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Yeah I worked at Powerlink Qld and they had plasma screens all over the place with the Qld and Nsw spot prices, how much was being used at any one time in each area (very interesting to see that Boyne Smelter used the same amount of electricity at any one time as the whole south Bris and Gold...

Electricity is "traded" on a spot market and the price changes all the time. It is actually quite interesting to see the price per Mw/hour jump up and down from $15.00 to $24.00 up to $60.00 and back down to $10.00 all day. It's not just coal prices that determine the final cost of...