Prime minister Manuel Marrero declared an "energy emergency" on Thursday following months of lengthy blackouts.

Government implements emergency measures Friday to slash demand

HAVANA (AP) — A massive outage left millions of Cubans without power and prompted the government Friday to implement emergency measures to slash demand, including suspending classes, shutting down some state-owned workplaces and canceling non-essential services.

Cuba was plunged into a nationwide blackout on Friday after the island's biggest power plant failed, the energy ministry said, coming on the heels of weeks of extended outages across the economically devastated country. "The system was left without power nationwide" after the unexpected shutdown of the Antonio Guiteras power…

The Cuban government had just announced emergency measures to reduce electricity use — then the power went out across the entire nation.

(Bloomberg) — Electricity went out across the entirety of Cuba after the island’s main power plant failed and the government throttled key industries in an effort to save fuel.

The country attempted to conserve energy earlier Friday by shuttering schools and state-operated facilities.