What about the fuse box?

Hint 1 of 14:

Have you checked the power meter dials above the fuses?

Hint 2 of 14:

Have you made sparks in the fuses by walking on them?

Hint 3 of 14:

Notice any changes in the dials?

Hint 4 of 14:

You don't need to solve this until later in the game!