I dont have a battery, but I have the rest.  Here is my setup and brief comments

Heat pump

Vaillant 7kW, directly connected to radiators.  No external controls.

The controls are (unexpectedly) brilliant, most particularly the fact that even if you are operating of pure weather compensation you can change the 'room temperature' and what happens behind the scene is that the weather compensation curve shifts.  Similarly a timed setback/set forward shifts the WC curve.  Some other heat pumps can effectively do set back/set forward only by invoking an on/off thermostat which is obviously less efficient.  All heat pump controls should operate this way!  

However - although absolutely whisper quiet most of the time it gets a bit noisy during defrost.  Fortunately I've worked out how to tame it 

Vaillant app is a bit of a toy really but you can download various data which is useful initially, Im sure the novelty will wear off until there is a problem - hopefully many years down the line.  The remote control is occasionally useful

I have a feeling the 8kW Ecodan R290kW might be a hands down winner at present, it has 2 compressors (6kW and 2kW) so a larger modulation range than most.  Will others follow suit?  Almost a universal fit pump!

I'm very happy overall with the Vaillant now Ive worked out how to tame the defrost noise.  Looks like SCOP will work out at around 4, between Nov and Feb it was 12% cheaper than gas to run (radiators at 42C FT).  

I have one Mitsubishi fan coil, I wish Id installed a couple more, a lovely looking and very functional piece of kit.

Regrets: not installing a couple more fancoils in the downstairs rooms

Solar panels

4kWp in 250W panels installed in 2011.  I could easily get 5.5-6kWp, even if my DNO wont allow more than 3.84kW in export.  My existing inverter can cope with more panels than output but the cost of 'upgrading' is too high.

Regrets: not 'maxing out' the amount of panels from day 1.  Should have put in 5.5kW with the same inverter (which can cope albeit the output will 'clip' once it gets above 3.86kW)

Inverter

SMA Sunny Boy 4000 - not much to say about this its now out of date technology, but still working 14 years down the line

Regrets: none, because today's technology didn't exist in 2011

Battery

None - cant make the business case pay relative to just choosing a good leccy tarrif - although its getting close

Regrets: that I cant make the business case pay

Electric Vehicle

Kin e-niro (2021 version) bought second hand, plus roofbars, replacing a Ford Mondeo.  This choice worried me; Mondeos are vast and, despite their reputation as a salesman's car, good and ultra reliable.  We used the Mondeo as a van.  But we didn't want another big car.  So we did a bit of analysis of our actual (as opposed to perceived) use and concluded that roof bars would take most of what we need a big car for and once or twice a year we could get stuff delivered or hire a van. 

We looked at all the obvious cars and initially ignored the Niro for reasons I dont now know, then one day I read a review, we went to see one, and it precisely met our needs.  Two generations on the EV3 is getting excellent reviews

Regrets: none

Car charger

Granny charger (13A socket) only.  Charged overnight, currently at 7p/kWh

Regrets: none  I may get a 'proper' charger one day, probably triggered by an electricity tariff change.  Until then, why spend the money?

Integration and automation

The heat pump control does everything we want so we don't layer anything on top.  However we do monitor the heat pump with Home Assistant running on a pi3.

Home assistant is used to turn the 13A socket for the granny charger on and off for the night-time tariff (previous to the night time tariff it turned it on and off according to solar production).  There is also a manual physical switch to override.  Easier than getting the car to do the same (which it can), and more fun than having the Shelly switch do the job itself (which it can).

Regrets: The Vaillant/HA interface only exposes a limited number of parameters which don't include, for example, compressor modulation.  It would be nice to have these but it would mean swapping to openenergy monitor with its ebusd card.  Maybe one day, by then will probably have more exciting things to do.

@majordennisbloodnok 

Same ‘Trinity’ here, and like you Major, ours has been running for two years and more - yet I still enthusiastically peruse the Tesla app umpteen times a day keeping an eye on the solar energy production; this particular ‘trait’ has not really diminished at all (yes, I know I’m a ‘nerd & sado’!🙇🏻)

I think we made good choices and decisions over products; unfortunately, our roof orientation and the amount of shadowing means our solar production is well below par. Though we have 5 panels on the main roof, 4 on a flat roof, 2 on the workshop roof and 10 ground mounted, the 21 panels amount to about 1 MWh of energy in the month of June, the best we see.

Battery

We have 27KWh of Tesla Powerwall capacity and each of the PV panels enjoys its’ own Enphase IQ7A microinvertor - this installation was a serious financial blow but I don’t like doing things by halves!

Heat pump

We had the Daikin 8 KW monobloc installed and as we wished to have smart control later (the Homely was not yet available for our pump) had to make do with a ‘clunk on / clunk off’ controller initially, (not ideal) and we were pleased when the Homely became available.

Hot Water.

Not alone in this I feel sure but, we just did not have a space for a socking great DHW tank as would have been required by MCS guidelines. We took the option of retaining space in our airing cupboard and fitting a Sunamp Thermino heat battery powered by solar or grid energy controlled via our Myenergi Eddi (which also controls our electrical immersion unit in the dual fuel towel rail.)

Electric Vehicle?

Err no, public transport or Shank’s Pony for us, our ‘bus company does use variously derived ‘greener’ fuels to power the fleet and are about to start running some EB’s on their flagship route as a trial.

Integration and automation

It is a little bit ‘bitty’ with the heating ignorant of the solar panels and the DHW arrangements but, all in all, with Homely looking after the heating, Eddi seeing to the hot water and Enphase plus Tesla taking care of the photons, all seem to work reasonably well.  I can address the house needs from grid or home brewed energy quite easily with the Tesla app. I am considering whether to provide Octopus Energy with access to my Powerwall and solar output with Octopus Intelligent Flux for the non-heating season.

Looking Back

Have I any regrets over our choice? Not really, it has become quite a hobby for me at least! A bonus was of course, getting to hear of the RHH forum! Having also made an investment in a solar farm* and a few bricks of a wind turbine, I hope to see some return for that - but there are risks in such investments as is evident just at present.

*I can’t really justify taking up any more of the back garden with silicon!

Going ‘Green’ is something I feel passionate about, (and I think my better half also leans quite heavily in the same direction but leaves me to do the ‘nerdy stuff’ etc!) We have had a few visitors under the ‘Visit a Heat Pump’ scheme and enjoy spreading the word around.

I do have one small regret I suppose… that is that we are still enjoying a ‘Bonkers’ pricing structure for our electrical energy and paying a levy towards keeping gas burning! Regards, Toodles.