DETAILED MAP OF THIS ZONE - NPC's (there aren't any) & IMPORTANT PLACES:
Important places (green color):
1 - This is where you will begin your exploration of this map. You will be able to see your character icon here, however if you decide to move north, the icon is going to disappear. Sadly, this means that you won't know exactly where you're standing.
2 - This is the main entrance leading to the power plant area. You will be able to choose between a large gate and a destroyed part of the wall.
3 - This is the main entrance to the power plant building. You will have to reach it in order to fulfill one of the main quests. There's a small ladder on your left. You must use it. As a result, you will move on to Sacrophagus zone.