Olney Powerworks

 is a location added to Fallout 3 in the Broken Steel add-on. The player is sent here in order to find a Tesla coil during the Shock Value quest.

Layout
It is an old power plant in the sewers of Old Olney, owned before the Great War by PPE, which might have been a branch of Poseidon Energy.

Notable loot

 * 3x12 Alien power cells can be found on the stove and table with the glowing electric globe in the room at the bottom of the pit where the Tesla Coil is found.
 * 2x9 Alien power cells can be found in the room past the Tesla coil (upstairs). The hallway can be noted by the many servers along the walls and the two mark VI turrets at the end. At the very end of this hall, on both the left and right of the turrets, there are tiny alien spaceship playground models with arrows on the side of their stands pointing upward. Look above each of these to find two ammo boxes on shelves, they contain the Alien power cells. There are considerably more alien power cells (around 45) with the Scrounger perk, so having this perk is recommended to reap the largest amount of this rare ammo.

Appearances
appears in the Fallout 3 add-on Broken Steel.