2 charts in 1

1. Increasing electricity prices mean that energy efficiency is better value than ever. 2. The carbon price is a very small part of home electricity.

Previously I needed two charts to make these points, but now this chart does both.

Clearly, there has been a significant increase over the years (and these prices don't include the 10% goods and services tax). So the savings you make by choosing the energy-efficient fridge / feezer / TV / hot water system / light bulb etc are greater than ever.

Also, the carbon price is that little grey sliver above the black bit. Yes I know - it's way smaller than you might have thought judging by all the over-inflated talk over the past couple of years.

Even though it's small in the overall price we pay for electricity, it is significant in comparison to the black section (the cost of making energy) so that encourages the electricity generating companies to use more renewables and less coal.