The historical downspout of the Paraná River has led Yacyretá, Argentina's biggest hydroelectric plant, to work at around 50% of its normal capacity, which has a direct impact on supply to the electrical system.
Brazil reminded Paraguay it can use the power it needs from the giant Itaipu hydro but there is a contract which regulates how to manage the surplus. A day earlier president Federico Franco said that Paraguay would not “yield” any more electricity to Brazil.