The state Public Service Commission released its end-of-investigation report on the turbine collapse at Altona Wind Farm on its web site. The document is in PDF form.
The commission determined that Noble Environmental Power Power LLC had stronger documentation and record-keeping on maintenance and inpsections of each turbine.
Turbine manufacturer General Electric Co. has implemented remote testing procedures to preclude a repetition of the circumstances that led to the incident. The commission investigated the wind farm after one turbine collapsed and another was damaged March 6, 2009, at the project in Clinton County. Noble, the largest wind developer in the state, operates several projects with 612 megawatts of installed capacity and 216 in development.
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