It’s going to be an interesting puzzle to try and deduce what all the different consumers are, just by looking at detailed electricity consumption graphs, such as this one:
I’ve already determined that the “double dip” patterns, such as the one at 15:41 to 15:52, is the thermostat + boiler “hunting” around to maintain its setpoint temperature.
The trouble of course, is that this whole house measurement approach doesn’t measure invidual appliances, but – as the term says – it can only report the total of all appliance consumption patterns. In this particular graph, you can see a second consumer kicking in around 15:15 and switching off again at 15:56. Fortunately though, this one is very characteristic as well: there’s a motor turning on, causing a brief very sharp blip at the start. It’s the kitchen fridge, in fact – and as the graph shows, it draws about 80 W.
In the general sense, this Knapsack problem is impossible to solve with certainty. But that doesn’t mean we can’t get a good insight of what’s going on around the house anyway.
There are several more known sources and consumption patterns around here, and once HouseMon is a bit further along, I hope to be able to identify them all in the collected data to be able to obtain fairly good estimates of the monthly consumption for each one of them. Also, once these patters are sufficiently accurately known, it should be possible to subtract them from the graph so to speak, and get a better view of the rest of the measurements.