The NoCo Herald

Larimer and Weld counties, Colorado

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Upgrades to existing substation

Upgrading the existing St. Vrain Power Plant substation to 245 kV on a 629-acre site

Under constructionSite plan review · 2AMSPR25-82-109379 Cr 34

For
Energy
Acres
629
Where it is in Weld County, and close up. Map © OpenStreetMap contributors

Where it stands

  1. Oct. 2Under construction when the Herald began following itUnder Construction

What it says

An Amendment to Site Plan Review Permit No. 1AMSPR23-82-10 to 245 kV upgrades to the existing St. Vrain Power Plant substation in the I-3 (Industrial) Zone District

In Weld County's words and the applicant's, as filed.

What the agencies said9

The county sends a case to the agencies it touches. Each one's response, as the county records it:

AgencyResponseDate
Development ReviewComments with ConditionsJan. 21
OGEDNo ConcernsDec. 19, 2025
Division of Wildlife - SouthNo Response
FirestoneNo Response
JohnstownNo Response
MillikenNo Response
PlattevilleNo ConcernsDec. 22, 2025
Platteville F-13Advisory CommentsDec. 18, 2025
Central Weld County Water DistrictNo ConcernsJan. 6

The case's record at Weld County. A proposal is a plan filed for review, and it may change or be withdrawn before anything is built.