Winter Power Bill

I received my winter power bill recently so have spent the afternoon comparing the bill.

Daily Usage:
1.4 kwH per day greater usage in 2012. This is where I need to see if I can increase the amount of insulation and reduce heat loss. Most of this increase is due to having someone at home all day needing electricity, whereas I had hoped to reduce usage with all children off at work during the week.

Difference in cost: $99.09 extra this year

Tariffs - Peak (2011) - 28.73 c/kWh :
2012 before Carbon Tax - 30.34 c/kWh
2012 after Carbon Tax- 34.62c/kWh
 -Off-Peak (2011) - 10.89 c/kWh
2012 before Carbon Tax -11.50 c/kWh
2012 after Carbon Tax-13.12 c/kWh
Adjusting for slightly different number of days (95 days in 2011 and 89 in 2012)
gives $ amount increase of $92.15 for the equivalent number of days (89).
70% of the price increase is the carbon tax, the rest the increase prior. Its a quite a bit more than what the government had suggested - 15% instead of 10%. Is it all due to the Carbon Tax or also other price rises by the electricity company (profiteering??). Carbon Tax seems to be affecting the off-peak rate a bit more (17%) which is interesting.
The amount we contributed to the grid is a little less this year - either more cloudy or greater usage than last year.
So the increase with the Carbon Tax is about the same as the increase that has been occurring almost yearly the last 3-4 years. While increases in costs are not welcome, in my case the % cost that electricity makes to my bills versus my& my partners net income is approx 1.8%.
Verdict -Not the end of existence as we know it!