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Unión Eléctrica (UNE)
aka UNE, Unión Eléctrica
National electric utility under the Ministry of Energy and Mines. Owns the thermoelectric fleet, the China-backed solar program and wind farms. State-owned and embargo-restricted, though not itself on the CRL/SDN.
Assets controlled (13)
Antonio Guiteras Thermoelectric Plant
Deeply distressed; no overhaul since 2010, with recurrent 2026 boiler/economizer and superheater failures driving frequent SEN trips and blackouts. UNE and MINEM now plan a shorter ~25–30-day maintenance outage, down from the earlier ~180-day halt, though
Lidio Ramón Pérez 'Felton' Power Plant
Major repowering candidate
China-Backed National Solar Program
Battery storage is the bottleneck — open to financing/EPC/O&M/BESS
La Herradura Wind Farms
Cuba has 21 idle high-potential wind zones
Cuban Electric Company (national grid)
Confiscated 1960; #1 certified claim
CTE Máximo Gómez (Mariel)
Severely degraded 2025-2026. A 2022 fire knocked out Units 6-7 (~170 MW); Unit 6 returned then went offline again Sept 2025 on oil contamination and pump faults. Chronic outages. Opportunity: full retrofit/repowering.
CTE Ernesto Guevara (Santa Cruz del Norte)
One of the larger western plants, plagued by frequent unit trips through 2025-2026. Burns national crude via pipeline (lower fuel-transport cost). Opportunity: unit overhaul/repowering.
CTE Carlos Manuel de Céspedes (Cienfuegos)
Repeatedly down through 2025: Unit 3 tripped on a boiler leak then a condenser fault; Unit 4 under maintenance. Long repair cycles add to the national deficit. Opportunity: boiler/condenser rehabilitation.
CTE Antonio Maceo (Renté)
Critically aged (in service since the late 1960s). Frequent furnace leaks and vacuum/feed-water faults caused eastern-Cuba blackouts through 2025-2026. Opportunity: comprehensive rehabilitation or replacement.
CTE Diez de Octubre (Nuevitas)
Operating but unreliable — a boiler caught fire Dec 2025; multiple unit trips through 2025-2026. Major contributor to the central-Cuba deficit. Opportunity: boiler replacement/modernization.
CTE Otto Parellada (Tallapiedra)
Small, very old urban plant on Havana Bay; a 64 MW unit (1972) ran until ~2024, intermittently feeding ~45 MW. Site sits on the historic Havana grid tied to the confiscated Cuban Electric Company — see /claims. Opportunity: limited; value mainly as urban land/peaker.
Energas Boca de Jaruco (Sherritt JV)
Among Cuba's cheapest, cleanest power — burns associated gas from oil production. Energas supplies ~8-10% of national generation but faces gas-supply/maintenance constraints. Opportunity: gas-capture expansion, though the JV slot is held by Sherritt.
Karpowership Floating Powerships (Cuba fleet)
Highly volatile — at peak (2023-24) up to 8 Turkish barges off Havana, Mariel and Santiago supplied ~a quarter of Cuba's power. Most departed by May 2025 over unpaid fuel/operating costs; one returned to Havana April 2026. Opportunity is large but financing is the bottleneck.