> crap like that report

> Only those working closely in that profession have any knowledge of the underlying causes.

This report is literally from the ENTSO-E which is the main regulatory body for the grid in Europe.

> Crap quote from the report "but no significant oscillations with amplitudes above 20 mHz".

What is the "crap" about that? An amplitude can still be measured in Hz, if you are looking at oscillating frequency deviations, if that is what you mean.