DamonHD

Would a forced convector (ie with a fan) do a better job of distributing the heat?

Didn't see in there a link to NESO document: https://www.neso.energy/industry-information/connections-reform/connections-reform-results

Porous Tile Stain Dementia?

It optimises for occupancy, reactively and predictively, yes. Most people want lower temperatures while sleeping, but maybe not an icy room as they go to bed. That's effectively what Radbot aims for.

I agree that that fault mode is plausible.

There are solutions such as ... ahem ... Radbot, which don't need any particular central hub/stat and help manage the temperatures in each room automagically.

It may be @Pocster's WC seen from above with him on it...

https://www.gov.uk/government/consultations/feed-in-tariffs-fit-scheme-indexation-changes/changes-to-inflation-indexation-in-the-feed-in-tariffs-fit-scheme-consultation-document-html

By ensuring the that the system tells them just what they need to know to get there, and helps them along, assuming it's possible. ("Heat the house for zero cost with all the windows open when it's freezing outside" doesn't have a good solution!) And not expecting the end user to have a physics degree: "folk physics" seems to be bad in general.

By agency I mean "to make it do what the user need,s at reasonable cost" rather than necessarily "to understand each of the 50 control parameters". I had near neighbours who had a HP in new (badly built) social housing with no explanation on use, ending up with a ~£4k heating bill ~15Y ago. Agency would avoid that.

OpenTherm isn't open: I think you have to pay a lot to look at the spec and thus I haven't ever seen it. I suggested some time ago to LG and others that there should be a mandated basic common interface across all devices of a given type, but which does not prevent a manufacturer adding their features on top. Indeed this will be the final bit of my PhD research - how to give normal humans more agency with heat pumps than most ever had even with gas.

I am a bit late to this party, but my HP + smart TRVs (obvs!) combo seems to work well. I'm about to start a paper on my work showing that TRVs and retrofit HPs can work well, and one difficult area is 'comfort'. I am happy with daily temperature cycling and summer and winter, and not heating more than needed overnight for example feels like a win on energy and comfort (and I hope to be able to share experimental results to that effect), but huge numbers of people seem to feel that the only comfortable temperature is a rock-steady one at or above 18C... Which amused Prof Mackay then Chief Scientific Advisor at DECC, when told it by a senior boffin from BRE (I think) at a big meeting at the end of 2012. Mackay said that his family (including very young child) turned the heating up for a bit from 14C if they began to fell chilly. Anyway, am I the only one happy with daily temperature cycles?

5m between what and a boundary?

All this stuff is going to become more important to help delay or schedule substation upgrades, etc. And so there has been evidence gathering on what info should be collected and collated by whom, and who should be able to see that data: https://www.gov.uk/government/calls-for-evidence/improving-the-visibility-of-distributed-energy-assets

The DNO and others may well care about how many kWh you produce/export as well as peak kW or A because of their diversity calcs. At the very least it adds more noise to the industty settlement process. And I've been involved in NG/ESO and gov discussions about understanding where assets are and how they behave. You won't be helping! B^> Realistically, adding a couple of panels' worth of generation - ie a small chunk of a existing output - probably won't hurt anything. And I'm absoutely not going to show you this: https://www.amazon.co.uk/dp/B0CJFTBR41