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Showing results for tags 'model'.
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It has taken me a long while to be convinced that PV was economically worthwhile, but now that we have the energy model near complete for our house it's become a no brainer. So I thought I'd share my findings. This assumes a FIT installation with Generated and Exported rates of 3.93 and 5.03 p/kWh for a 9kW system. I've not yet tried the cheaper installation of a non-FIT version which is often quoted as a better alternative. Perhaps I'll have a go at modelling and comparing that too in the near future. I've made my Energy Model available for anyone interested; get it here. The following charts show the quickest return to payoff of the PV system and lowest annual outgoings. Had to use Mains Gas for Heating and DHW, through these can be toggled to electricity in the model.
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I've just had an advertising flyer from a company I've bought electronic components from for years, and for once it looks quite interesting. It's bit expensive, but looks to be re-usable, so might well be cost-effective if refining a design using scale models. It might well have a resale value, too, within the self-build community. I built a total of six 1:50 scale models of our house, at a cost of around £50 in materials (foam board, liteply, cutting board, glue etc), so maybe the cost of these kits isn't all that high, given the possibility to re-use the components. I'm not endorsing this at all, as I've only had a quick look at both the details from the supplier and the manufacturer's website, but it looks like an interesting system: http://arckit.com/
