I'm still curious about that project. Energy density is a consideration, but it may not be the only one. Yeah, as-is, there's no way it can pay for itself. But

I'm still curious about that project. Energy density is a consideration, but it may not be the only one. Yeah, as-is, there's no way it can pay for itself. But how much room does this have to grow, and at what cost? If most the cost is down to laying the track and making these custom railroad cars, then maybe there are some economies of scale that could come into play. And then I assume that most of the equipment involved could easily last for decades. Up-front cost for battery installations may be cheap, but don't lithium ion batteries typically only last a few years? That means you won't be able to amortize the cost of equipment over a very big stretch of time at all.