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07/10/2025 10:03 pm
@transparent my reading of the report P28 (and probably limited understanding) is there were 3 oscillation events 11am, 12 and then the catastrophic one @12:30 and after all 3 the demand on the system increased and the demand increase is possibly due the behind the meter PV cutting out. The system recovered after the first two oscillations. The failure cascade truly started from the additional 355MW generation loss due to transformer trip in the substation in the Granada area. (P103 listing) following the 317MW of probably private PV drop-out causing a load increase.
concerning certainly that such voltage and frequency oscillations are not uncommon.
2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with it) open system operating on WC
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