Powerhouse

Powerhouse, formerly known as Settlement, is a multiplayer map appearing in Halo: Reach. Very little is known about this map, other than that it is set in a hydroelectric facility on planet Reach.

Overview
Powerhouse was formerly utilized to provide alternative power supply to the rural settlers nearby, but has now been repurposed to support the military war efforts.

Trivia

 * Like all Halo: Reach multiplayer maps, it is based on a campaign level, although the campaign level takes place at night instead of day.