In December 2025, electricity generation in LAC reached 153 TWh, with a year-on-year growth of 2.7% and a monthly increase of 1.3%. The generation mix remained predominantly renewable, led by hydropower (43.9%), although conditioned by hydrological variability. Natural gas (22.8%) consolidated its role as the main backup source due to its operational flexibility, while wind (12.1%) and solar (5.1%) continued to expand. Fossil fuels such as oil (6.7%) and coal (2.8%) maintained a complementary role, particularly in isolated systems or for energy security. To a lesser extent, bioenergy (3.8%), nuclear (2.3%), and geothermal (0.5%) contributed depending on resource availability and country-specific conditions.
The regional renewability index for this month was around 65%, fluctuating throughout the year between 63% and 73%. The level of regional renewability during the analyzed period is strongly influenced by electricity systems with a high share of clean energy. Paraguay, Venezuela, Colombia, Costa Rica, and Ecuador stand out for their strong hydropower component, exceeding 70%, while Uruguay has a significant share of wind power. In this context, out of the 27 OLADE member countries, 12 exceeded the regional renewability index, highlighting the marked heterogeneity of electricity generation mixes across the region.
