RE:RE:RE:RE:am I reading this right?I agree with the $/kwh rates. Those are amongst the lowest in the world. But if it costs 5 cents/kWh, and it takes 3.94 kWh/kg, that means it will only cost $500 per year for 644 kg of iron. That I am afraid I do not buy. I think the 3.94 kWh / kg may need further thought?.