I was wondering what the energy density of superconducting coil/tape is. I essentially what to be able to say is for every centimeter or inch of this material this is the amount of energy could be in it (kW, kWh, etc). So the background; I would like for the parameters to be for (La1.85Ba0.15CuO4), YBCO (Yttrium-Barium-Copper-Oxide) as one case and BiSrCaCu2O9 to be for the second case. However, if you choose to change the chemical makeup or substitute a type of Superconductor, I would like to aim at high temperature highest energy density goal (not very rare material). The last part and harder part would be what would the necessary spacing be if you lined two of these coils up to each other so the fields do not cancel out? Thanks for help. i.e. 5 inch length wire (1 inch squared rectangle) of YBCO has a energy density of 1 kW of energy per inch <squared box of rectangle> (1kW/in), with a spacing of 1 inch between wires. Which means 4 wires vertically stacked would get a size of 5x1x10 (LxWxH) inches and 20 kW in potential energy. Thanks for the help.