Well it has been a while and thanks to Caspian Smith of IBM for push on my blog via Twitter.
What I have done recently
Well what I have done is replace my Freezer & Fridge with a new one – by my calculations I am going from about 1400-1500 KWh’s per year to just less than 500KWh (according to the sticker), and looking at the figures before & after on my “smart meter” this seems about right.
By the numbers, I save 900 KWh’s per year at 19 cents per KWh = $170 per year in power savings – I paid just under $1,200 for the device – that’s a 7-8 years break even (or about 14% rate of return) a small and simple start on the path to energy efficiency.
Look at the age of your appliances, are they old ? are they efficient ? can you afford to replace then with smaller &/or newer more efficient ones ?
What I have not done recently !
What I have not been able to achieve is for someone to actually give me a quote for Solar hot water, which in a way you can understand, however it is still frustrating – according to what I have read – there is a 70% increase in the demand because of the Federal & NSW state governments rebates – which, depending on the system you get can reduce, say a $3-4000 system to as low as $800 – 1,600 out of pocket.
What really frustrates me about this is that one of the places which has failed is advertising there services, why advertise if your not going to get around to giving a quote ? Don’t you want the business ?
The other activity is Solar Electricity – the system is changing at the end of the Financial year, the subsidy reduces slightly ($8,000 to $7,500) but is not means tested, which puts me eligible which I am not right now. SO I need to wait – probably go for both at the same time – sweeten the deal for the eventual supplier.
Update on usage
So what has been my usage over the past few months since I installed the “smart meter” ? It has been increasing as it gets colder – which is obvious, however I did some analysis and there is a 60% correlation between the Maximum temperature of the day and the energy used. (see chart)
Useful, well yes because if we are going to be able to bid for usage of electricty we do need to be able to predict usage based on a number of factors, and the tempreture is going to be one of those.
Thanks for reading