Puzzle:Bergmann Hydroelectric Powerplant

Work in progress, by User:Scarchu.

After the raft ride, cross to the other shore and find B4 door and go through it:

Go straight ahead until you see this door:

Go through it and find a key on the wall:

Go back, after the metallic stairs there is a door, go through it and find this door:

Go down, find the four generators and start G1, G3 and G4. DO NOT start G2:

Because G2 is broken, but we need to override it, use the panel, click on G2, then click override:

If you done everything as it should, you must see this:

Turn on the switch on the left to connect the generators to the grid: