This week we try the Starbucks caramel protein latte before discussing this week’s Windturbine Powertrain Reliability Workshop at Argonne National Labs along with the National Labs of the Rockies (NREL). We discuss the industry-cutting concerns about common mode circulating currents and their impacts up-tower, how the standard technologies don’t work (brushes, insulated bearings, etc) and the studies involved in resolving the issue instead of band-aides. This impacts what we run into in industry as a microcosm. We then discuss grid issues, high harmonic contents, where they are sourced and what their impacts are on the power side and grounds for industry – commercial and manufacturing – as well as utility. This includes a discussion of the final RCFA by Entso-e on the Iberian Peninsula blackout from April, 2025 and how it impacts global grids.
Generated overview of the Iberian Peninsula Entso-e root cause failure analysis overview with an aim towards regulatory requirements. Video is Pictory.ai for something other than audio, audio was generated by NotebookLM and verified by the MotorDocAI team (humans). Fascinating lessons learned. The complete report can be downloaded here: https://www.entsoe.eu/publications/blackout/28-april-2025-iberian-blackout
