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AES Andes Drops Plan for INNA Near Chile’s Paranal After Astronomy Uproar

Formal cancellation awaits withdrawal from Chile’s environmental review system.

Overview

  • AES Andes said on January 23 it would desist from executing the multi-billion-dollar INNA complex and refocus on other renewable and storage projects.
  • The European Southern Observatory welcomed the move, calling the planned location a major threat to dark, clear skies and to facilities such as the Very Large Telescope and the upcoming Extremely Large Telescope.
  • ESO analyses projected at least a 35% increase in light pollution over Paranal along with added atmospheric turbulence, dust and micro-vibrations that would degrade observations.
  • The proposal spanned about 3,000 hectares in the Atacama to generate solar and wind power and produce green hydrogen and ammonia near world-class observatories.
  • Astronomers who campaigned against INNA, joined by political voices including president-elect José Antonio Kast, are now pressing for legislation to protect Chile’s observatory sites.