Engie wind farm damaged by high winds in South Dakota
June 2026Published 1 Oct 2026Responsible editor: Chief Editor
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Companies named in the reporting of this entry (being named is not a finding of fault): Engie North America
What happened
Hurricane-force winds on 29 June damaged more than 20 of the 92 turbines at the Triple H Wind farm in Hyde County, northwest of Sioux Falls. Engie North America said it was assessing the damage, and the site remained out of service. A state of emergency was declared following the storm.
Contributing factors
Hurricane-force winds from the 29 June storm. The precise damage to each turbine has not been reported.
Lessons learned
- Extreme wind can damage many turbines at one site and take the whole farm out of service.
- Operators should finish a structured damage assessment before returning turbines to service after hurricane-force winds.
- Site status should be reported separately from a wider storm emergency so the asset outage is not confused with the regional declaration.
More lessons on weather and external hazards, from every incident on the register.
Site page: Triple H Wind Project (status, dates and other incidents)
Published 2026-10-01. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
