Object
Wirrn-Tampered Solar Stacks (Outer Hull)
Three outer hull solar energy collectors on the Ark Station's exterior that have been tampered with by the Wirrn, creating dangerous fluctuations in oxygen levels through their power distribution to cryogenic chambers
1 appearances
Purpose
Primary energy systems for the Ark Station's cryogenic sleep chambers and life-support infrastructure
Significance
The solar stacks become a vector for the Wirrn's sabotage, turning a routine life-support system into an active threat that forces the Doctor's party to choose between ventilation and oxygenation
Appearances in the Narrative
When this object appears and how it's used