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The official report on the blackout in Spain and Portugal was just released
Original source (in Spanish): https://www.miteco.gob.es/es/prensa/ultimas-noticias/2025/junio/se-presenta-el-informe-del-comite-de-analisis-de-la-crisis-elect.html https://www.miteco.gob.es/es/prensa/ultimas-noticias/2025/ju...
- motorest 1y agoIs this report trustworthy? I mean, it's strange that all of a sudden conventional power plants were the sole culprit.
- Arnt 1y agoTurning off all of the solar at the same time must've been an act of desperation.
- nbf_1995 1y agoThe solar wasn't turned off intentionally. The solar turned off automatically due to the over-voltage on the grid.
- toomuchtodo 1y agoThere is something called "high voltage ride through," where solar inverters that support it will dynamically adjust to above nominal voltage. If support and coordination are lacking, failure mode is rapid shutdown vs remaining connected. https://www.iso-ne.com/static-assets/documents/committees/comm_wkgrps/prtcpnts_comm/pac/mtrls/2014/jul112014/inverter_manufacturers_perspective.pdf https://www.iso-ne.com/static-assets/documents/committees/co... https://www.sciencedirect.com/science/article/abs/pii/S1364032122000533 https://www.sciencedirect.com/science/article/abs/pii/S13640...
- motorest 1y agoRelated discussion: https://news.ycombinator.com/item?id=44301186 https://news.ycombinator.com/item?id=44301186
- JetSpiegel 1y agohttps://www.miteco.gob.es/es/prensa/ultimas-noticias/2025/junio/se-presenta-el-informe-del-comite-de-analisis-de-la-crisis-elect.html https://www.miteco.gob.es/es/prensa/ultimas-noticias/2025/ju... The is the Spanish government press release, it should be changed to the primary source. @dang
- tomhow 1y agoThanks for this. HN is an English-language site, so we always want the main link to be to an English-language source, even if it's a second-hand report. I've added the primary source to the top-text. All that said, as someone else pointed out, there's already been a discussion about this on HN.
- toomuchtodo 1y agoReport: https://d1n1o4zeyfu21r.cloudfront.net/WEB_Incident_%2028A_SpanishPeninsularElectricalSystem_18june25.pdf https://d1n1o4zeyfu21r.cloudfront.net/WEB_Incident_%2028A_Sp... https://archive.today/2kJ4i https://archive.today/2kJ4i https://web.archive.org/web/20250619151545/https://d1n1o4zeyfu21r.cloudfront.net/WEB_Incident_%2028A_SpanishPeninsularElectricalSystem_18june25.pdf https://web.archive.org/web/20250619151545/https://d1n1o4zey...