GIS vs Air Insulated Substation: When the Site Decides
Ameren's Goalby substation shows the real GIS vs air insulated substation test: not whether the lot is small, but whether site cost scales with area.
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Hitachi's Mississippi Transformer Plant Starts in 2029
Hitachi's $528M Mississippi transformer plant is scheduled to build 10 to 160 MVA units from 2029, per a Hitachi SVP, and replaces an existing plant.
Read analysisSRP Marigold Energy Center: What the Substation Scope Shows
SRP approved Marigold on Sept. 14. What the SRP Marigold Energy Center substation scope discloses, and what the ACC siting hearing does not cover.
Gen-Tie Line Eminent Domain: 550 Feet Stops 1,053 MW
A Colorado judge found gen-tie line eminent domain unavailable on a wind interconnection route. 550 feet of easement holds up 1,053 MW of built turbines.
DOE 2029 Transformer Efficiency Requirements, by kVA
DOE 2029 transformer efficiency requirements are uneven by kVA and phase. Single-phase and three-phase units take their biggest cuts in opposite ranges.
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