Green Gravity, a startup proposing to use old mine shafts for gravitational energy storage, has secured AUD 1.4 million ($990,000) in its first formal capital raise.From pv magazine Australia Green Gravity is turning to the former cornerstone of Australia's wealth, coal mining, to remove the final hurdle for a fully renewable electricity system. It is proposing to lift and release ultra-heavy weights in legacy mine shafts, in a reimagining of how the universal force of attraction, gravity, can be used to store renewable energy. While the hyped Swiss startup Energy Vault recently hit rocky waters, ...Den vollständigen Artikel lesen ...
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