Guantánamo.- Disconnection of the National Power System (SEN) from Matanzas to Guantánamo at 13: 57 hours.
The partial grid failure was caused by the tripping of a section of the 220 kV Matanzas–Cienfuegos transmission line. At this time, the national power system is completely disconnected.
Source: Facebook Profile Empresa Eléctrica Guantánamo
