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Last seen: May 31, 2026
Short of watermarking every post and every chart with 'N=1' there isn't much more I can do than I already have done, point out regularly that this is ...
Nonetheless, useful commentary in that it tells us 'smart' meters are not so much about letting consumers know much about their consumption — wasn't t...
@transparent may have something useful to add here, he knows a lot about smart meters. My initial thought is do you actually need this level of ...
@ian33a — I have a sort of residual interest in this problem as I used to have an oil tank (and boiler) and I remember how vague my usage measurements...
I agree, and that is in effect what @jamespa and I have been doing! That's for the link and it seems I have been teaching grandmothers to suck eg...
@ian33a — a measured heat loss always trumps a calculated (whatiffery spreadsheet) heat loss, providing certain requirements are met. Firstly, the I...
Yes, see below. They are just standard regression lines, just as in any spreadsheet, but in R you have more control and more options, but as I have sa...
Using past oil usage to estimate heat loss is tricky. Firstly it is very unusual to have accurate interval usage. You fills your tank and runs your ...
@jamespa — this version may be marginally better:
@jamespa — the 0900 2100 IAT/OAT data is now in R and as a starter for ten I have distinguished between setback and setback and hour, 0900 and 2100, b...
@peterwurmsdobler — thank you for your positive comments. You are certainly taking a diligent and sensible approach to assessing your own needs. The...
@jamespa — as a taster, which may in fact already have given us the answer, here is the plot for the whole dataset (no setback/no setback sub sets) fo...
Latest Posts
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@jamespa That's interesting and would bring cost down a...
By springswood , 15 minutes ago
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@jamespa I also think that a tiny number of househol...
By Batpred , 8 hours ago
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RE: Outdoor Battery Solutions?
We are on the same tariff, on 3.5p/kwh. So until early ...
By Batpred , 10 hours ago
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RE: Solar Yield vs Temperature.
@old_scientist Fair enough, that may be similar to t...
By Batpred , 11 hours ago
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RE: Lower electric tariffs for heat pump users
I suspect that would not be a difficult decision, if I ...
By Batpred , 13 hours ago
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RE: Vehicle-to-Home with a Heat Pump: Is the Technology Ready and Which EV Should I Buy?
Absolutely. We are going through another period when ou...
By Batpred , 14 hours ago
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I am frequently annoyed to see that my Growatt inverter...
By DavidAlgarve , 15 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
@deltona When we list the kit we use, it is meant to...
By Batpred , 16 hours ago
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RE: Home energy storage & battery register
* 2 x Solax Power Triple Power 5.8kW Lithium-ion Batter...
By weoleyric , 22 hours ago
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RE: Is Biomass Really Renewable?
Yes, it seems obvious they are not in it for the enviro...
By Batpred , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa maybe it wouldn’t damage the pipework but this...
By AdamK , 1 day ago
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@l8again Perfect, it happens and they need to be able t...
By ASHP-BOBBA , 2 days ago
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RE: What is the Heat Geek Guarantee?
I have to say I found the Heat Geek website very user-f...
By Batpred , 2 days ago
