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# NextEra’s proposed 300 MW Platte County project needs a new substation; no approval is posted
- URL: https://laramiebasin.com/intelligence/filings/diamond-road-substation-nextera-platte-county/
- Published: 2026-11-06T23:15:06.000Z
- Updated: 2026-11-06T23:15:06.000Z
- Description: Black Hills asked for action by October 1 on the roughly $11.93 million Diamond Road Substation, and no approval is posted.
- Author: Cameron Schaefer
- Tags: Electrical, Civil, #filing

**What changed:** Cheyenne Light asked the Wyoming Public Service Commission to consider its Diamond Road Substation application by October 1, 2026\. As of November 6, the docket lists no staff memo, open-meeting action or order beyond the April notice of application.

**Why it matters:** The new 230 kV substation would connect a NextEra hybrid solar, wind and storage project of 300 MW in Platte County. The application estimates about $11.93 million: $6.35 million for the substation, $4.30 million for network upgrades and $1.28 million for a generator tie line of about one mile. It targets environmental permits in Q3 2026, a construction start in Q4 2026 and service in Q3 2027\. The application’s construction and service dates remain unverified company targets. We found no posted approval as of November 6\. The application also says NextEra has no power purchase agreement with Cheyenne Light, and it names no end customer.

**Next step: monitor.** Watch for a staff memo, an open-meeting date or a named buyer for the power.

**Sources:** [Wyoming PSC docket portal](https://dms.wyo.gov/external/publicusers.aspx), read November 6, 2026; search by record number. Record 18096 (20003-267-EN-26): Application, March 31, pp. 4–8; attachments and Orders tabs.