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The Power Plant's generator can't work because a thief has taken it's component. First talk to the manager then go to exit and a guard will say that he got a message from cerulean city, that a shady character is hanging around, go through route 9,(see here for a walkthrough) and to Cerulean Gym, a Rocket will bump into you, now go up to Cerulean Cape, you'll see him near the bridge, beat him then go to cerulean gym, surf in the 4 squares of water in the middle of the gym (and press when looking at the top-left half, you will get the machine part, now head back to the station, the manager will give you TM07, you can also trade Dugtrio for Magneton with a person inside.

[edit] Trainers

• Rocket Grunt
  • Golbat (lvl. 30, 1098 EXP) and 1200

[edit] Items

• TM 07