Comments by "Jkauppa" (@Jkauppa) on "Technology Connections"
channel.
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superconducting YBCO induction coil storage, should be pretty nice, example, L=1000m of the YBCO wire, I = 5000A = 5kA, E=½LI^2 = 3.5MWh, so what does that 1000m of the wire and the cooler compressor unit weight, T=77K, assume N=1000 loops of wire, no iron core, assume 6mT or fridge magnet field strength, dc induction charging and discharging, the only think costing energy is the super conduction compressor, same as super conducting electricity transport wires, its the same as if the storage would deplete at some rate
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