Cuba plans to increase the share of renewable energy sources in its energy mix from the current 4% to 17% by the end of 2026, according to a speech made by Ramses Montes, Director of National Energy Policy and Strategy at the Cuban Ministry of Energy and Mines (MINEM), at the. Cuba plans to increase the share of renewable energy sources in its energy mix from the current 4% to 17% by the end of 2026, according to a speech made by Ramses Montes, Director of National Energy Policy and Strategy at the Cuban Ministry of Energy and Mines (MINEM), at the. Over the last decades Cuba has been remarkably successful at revitalizing its energy sector by significantly increasing efficiency and reducing energy intensity and emissions. These achievements, made through a comprehensive approach targeting infrastructure, consumption habits and. SpringerBriefs in Energy presents concise summaries of cutting-edge research and practical applications in all aspects of Energy. Featuring compact volumes of 50 to 125 pages, the series covers a range of content from professional to academic. Aging oil-fired power plants, chronic blackouts, and restricted access to fuel—tightened by United States sanctions—have pushed the island's electricity.