OMNI Features｜U.S. Oil Blockade Deepens Cuba's Energy Crisis as China-Funded Solar Expansion Accelerates

Cuba is facing one of its worst energy crises in decades as tightening US pressure on oil exports severely disrupts the island's fuel supplies. Oil remains the backbone of Cuba's electricity system, with most fuel imported from abroad. Historically reliant on Soviet oil and later Venezuelan crude under a medical-for-oil exchange agreement, Cuba saw its energy lifeline sharply curtailed after Washington moved to restrict Venezuelan supply routes earlier this year. Additional U.S. tariff threats also discouraged alternative suppliers such as Mexico, further tightening the country's access to imported fuel.

The collapse in oil inflows has had immediate and severe consequences for the country's aging power infrastructure. In March alone, Cuba suffered three nationwide blackouts affecting roughly 10 million residents. Hospitals were forced to scale back surgeries, waste collection systems deteriorated, and many households resorted to burning wood for cooking. Analysts say the repeated grid failures reflect not only short-term fuel shortages but also decades of underinvestment in thermal power facilities heavily dependent on imported oil and diesel.

Cuba has accelerated an aggressive push into renewable energy, largely driven by Chinese investment and equipment exports. According to energy think tank Ember, Cuban imports of Chinese solar panels and battery systems surged more than 1,800% between 2020 and 2025. China exported only around US$3 million worth of solar panels to Cuba in 2023, but that figure climbed sharply to US$117 million by 2025, underscoring the rapid pace of deployment despite the country's economic distress.

A cornerstone of the transition is a bilateral agreement with China to develop 92 solar parks nationwide by 2028. The initiative is expected to add approximately 2 GW of solar capacity, theoretically enough to supply electricity to more than 1.5 million homes. Since early 2025, Cuba has already installed nearly 1 gigawatt of solar power capacity, lifting renewable energy’s share in the national electricity mix from roughly 3% in 2024 to about 10% today. Cuban authorities aim to increase that figure to at least 24% by 2030.

Energy experts argue that reducing dependence on imported oil could weaken one of the United States' most effective sources of economic leverage over Havana. Solar power offers structural advantages for Cuba because installation costs have fallen sharply in recent years, while operational expenses remain relatively low once infrastructure is deployed. Analysts also note that China's growing role in Cuba's energy sector strengthens Beijing's geopolitical influence across Latin America while positioning Chinese clean-energy manufacturers in emerging markets.

However, major obstacles remain before renewable energy can meaningfully replace oil-based generation at scale. Cuba's solar facilities are still relatively small and geographically fragmented, while the country lacks sufficient utility-scale battery storage to stabilize electricity supply during nighttime peak demand. Financial constraints present an even greater challenge. A recent analysis estimated that transforming Cuba's electricity system to generate 93% of power from renewables would require approximately US$8 billion, while achieving a fully renewable grid could cost as much as US$19 billion.

Despite the rapid expansion of solar capacity, most Cubans have yet to experience tangible improvements in daily life. Rolling blackouts remain widespread, and many households cannot afford private solar equipment amid the country's broader economic collapse. Experts therefore caution that while renewable energy will likely become an increasingly important part of Cuba's future energy mix, the immediate priority for ordinary citizens remains simple and urgent: securing a stable electricity supply, regardless of whether it comes from oil-fired plants or renewable sources.

Reference: CNN