4 ms·
> south of Brazil That sounded strange to me, since Brazil imports power from Uruguay and Argentina through somewhat small DC links, and if only them failing i
by cesarb 7y ago
> south of Brazil
That sounded strange to me, since Brazil imports power from Uruguay and Argentina through somewhat small DC links, and if only them failing is enough to cause a blackout in Brazil, something was probably not configured correctly. So I went looking, and according to https://g1.globo.com/mundo/noticia/2019/06/16/apagao-deixa-milhoes-sem-energia-na-argentina-e-no-uruguai.ghtml https://g1.globo.com/mundo/noticia/2019/06/16/apagao-deixa-m... "deixou sem energia toda a Argentina, Uruguai, Paraguai e sul do Brasil", so Paraguay was also affected. Paraguay shares the huge Itaipu dam with Brazil, and a large amount of power in Brazil comes from the Itaipu dam, so if Paraguay was affected, Brazil (mostly the south and southwest) will probably also be affected.
edit: the realtime graphs at http://www.ons.org.br/pt/paginas/energia-agora/carga-e-geracao http://www.ons.org.br/pt/paginas/energia-agora/carga-e-gerac... show a loss of around 1.3 GW of hydroelectric generation in the south region starting around 7:00 and ending around 10:00, matching the timing of the blackout.
- paulvs 7y agoAccording to Paraguayan news [1] (Spanish), the failure was on the Argentina side of the Yacyretá hydroelectric (which is shared by Argentina and Paraguay), not at the plant itself. Only a few Paraguayan towns close to the hydroelectric itself were affected, while Argentina and countries it resells electricity to were out of power.
- davps 7y agoI can confirm, at Paraguay, only two small towns (Pilar y Ayolas) where affected and for a short period of time. Source: I live at Paraguay.
- paulvs 7y agoNice to see Paraguay present here on HN, I live here in Asunción. I also heard of some people near Luque without power Sunday and Monday, but I'd guess it was an unrelated ANDE incident.