Five South American countries are seeking to interconnect their energy systems in search of better regional integration.
Ministers from Chile, Peru, Colombia, Ecuador and Bolivia are expected to meet in Santiago in September to discuss regulatory developments.
Discussions will also be dedicated to reviewing progress and to defining a framework to ensure that the union can be achieved by 2021.
A 2013 study by the Inter-American Development Bank (IDB) sought to advance electricity integration in the region and establish the investment required for this initiative.
Among other things, it showed that there were electrical links between Colombia and Ecuador, and between Peru and Ecuador.