>the only proven viable storage is large scale hydro Japan's experience with sodium-sulfur batteries stands in contrast. https://www.sandia.gov/ess-ssl/wp-con

>the only proven viable storage is large scale hydro Japan's experience with sodium-sulfur batteries stands in contrast. https://www.sandia.gov/ess-ssl/wp-content/uploads/2021/LDES/Tomio_Tamakoshi.pdf https://www.sandia.gov/ess-ssl/wp-content/uploads/2021/LDES/... Na-S is less popular for new projects these days because of rapid decreases in the price of lithium batteries, but that's not a fundamental limitation of the technology — and we have no risk of running out of sodium nor sulfur. In fairness, Japan's construction sector seems much healthier than that of the United States.