MV · Medium voltage
The utility-to-facility distribution voltage class feeding site transformers and switchgear; the level where lead times, arc-flash energy, and gear cost step up sharply.
Current numbers
~80 MVA x3typical HV/MV transformer unit, N+1, to serve ~150 MW peak; ~10% MVA cushion over MW
~44 wkaverage MV-class switchgear lead time (Wood Mackenzie Q2 2025); HV breakers and GIS run far longer — see the HV switchgear claim