All energy retailers buy their electricity from the same wholesale electricity market, where prices are set every 30 minutes. The wholesale price is the true price for your usage that Amber (and other retailers) have to pay to provide you energy. The wholesale price includes wholesale energy costs (which vary every 30 mins), hedging costs, the rates charged by your local network (who own the poles and wires), metering costs and regulated charges for environmental schemes and market operations. We also add on a carbon offset to make your energy use carbon neutral.
See more at www.amberelectric.com.au/how-it-works