Resolution is set to 10 minutes here, we can see fairly steady but slowly rising heat pump electric demand through the average day in January. Shoulder months start to see heat pump demand fall off overnight and summer months show no space heating demand. The larger spikes show the heat pump heating hot water.
Something quite satisfying about this one, showing lighting demand growing as the hours of day light decreases. It looks like there’s a data error perhaps in December as none of the other months show overnight consumption… or did we leave the attic light on for a whole month!?
EV charging showing a very strong over night off-peak pattern. We dont yet have solar unfortunately
Timing here influenced by 00:30 to 04:30 Octopus Go off peak timings.
It’s interesting to see that the EV overnight charging completely dominates the overall profile. I guess that will have to change in the future when adoption gets into the high 80-90% ranges, otherwise we may invert the traditional demand curve… in the short to medium term it’s beneficial of course as it’s more likely to smooth out the overall demand profile.
I’ve also added support for Virtual feeds and a greater variety of feed types such as power feeds and temperature feeds. Here’s an example with outside temperature:
The profile chart makes a mess of my “House Consumption Total” feed, which is a virtual feed that subtracts heat pump and immersion from cumulative consumption. The source feeds come from two different devices, with different time base and frequency.
Thanks for this @TrystanLea! I think these sort of plots are a useful midpoint between the high time resolution detailed monitoring and higher level stats like SCOP. Plotting the temperature is also really interesting combined with the heat pump demand.
Interesting that the EV dominates the combined profile - can I ask how often you’re generally charging the car vs the hot water tank? Looks like more driving in winter (on top of lower EV efficiency)?
Tariffs like Octopus Go may need to evolve to offer different low cost times to different people if EVs are generally dominating as seen here. But someone with a bigger/peakier heat pump demand, and less driving or slower charging, could easily overwhelm your nighttime peak.
@TrystanLea Trystan - the new profiler app is great. I have used the export function to create monthly heat pump electric in, heat out and COP plots. Example attached for my heat pump in December at 10 minute intervals.
@TrystanLea Yes - quite happy with the heat pump efficiency. Nominal flow temperature of 35degC at design external of -2degC - although the heating curve does shift up and down a small bit as I use adaptive controls.
Include the current month. We’re 20 days into November, yet I can’t see any profile for it until the end of the month.
Add an option to view a specific time period rather than each month. For example, the last two weeks for the Octopus Saving Sessions.
2b. For this period, show 3 profiles: weekdays, weekends, and overall.
