Causes of Power Outages Infrastructure Issues Causes Emergency Response Infrastructure Damage Utility Companies National Blackouts Cuban Power Grid Maintenance Work Public Safety Power Shut-offs Utility Response Impact on Services Restoration Efforts Impact on Events Infrastructure Regional Outages Impact on Businesses Weather Impact Infrastructure Failure Emergency Generators Causes of Outages Iberian Peninsula Economic Consequences Electricity Disruptions Due to Weather Events Duke Energy Restoration Process Scheduled Outages Heat Wave Cuba
Transit officials attribute the outage to heat-related stress on aging substations with a state of emergency prompting a full system review.