Cuba faces third nationwide blackout in 2026, 10 million left without power

Cuba has experienced its third nationwide power outage since the beginning of 2026, leaving around 10 million people without electricity. Microgrids across the country have been activated to maintain critical infrastructure. The cause of the failure is currently unknown, but the energy supply situation has worsened following an accident at a power substation in Havana on the evening of July 3. Many homes have been without power for several days, and water supply issues have emerged as pumps cannot operate without electricity. The situation is exacerbated by hot weather.