Chile Builds Mega Battery to Store Solar and Wind Power

A new battery system in Chile's Antofagasta Region will store clean energy like never before, helping the country move away from polluting power plants while keeping the lights on 24/7.

Enel Green Power Chile broke ground on the Azabache BESS battery project, which will store 372 megawatt hours of electricity generated from both solar panels and wind turbines at the same location. The battery can hold enough power to supply 94 megawatts to the grid, roughly equivalent to powering tens of thousands of homes.

Here's why that matters: solar panels only generate electricity during sunny days, and wind turbines need wind to spin. This battery solves that problem by saving excess clean energy and releasing it exactly when people need it most, like during evening peak hours or cloudy days.

The system will store about 136 gigawatt hours annually, which equals 10% of what one of Chile's largest hydroelectric dams can hold. That's a remarkable achievement for a battery installation, showing how far energy storage technology has advanced.

The project combines three clean technologies at one site: 36 megawatts of wind power, 58 megawatts of solar power, and the massive battery to tie them together. This hybrid approach maximizes the use of available land while creating a more dependable renewable energy source.

The Ripple Effect

Battery systems like Azabache BESS help entire communities benefit from cleaner air and more stable electricity prices. By storing renewable energy and releasing it during high-demand periods, these batteries reduce the need to fire up expensive, polluting fossil fuel plants as backup power.

The project also brings local benefits beyond clean energy. Enel Green Power committed to training programs that develop local workers during construction, plus educational initiatives celebrating the heritage and culture of nearby Calama.

This isn't Chile's only big battery project. The company started building another system called BESS Las Salinas in November 2025, also in the Antofagasta region, signaling Chile's serious commitment to reliable renewable energy infrastructure.

The battery technology addresses one of renewable energy's biggest challenges: making clean power available around the clock, not just when nature cooperates. As countries worldwide work to eliminate greenhouse gas emissions, large scale battery storage becomes essential for keeping the grid stable and dependable.

Chile's push toward hybrid renewable plants with integrated storage shows how clean energy is maturing from an intermittent alternative to a reliable foundation for modern electricity grids.