Concrete is certainly a lot more clean than lithium mining. Meanwhile, construction of specific things is obviously something that you learn to do better over time. For example, here's how cost of nuclear reactor construction has dropped in China as they learned from building them. Absolutely incredible that the concept of getting better at doing things through practice escapes you.

Meanwhile they are already in production, hilarious how you didn't even bother checking a link past 2018 before spewing more drivel. 🤣

Following the start of grid interconnection in September 2023, the 25MW/100MWh EVx GESS in Rudong achieved full interconnection after the completion of the final 4km 35kV overhead power line to a remote end substation, as planned with local state grid authorities.

• https://www.enlit.world/library/china-connects-gravity-storage-and-launches-three-new-projects