Mexico City’s new $11 billion international airport, expected to open in 2019 and eventually become Latin America’s largest airport, will be covered with a solar roof that will maximize the penetration of light and partly power the terminal.

Meanwhile, in Chile a 100-megawatt solar power facility to be completed next year will supply 60 percent of the power to Santiago’s underground railway network—the second largest subway in Latin America, serving more than 2.2 million passengers a day. It will be the first public transportation system in the world to run mostly on solar energy.