Cuba's Ministry of Energy and Mines reported a significant power outage caused by issues at the Diezmero substation in Havana, affecting the National Electric System. The blackout led to dark streets and disrupted internet service across various provinces. The Electric Union indicated a peak-hour demand deficit of 1,380 megawatts. Frequent outages are attributed to fuel shortages and aging infrastructure, prompting authorities to initiate photovoltaic park installations. Previous blackouts have led to anti-government protests. Teljes cikk (Euronews.com)