AES Andes – the Chile-based arm of US powerhouse AES Corporation – has shocked the industry by pulling the plug on its ambitious US$10 billion INNA green hydrogen and green ammonia plant in Chile’s Atacama Desert. They’re wrapping up the 215 MW Andes Solar III farm and the 200 MW Bolero BESS, and that’s just the start. Small-scale hydrogen initiatives persistBut AES Andes isn’t waving the white flag on green hydrogen just yet. Since kicking off Greentegra , they’ve rolled out 2,181 MW of renewable energy and have 2,363 MW of energy storage in the works. Technical snapshot: green hydrogen and green ammoniaHere’s the lowdown on green hydrogen and green ammonia: electrolyzers use renewable juice to split water into hydrogen; then that H2 teams up with nitrogen via a renewable-powered Haber–Bosch setup to make ammonia.