electricity challenge round up

Back in August 2009 I set myself an electricity challenge – to use a maximum of 12kWh (average) a day for the last four months of the year.

2009 is well and truly over, and after countless number of electricity meter reads, I have finally collated the results and have them ready to present.

Firstly – some background on my usage. For the first eight months of 2009, my electricity usage was 14.88 kwh/day:

Electricity usage graph

Now for the final four ‘challenge’ months – September to December. I will preface the result with “I tried really hard”, but unfortunately i did not succeed. My average usage for this period was 12.62 kwh/day:

Electricity usage graph

So close! Under 12 would have been nice, but it is something to work towards. I will report back soon on my usage for the first quarter of this year (a.k.a the “air conditioner” quarter), to see if I can achieve the target.

I also think I need to take a new approach to reducing my usage. The odd light change to CFL or sleep period for the laptop will not achieve the “less than 12” target. I need to do something about the always on/big consumers – the fridge, the freezer, the web server or the media center PC. One of these boys has to undergo a big change!

I am also putting together a energy meter, to allow me to monitor my usage better (rather than relying on myself to read the meter!). So far I have a CT clamp and I am working on a solution that involves a PICAXE (or an arduino) and an 433Mhz RF transmitter. More on this soon.


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