstop until the Electric Man appears, and then head for the Tower, as it can take some rounds before he shows up.