GSU · Generator Step-Up transformer
Transformer that raises on-site generator output to grid or distribution voltage for behind-the-meter power.
Current numbers
3–4 yr (~156–208 wk)US GSU transformer lead time (SemiAnalysis, June 25, 2026); US substation transformers >160 wk (Wood Mackenzie, May 4, 2026)
>160 wkload-serving substation power-transformer lead time; GSU is a separate generator-connected category