Even if a technology is _nearly_ as cheap, a company selling them might be willing to eat the initial higher prices and make a loss for a time until the learnin

Even if a technology is _nearly_ as cheap, a company selling them might be willing to eat the initial higher prices and make a loss for a time until the learning curve puts them at a bigger advantage. The examples I was thinking of with this particular metric were Ambris liquid metal cells: https://ambri.com/solution/ https://ambri.com/solution/ and iron-air batteries: https://formenergy.com/technology/battery-technology/ https://formenergy.com/technology/battery-technology/ Both of these technologies have additional advantages on top of cost that I didn't bother going into: namely they degrade less with use and both have no risk of thermal runaway.