Compared to energy loss over distance, which you don't really have if you dig your hole right next to you, it's more like 6 orders of magnitude, maybe less. Bu

Compared to energy loss over distance, which you don't really have if you dig your hole right next to you, it's more like 6 orders of magnitude, maybe less. But maybe capacity is only part of the story. What about locality? Distributed energy storage may not be as efficient, but it has a lot of other benefits.