On Friday, Cuban President Miguel Diaz-Canel provided an update on his country’s energy situation with a figure that summarizes the magnitude of the crisis caused by the U.S. oil blockade.
“It has been more than three months since any fuel ship has arrived in our country. We are working under very adverse conditions that have an immeasurable impact on the lives of all our people,” he warned, adding that his administration is implementing measures to respond to a prolonged blockade.
Regarding the chain of blackouts that have occurred in recent days, Diaz-Canel offered a technical explanation that places the crisis in its structural context.
During the day, Cuba generates electricity with photovoltaic solar energy–which covers between 49% and 51% of demand during hours of highest irradiation–and with associated gas from domestic crude oil extraction. At night, however, the national energy system depends exclusively on thermoelectric plants and gas.
BREAKING NEWS: A massive fire has erupted at Cuba’s largest oil refinery in Havana.
This is happening at the same time the U.S. is economically terrorizing Cuba by blocking all oil from entering the country.
This has CIA sabotage written all over it.pic.twitter.com/SsiiE1Qfsj
— Power to the People ☭🕊 (@ProudSocialist) February 14, 2026
Until last week, Cuba had reserves of diesel and fuel oil in two facilities used for distributed generation: the Moa engines and the Mariel engines. After three months without fuel imports, those reserves have been exhausted.
“The generation system stopped providing a considerable number of megawatts that we used during peak hours and at night,” the Cuban president explained, indicating that this destabilized the frequency of the national electric power system and triggered blackouts.
“Fuel is needed for thermoelectric plants to start up and synchronize with each other,” Diaz-Canel said, noting that Cuba managed to overcome a total blackout but the national system remains on the verge of another collapse due to the availability of only minimal fuel reserves.
He also revealed another figure that summarizes the current energy problem: Cuba has more than 1,400 megawatts of recovered distributed generation available and ready to operate but inactive because of the absence of fuel.
“If we had fuel available, we would have an additional 1,400 MW for electricity supply at night,” he said, noting that the installed capacity would make it possible to reduce the nighttime energy deficit by up to 700 MW, which would be enough to lessen the impact on the population.
Mexico confirms oil shipments to Cuba are currently stopped under US pressure — but President Sheinbaum says Mexico is taking "all diplomatic actions" to resume them
"It is very unjust. You cannot strangle a people like this. They don't have fuel for hospitals, for schools." pic.twitter.com/oGZzDjhxOs
— COMBATE |🇵🇷 (@upholdreality) February 9, 2026
Instability in the frequency of energy supply also creates a chain effect that explains why blackouts exceed planned levels. This occurs because when a substation experiences problems, several circuits fail simultaneously.
“People criticize us because we are not able to fix the blackout. However, what happens is that the blackout increases due to situations that were not planned,” Diaz-Canel said, noting that energy instability forces authorities to modulate the daytime connection of photovoltaic parks in order to regulate the system’s frequency.
“We cannot take advantage of the full power generated by photovoltaic parks because we must regulate–with more or less connection–the frequency of the national electric power system to avoid another blackout,” he said.
Despite all the restrictions Cuba is facing, authorities have managed to introduce a new mechanism that allows solar energy to be used to regulate system frequency under unstable conditions and reduce the risk of total outages. On Monday, government ministers will explain the technical details of that new mechanism.
#CUBA | First Secretary of the Central Committee of the Communist Party and President of the Republic Diaz-Canel announces Cuban officials have recently held talks with representatives of the #Unitedstates government#teleSUREnglish pic.twitter.com/s5d29LCImE
— teleSUR English (@telesurenglish) March 13, 2026
Sources: Cuban goverment
