HV · High voltage
The transmission-class voltage at the point of interconnection and the GSU transformer; HV breakers and switchgear are among the longest-lead items on a campus schedule.
Current numbers
~128–208 wkHV/substation power transformer lead time (standard); constrained markets run longer still — often the schedule's long pole
1 Jan 2026EU F-gas ban on putting new F-gas-insulated switchgear into operation: <=24 kV (24-52 kV from 2030; GWP>=1 HV bands from 2028/2032; Art. 13 derogations)
~44 wkaverage MV-class switchgear lead time (Wood Mackenzie Q2 2025); HV breakers and GIS run far longer — see the HV switchgear claim