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Cuba Dispatch
26JUL

Refinery restart cuts grid deficit to 1,395 MW

4 min read
10:44UTC

Camilo Cienfuegos came back online on Friday 17 April after roughly four months down, processing the Anatoly Kolodkin crude into 337-367 MW of restored evening capacity by 26 April.

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PoliticsDeveloping
Key takeaway

The 337-367 MW grid improvement was bought by Russian crude the administration's sanctions architecture nominally forbids.

UNE, Cuba's state grid operator (Unión Eléctrica Nacional), forecast a peak deficit of 1,365 to 1,395 MW for Sunday 26 April 2026 against demand of 3,100 MW. The shortfall sits 337 to 367 MW below the 1,732 MW deficit recorded on 15 April . The Camilo Cienfuegos refinery in Cienfuegos province restarted on Friday 17 April after roughly four months offline, routing the Anatoly Kolodkin crude delivered on 31 March into the grid. Energy Minister Vicente de la O Levy said publicly that "with just this ship, we only have fuel until the end of April".

The arithmetic of Cuban resupply has tightened to a single dependency. The thermal fleet needs roughly eight fuel cargoes a month at design tempo; between December 2025 and April 2026 it received one, meeting roughly 13 per cent of stated need. The PDVSA Cuba carve-out from 18 March walled off Venezuelan crude from the state oil entity, leaving Russian Sovcomflot deliveries as the island's last active supply line. The next cargo is the Universal, the Sovcomflot tanker expected at Matanzas on Wednesday 29 April under the cover of OFAC General Licence 134B.

Without that wind-down licence, every port operator, insurer and payment intermediary handling the Universal would face secondary-tariff exposure under EO 14380 . Treasury chose the operational track instead, narrowing its own architecture to keep the supply chain legal in May.

Camilo Cienfuegos was down for four months because Cuba had no crude to refine; its return depends on the Universal arriving on time and discharging. Renewable photovoltaic at 641 MW peak midday is now visible in UNE bulletins but cannot fill the evening hole that drove the 26 April deficit. De la O Levy's end-of-April fuel exhaustion signal makes the Universal a politically dated event with measurable consequences if it slips.

Deep Analysis

In plain English

Cuba has an oil refinery in the province of Cienfuegos that turns crude oil into the heavy fuel oil that runs the power stations. That refinery had been shut down for about four months, which is one reason the blackouts had been so severe. On 17 April it restarted, using oil delivered by a Russian tanker at the end of March. The restart cut the amount of power the grid was short by about 20 per cent, which is why Havana got four days without blackouts. But Cuba's Energy Minister said the fuel from that delivery only lasts until the end of April. The next Russian tanker, the Universal, needs to arrive and unload around 29 April for the power to stay on.

Deep Analysis
Root Causes

Cuba's thermal generating fleet runs on residual fuel oil, a heavy refinery product that the Camilo Cienfuegos plant produces from crude feedstock. The island has no significant domestic crude reserves and no alternative thermal feedstock.

When the refinery is offline, the grid runs on whatever residual oil stockpiles remain from prior deliveries; those stockpiles exhausted in roughly 12 days after the previous Kolodkin cargo was processed. The grid deficit then becomes a direct function of the refinery restart date.

The four-month offline period reflects the structural condition that Cuba's Soviet-era refineries require periodic catalytic reformer regenerations and heat-exchanger cleaning cycles that need specialist equipment and chemicals unavailable under the sanctions environment.

What could happen next?
  • Risk

    The Camilo Cienfuegos refinery's sustained operation is wholly contingent on monthly Sovcomflot deliveries. A single delayed cargo, whether through US enforcement or logistics failure, shuts the refinery and restores the pre-17 April deficit within roughly 12 days.

    Short term · 0.85
  • Consequence

    Cuba's grid improvement is entirely attributable to the Russian crude route that EO 14380 nominally prohibits, making any genuine enforcement of EO 14380's secondary tariffs against Sovcomflot directly measurable in UNE deficit figures.

    Short term · 0.9
  • Risk

    The refinery's four-month maintenance backlog is not resolved by a single restart; structural catalyst and heat-exchanger deficits from the sanctions environment mean the plant operates below design efficiency and faces a higher unplanned-outage probability than normal.

    Medium term · 0.7
Sources:Unión Eléctrica Nacional·CiberCuba
Mentions:Center for Strategic and International Studies →Havana →Mexico →Moscow →Russian LNG short-term contract ban →General License 134B →EO 14380 →Russia →Urals →OFAC →Time →Universal →Camilo Cienfuegos refinery →UNE →PDVSA →Sovcomflot →Anatoly Kolodkin →Cuba →Matanzas →Vicente de la O Levy →
First Reported In

Update #2 · Two Cuba policies, one fortnight

Unión Eléctrica Nacional· 27 Apr 2026
Read original →
Causes and effects
Caused by
Russian tanker lands 730,000 barrels at Havana
The Anatoly Kolodkin crude delivery on 31 March was the feedstock refined at Camilo Cienfuegos from 17 April, directly producing the grid deficit improvement
Occurred 31 Mar 2026
Read story →
UNE forecasts 1,732 MW blackout at evening peak
The 26 April UNE deficit of 1,365-1,395 MW is measured against the 1,732 MW baseline of 15 April, showing a 337-367 MW improvement
Occurred 15 Apr 2026
Read story →
This Event
Refinery restart cuts grid deficit to 1,395 MW
The improvement was bought entirely by Russian crude that EO 14380 nominally forbids; Energy Minister de la O Levy says the supply lasts only to the end of April.
Led to
Guiteras fails again, deficit hits 1,680 MW
The Guiteras failure on 5 May reverses the partial grid recovery achieved by the Camilo Cienfuegos restart on 17 April, pushing the deficit back above its April baseline.
Occurred 5 May 2026
Read story →
Different Perspectives
Spain (Foreign Ministry and hotel investors)
Spain (Foreign Ministry and hotel investors)
Madrid has worked to shield Spanish hotel operators exposed to Cuba, and OFAC's General Licences 2 and 3 winding down the Guernsey-listed CEIBA Investments fund give those investors a defined exit rather than an abrupt block. Spain's stake in managing an orderly wind-down, not confronting the designation itself, keeps it distinct from Havana's collective-punishment framing.
Cuban Ministry of Foreign Affairs (MINREX)
Cuban Ministry of Foreign Affairs (MINREX)
Foreign Minister Bruno Rodriguez Parrilla called the 23 July designations "castigo colectivo" and defended the medical missions as protecting healthcare access for patients in the countries where Cuban doctors serve, without addressing the evasion allegation against Coral Maritima directly.
US Treasury (OFAC) and State Department
US Treasury (OFAC) and State Department
OFAC designated Cuba's medical-missions operators and named the Mariel-Coral Maritima transfer as GAESA sanctions evasion on 23 July, characterisations Washington has not independently substantiated in public documents reviewed. The administration frames the wave as closing hard-currency channels sector by sector, following the same pattern applied to tourism and financial clearing in June and July.
Human rights monitors (OCDH and Prisoners Defenders)
Human rights monitors (OCDH and Prisoners Defenders)
OCDH's 14 July dictamen named the specific offices responsible for holding Otero Alcántara past his sentence-expiry date; Prisoners Defenders counted 1,306 political prisoners, including 40 detained minors, on 9 July. Both oppose the Cuban government's account without endorsing Washington's sanctions instrument as a remedy.
US State Department
US State Department
Secretary Rubio said Cuba 'continues to ally itself with America's enemies' and framed the 13 July designations as deploying 'every tool at our disposal', now citing forced-labour export to Angola for the first time. These quotes rest on cached web snippets; state.gov was unreachable this run and could not be directly verified.
Cuban Ministry of Foreign Affairs
Cuban Ministry of Foreign Affairs
Foreign Minister Bruno Rodríguez Parrilla called the 13 July designation package 'criminal and genocidal' and said 'Cuba is not a threat and US intelligence agencies know it'. State media frame the 16 July gas-price rise as a direct consequence of the intensifying blockade, though Havana has not disclosed its own container-import shift dated 3 July.