content: If I read correctly, it can significantly reduce travel time - at best, 8 hour trip becomes 45 minute trip.  Many costs is recovered by saved time. Also, tourism is better. As for storage of solar power, large project like this will spark research and development to solve proble.  Also, Elon Musk has already begun on Powerwall; if it may be adapted for use with Hyperloop,  could be needed incentive to build manufacturing infrastructure to make cost realistic. Is good idea as long as kebab does not ride.