Cuba Blackouts: Crumbling Grid, Renewable Energy Lag, and Widespread Outages

A‍ combination of inadequate investment, ⁤substandard fuel, and deferred maintenance has plunged Cuba into a ​severe energy crisis, marked by frequent and prolonged blackouts. The island nation’s aging thermal power plants, the ⁣backbone of its electricity system, are increasingly unreliable due to fuel ‌shortages and corrosion.

The 330-megawatt⁢ Antonio Guiteras plant in matanzas, one of Cuba’s largest, frequently breaks down because of a lack of replacement parts. Adverse events, such as the 2022 fires at the Lidio Ramón Pérez (Felton) and Máximo Gómez (Mariel) thermal plants, have further strained the ​system. During the first five months of 2025, only 34 percent of Cuba’s power plant capacity was available on an⁤ average daily basis, based ‍on 2023 numbers.

Cuba’s reliance on poor-quality,sulfur-rich domestic crude oil has accelerated wear and tear on power plants,leading to frequent and⁤ costly outages. While Venezuela has been ⁤a key ‌oil ‌supplier as 2000, ‌its economic problems⁤ have made these shipments less reliable.

To compensate, Cuba began renting floating thermal power plants from countries like turkey in 2019. By⁣ 2023, eight such ​ships were stationed in Mariel Bay,‍ Havana Bay, and Santiago de Cuba Bay.‌ However, the government’s inability ​to pay leasing prices led to their withdrawal, removing hundreds of megawatts from ⁢the grid.

Cuba possesses important untapped renewable energy resources, including solar, wind, and ⁣sugarcane biomass.However, the transition to renewable energy has ‍been ‍slow,‍ hampered by bureaucratic hurdles and funding shortages. The instability of the grid also makes integrating large-scale renewable energy installations challenging.

critics point to the Cuban government’s investment priorities, noting that between 2010 and 2024, about 32 percent⁣ of total investment went to tourism-related infrastructure, while only ⁣12 percent was allocated to ⁤energy infrastructure, according to Cuba’s National Statistics Office.

The country’s struggling economy, exacerbated by U.S. sanctions, limits its ability to import fuel, acquire spare parts, access technology, and attract foreign investment for energy infrastructure upgrades.

The government announces anticipated electricity generation shortfalls each morning, and provincial leaders determine which communities will face outages, ⁤sometimes‍ lasting ‌over 24 hours.⁢ Havana is partially‍ shielded due to its political ‌and economic importance, causing resentment in other areas.

Blackouts disrupt basic‍ services, economies, and daily life. Food spoils, businesses close, students struggle to study, and internet connectivity becomes less⁢ reliable.

The Cuban government ‌has recovery plans that include thermal plant maintenance, new capacity, solar energy,‌ and securing fuel supplies. However, progress is⁢ slow due to the same underlying problems.

Policies encourage rooftop solar, and small solar parks are being built, reaching 298 MW ⁢of solar capacity by the end of ⁤2024. ​Pilot wind farm projects are also underway.

The government aims to ⁢derive 37 percent ‍of its energy from renewable sources by 2030, but has only reached 3 percent so far. Cuba is seeking international partnerships, including with Russia for modernizing thermal facilities‌ and China for building up to 2,000 MW⁤ of solar capacity across 92‍ solar parks.

As the power grid fails, Cubans are installing generators and solar systems. A farmers’ ⁢cooperative in Artemisa, for example, powers its facilities this way.⁣ However,these solutions are limited by high ⁤costs.

The complete changes required for long-term recovery are beyond the‍ island’s current capabilities, leaving⁣ Cubans to constantly face the threat of the next blackout.