Substation
The facility transforming and switching power between transmission and the site, a major long-lead build item.
Current numbers
~128–160+ wkHV/substation power transformer lead time (standard); up to ~60 months in constrained markets — often the schedule's long pole
~128–160+ wkHV/substation transformer lead time (≈144 wk GSU; up to ~60 mo constrained) — OFE-by-default, pre-GC
~128–160+ wkHV/substation power-transformer lead time (~128 wk average power transformer, ~143–144 wk GSU, WoodMac Q2 2025; large-unit quotes have ranged ~80–210 wk; up to ~60 mo in constrained markets) — the schedule-dominating long pole