A new heatwave is challenging the stability of the national power grid. The weather poses multiple threats, extending beyond simply increased energy demand. Extreme heat degrades the performance of power plants and grid components, accelerating infrastructure aging. This dramatically alters how the power system functions overall. Rising temperatures not only cause higher consumption but also impact the efficiency of energy production and distribution networks. These combined effects put considerable strain on the entire electricity system, raising concerns about potential disruptions and the need for grid modernization to cope with increasingly frequent and intense weather events.