Case Study: Acciona prevents emergency turbine shutdown with Delfos Energy

Acciona prevents emergency shutdown with Delfos and cuts bearing temperature by 4.5°C

Acciona was facing a potential emergency shutdown and severe damage to a wind turbine's low-speed shaft rear bearing, a critical component. The challenge was that the issue was not detectable by standard SCADA alarm thresholds, meaning the failure was progressing silently. The vendor, Delfos Energy, used its predictive analytics platform to identify this hidden thermal deviation.

Delfos Energy's solution utilized its platform to perform a multilayer analysis, identifying a progressive temperature trend and comparing it to neighboring turbines to diagnose hidden physical damage. This accurate diagnosis allowed for a targeted mitigation action that reduced the bearing temperature by 4.5°C. The results prevented an immediate forced shutdown and an estimated financial loss of approximately R$660,000, allowing Acciona to schedule a repair during a planned maintenance window instead.

Acciona