Russ GarrettFinal report on last year's Iberian blackout has been released, including this very interesting diagram showing the contributing factors
Troed Sångberg@russss Facepalm on page 378:
"A 1-hour temporal offset is clearly visible in the RE input forecast results, particularly in the solar ramp profile between 07:30 and 10:00, where the forecasted ramp is systematically shifted. This deviation was detected after the CET-to-CEST time transition on 30 March."