Wind and solar photovoltaic energy have grown rapidly in Latin America and the Caribbean (LAC), emerging as the great promise for confronting the climate crisis, reducing dependence on fossil fuels, and reaching isolated areas where conventional generation cannot reach. Our region is committed to reducing CO2 emissions, despite having a relatively clean electricity mix. However, as non-conventional renewable energy sources increase their share in power grids, new challenges also emerge for the planning, operation, and control of power systems, topics that are rarely discussed outside specialized circles. How can grid stability be maintained in scenarios of high generation variability? What strategies make it possible to take advantage of surplus solar generation during periods of low demand? To what extent can existing grids absorb renewable energy without profound transformations to their infrastructure? This article seeks to answer these questions from a clear and accessible perspective. Our objective is to analyze the main technical aspects associated with the growing integration of renewable energy into power systems and how engineering, innovation, and planning seek to address them. Understanding these technical challenges not only makes it possible to better appreciate the progress achieved, but also to understand the transformations necessary to build a sustainable energy future.
