noun, masculine/apaˈɡon/plural: apagones
apagón is masculine in Spanish.
blackout, power cut, brownout, power outage (an interruption in the supply of electricity); blackout (an instance of censorship, especially a temporary one); blackout, shutdown
“ERCOT ha puntualizado que si bien los hielos han apagado algunas turbinas eólicas, ese ha sido el factor “menos significativo” en los apagones.” — ERCOT has specified that although the ice has stopped some wind turbines, that has been the “least significant” factor in the blackouts.
From apagar + -ón.