With over a decade in renewable energy systems, EK SOLAR specializes in turnkey storage solutions for commercial and industrial clients. Our modular designs adapt to Havana's tropical climate, ensuring 20% longer battery life compared to industry standards. Looking for a quote? Reach. Cuba i is the largest island in the Caribbean Sea, with a 109,884 km2 territory and 11. Energy production, particularly power generation and its sustained growth, constitutes an indispensable element for the country's economic and social growth. How much energy does Cuba produce? Oil and natural gas provide roughly 80% of Cuba's total energy. Meta Description: Explore Havana's leading energy storage power supply factories, their innovations, and market impact.