This made me wonder what happened with LightSail energy, and found this takedown: https://www.greentechmedia.com/squared/letter-from-sand-hill-road/lightsail-en

This made me wonder what happened with LightSail energy, and found this takedown: https://www.greentechmedia.com/squared/letter-from-sand-hill-road/lightsail-energy-storage-and-the-failure-of-the-founder-narrative https://www.greentechmedia.com/squared/letter-from-sand-hill... Compressed air still seems like a promising idea to help solve the scale of energy storage we need, so I’m happy to see more companies taking a crack at it.