Restricting investments in generating capacity to sources that offer the best financial return at a given moment has long-term implications for the country’s energy security and for the value chain of technologies that are momentarily ignored. For this reason, the governments of Brazil and Uruguay, for example, are considering specific measures to support biomass, which is in danger of extinction owing to the recent success of wind power. Apart from policies that promote efficient electricity use, the most important measures in this regard will seek to replace the most polluting generating sources by cleaner alternatives and, where possible, by renewable energies.