I just came across CodeZoo, which is a recently launched site with free libraries for a whole bunch of standard tasks. It looks like it should be really useful – just a quick browse brings up all sorts of things that I might want to use.
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I came across another interesting article on simulating load profiles and this one suggests using principal components analysis and some regression. I had a go with it yesterday and managed to get a pretty good approximation using one year of electricity demand data at hourly interval. Running princomp in R, I picked three components out of 24 and that covers 98% of the variance. Check it out (click for bigger):
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I ordered a copy of Java in a Nutshell a couple months ago and it finally arrived today. It looks pretty good but as my office mates pointed out, what size nutshell are they referring to? The thing weighs in at over 1200 pages!
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I recently submitted a paper which said that an integrated model of domestic energy consumption is desperately needed. What’s more, I said that it didn’t look as though anyone else was really working on something like this. Turns out I was only partly right – people are working on integrated models, they’re just not integrating them with each other.
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I read an interesting article yesterday by Yao et al (in Energy and Buildings) about how to create domestic load profiles. This paper is properly the most direct precursor to what I’m trying to do with my modelling. The main behavioural response to PV that I will be examining is a temporal shift and so if I’m going to simulate that change I need to be able to simulate consumption on a comparable time scale. Anyway the paper was interesting but left me wondering:
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Does anyone have any advice on version numbers? Is there a rule of thumb to figure out what constitutes a 0.x release? Do others not even bothering numbering their model versions?
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