Lithium for energy storage is not the only option. Pumped water already has been a thing for decades. Additionally other avenues are being explored like [1] pum

Lithium for energy storage is not the only option. Pumped water already has been a thing for decades. Additionally other avenues are being explored like [1] pumped air and [2] lifting concrete weights. [1] https://www.planete-energies.com/en/medias/close/what-compressed-air-energy-storage https://www.planete-energies.com/en/medias/close/what-compre... [2] https://profittrends.com/energy-investing/renewable-energy/swiss-startup-energy-storage-crane-concrete/ https://profittrends.com/energy-investing/renewable-energy/s...