Chile Completes Massive $1.3B Solar-Storage Hub in Desert

A decade of patient planning just paid off in the Atacama Desert, where Chile officially opened the Andes Solar Hub, a clean energy powerhouse that can store sunshine for later.

The facility combines 692 megawatts of solar panels with 510 megawatts of battery storage, enough to power a city the size of Austin, Texas. What makes this special is that the batteries solve solar power's biggest challenge: they keep electricity flowing long after sunset.

AES Andes completed the final piece in April when Andes Solar III came online with 171 megawatts of solar generation and matching battery capacity. The batteries can discharge for three hours, providing reliable electricity during evening peak demand when families come home and turn on lights and appliances.

The project sits 9,200 feet above sea level in Chile's northern Antofagasta region, one of the sunniest places on Earth. Over $1.3 billion in investment transformed nearly 3,000 acres of high-altitude desert into a renewable energy complex that began with a single solar farm in 2014.

Engineers built the hub in stages, adding capacity year by year. One section uses innovative Maverick technology from Australia, featuring prefabricated modules that snap together like building blocks, cutting installation time dramatically.

The Ripple Effect

Chile now has over 27,000 megawatts of renewable energy installed nationwide, with more than a third sitting on government land in the sunny northern regions. The country collects revenue from land leases and sends 65% directly back to regional governments for local projects.

The facility connects to InterAndes, the electrical link between Chile and Argentina, meaning clean power can flow across borders when needed. This kind of international cooperation helps both countries balance their grids with renewable energy.

Chile's government plans to auction 32 more state-owned properties in northern regions by late 2026, opening the door for similar projects. As battery technology improves and costs drop, solar-plus-storage facilities like this one prove that renewable energy can provide the same reliability as traditional power plants without the emissions.

The Andes Solar Hub stands as proof that patient, strategic investment in clean energy infrastructure pays off with decades of carbon-free electricity.