Japan has forty years of experience with energy storage actually: https://en.wikipedia.org/wiki/Sodium%E2%80%93sulfur_battery#Japan https://en.wikipedia.org/wi

Japan has forty years of experience with energy storage actually: https://en.wikipedia.org/wiki/Sodium%E2%80%93sulfur_battery#Japan https://en.wikipedia.org/wiki/Sodium%E2%80%93sulfur_battery#... >one of four battery types selected [...] as part of the "Moonlight Project" in 1980. They have 2600 MWh of installed grid energy storage capacity as NaS batteries: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7804322 https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7804322 >According to NGK, the company has delivered NAS battery systems with a total output of 530 MW and storage capacity The power generation shortfall on the Duck curve is about 10000 MW. So Na-S capacity has reached 5% of that. But it's a start, and it's cheap, and it's been shown to work. Plus, growth in these kinds of industries can be supralinear.