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Grid infrastructureCubaEIR-1503

Fire at Tallapiedra substation causes blackout in Havana

Apr 2025Published 28 Sept 2026Responsible editor: Chief Editor

SignificantElectricalProvisional
Estimated damageEstimated by the register's adjusterHow? Know the real figure?
Figure hidden: shown to subscribersLow confidence
supply cut for about •• daysShown in the record →Full estimate
From the recordRoot cause hidden
Where
Tallapiedra electrical substation, Salud Street, Havana
Operator
Electric Company of Havana
What
Fire in underground substation
Cause
Not reported

Companies named in the reporting of this entry (being named is not a finding of fault): Electric Company of Havana

What happened

A fire at the Tallapiedra electrical substation on Salud Street in Havana cut power to several districts, including Old Havana, Centro Habana, Cerro, 10 de Octubre and Plaza. The substation is underground. The Electric Company of Havana said the fault was caused by the fire and that it was working to restore supply. The same report said that, at that point, 30.5 per cent of Havana demand was being met, with 57 circuits connected for 117.53 MW. The cause of the fire was not reported.

Lessons learned

  1. A fire in an underground substation can interrupt supply across several districts at once, so operators need a tested plan to isolate the fault and restore neighbouring circuits.
  2. Customer notices should name the affected districts and the substation, and say that restoration is under way.
  3. Circuit counts and demand met during restoration should be recorded so the scale of the outage is clear.

More lessons on electrical protection and isolation, outages, backup supply and restoration, from every incident on the register.

Not yet known

  • Cause of the fire
  • When supply was fully restored
  • Any injuries reported

This entry is updated when these are reported. Get an alert for the next one like it.

Source

en.cibercuba.com

Published 2026-09-28. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.

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Chart to reuse with this story: Grid infrastructure incidents in Cuba, by year, free with a credit (PNG).

Grid infrastructure incidents in Cuba: 9 entries, with a free alert for the next one.

Substation and transformer fires: the counts, the latest entries and a free alert for the next one.

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