Increasing blackouts in France and Europe are linked to intense heatwaves. A blackout in Paris during June's heatwave affected thousands, along with other regions in France. Heatwaves have also caused prolonged blackouts in Sicily. High temperatures lead to rising tarmac temperatures, straining underground power networks. Enedis has been modernizing the power grid for the past 16 years to enhance resilience against heat. In Paris, the city is replacing underground electricity cables with heat-resistant ones to prevent future outages.
Very high temperatures over several days with temperatures that do not drop at night cause the temperature of the tarmac to rise by several dozen degrees (on the surface), which put severe strain on the underground networks.
A blackout that struck the heart of Paris at the height of June's heatwave was caused by high temperatures, according to supplier Enedis.
Enedis has been undertaking a major modernisation programme to replace older cables that are vulnerable to high temperatures for the past 16 years, and make the entire national grid more resilient.
The city of Paris is in the middle of a massive project to replace its underground electricity cables with heat-resistant ones, after an emergency planning exercise designed to test the city's readiness for the day the temperature hits 50C revealed a major risk.
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