Pattern Energy Investigates Turbine Collapse At Ocotillo Wind

An investigation is currently under way after a Siemens 2.37 MW-108 SWT turbine collapsed at Pattern Energy’s Ocotillo wind project in California.

Pattern Energy says that on Nov. 21, one of the turbines at the wind facility “fell within the designated setback zone surrounding the turbine’s base.”

No one was injured, and authorities have been notified.

In a statement on the project website, Pattern Energy says, “We are working closely with the turbine manufacturer, Siemens, to identify the root cause of the failure, and a full investigation is currently under way.

“Our first priority is the safety of our employees, contractors, neighbors and the environment,” the company continues. “We are taking this issue very seriously and will communicate more information as it becomes available.”

The 265 MW Ocotillo wind farm, representing an investment of more than $500 million, utilizes 112 American-made wind turbines and offers an annual power equivalent equal to the needs of approximately 125,000 Southern California homes.

According to Pattern Energy, Ocotillo wind is the first renewable energy project to transmit power over the Sunrise Powerlink transmission line, which connects San Diego with the Imperial Valley.

The Ocotillo wind farm has been operational since July 2013.



  1. thanks for zero information. Will the rest of the turbines be shut down until the cause is corrected? Did Pattern Energy use turbine blades that were larger than the towers were designed for? Will the retrofit cost hundreds of millions of dollars? Answer those questions please.

  2. How can there be a designated setback area when the ground directly below all of these turbines is public land open to the public? Dirt bikers, hikers, photographers etc.regularly walk below those towers. I’ve done it myself to take photos. There are no fences, warning signs or anything to alert people of the dangers or prevent people from coming close.

    Some are very close to roads, trails, a school and a major highway, too.

    I hope you will push harder for real answers from the regulators who are supposed to protect public safety on public lands. Our publication contacted the BLM and they did not even return our inquiry after this turbine collapsed. If someone gets hurt or killed next time they would surely sue the government and all taxpayers would be on the hook.


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