Regarding Visit a heat pump in Outer Hebrides, I registered mine last month, no interest so far, it appears to the first one.

Home Energy Scotland recommend the Energy Saving Trust - Greener Homes Network (2 properties).

app.visitaheatpump.com/hosts/723

greenhomesnetwork.energysavingtrust.org.uk

I'm also sceptical, some background to this is a surplus of hydrogen on Orkney due to test facilities, they also have some extremely short routes so if it might work anywhere this might be it.

They are also considering hybrid-electric/electric only options.

www.emec.org.uk/facilities/h...

Thanks, I have Home Assistant setup in the house already, you can control the Zappi from HA?

You recommend Solar Edge? Considering it with Powerwall 3, I'll be limited to G98/3.68kW, looking at 10 panels roof mount (~4.2kWp).

Impressed with the Powerwall 2 and 9*430W JA solar panel & Solis 3.6kW.

Was considering getting a Zappi in a house with a Powerwall 2 and solar (Solis inverter), do you recommend it?

Was wondering if/how they integrate?

Use an Ohme ePod on another property with no solar or battery currently, like the lack of mobile network reliance with the Zappi and solar support.

Pretty good for a base rate, the advantages (lack of dependence on gas) and disadvantages (relative lack of flexibility) of French nuclear.

Only a few days my average rate has been below that this Winter. Suspect the French fleet will be doing a lot of export this year with the elevated gas prices.

Yes, above is for my mother's house, also switched my own house over to Go from Cosy for the EV. I also hope to get solar/battery in there this spring.

I suspect high gas prices will persist making Agile/Tracker less attractive. ~10kWh solar + overnight battery charge provides enough for heatpump

It is possible to install the Powerwall 2 under a G98, that is the case here. It seems more suitable to DNO restrictions than say the GivEnergy AIO. The Powerwall 3 is DC coupled. I don't like the politics myself but I still believe in the company although this install wasn't my decision.

Looks like they sell for ~£32k with 140k miles on them from Autotrader with warranty.

Spoke with one of drivers up in Edinburgh at a rapid he had it for 4 years done a lot of mileage and some long distance, very happy with it.

Think they were £60k new and he used Scot Gov assistance to purchase.

Moving it to Self-Powered in the afternoon after DHW cycle then it doesn't need to be on Time-Based Control till cheaper 2200 slot.

It is only aware of the heat pump load and the electric shower, these are irregular in demand. It is aggressive about charging to 100% unlike their EV 80% approach.

I think people will be very surprised how quickly (on a decadal scale) this will take place, even EVs are very inefficient (in a financial sense) depreciating assets.

I drive a Renault Zoe ZE50 if I was to choose again now second hand I would probably go Kia e-Niro/Hyundai Kona 64 kWh with heat pump, MG5 or older Tesla Model 3.

The older Ioniq 38 kWh with shorter range and BMW i3 is also a good choice.

ev-database.org
is a good resource.

Ecodan 6kW R290, 1970s semi 2 bedroom, loft insulation, unfilled cavity, new radiators, Octopus Cosy tariff.

Replaced sparingly used resistive/storage heaters was reliant on solid fuel stove last winter.

Overall average electricity use similar to last winter, no coal now, improved thermal comfort.

Haven't got it in the North West of Scotland, ~140 miles NW of the Red area.

Forecasting gust of 90 mph+ but less impact here I guess.

Never had a red warning up here? Or at least since these alerts have been active.

Help to have new panels I guess, they are bifacial if that adds much, I'm pleasantly surprised they produce in dull conditions. Will be frustrated by clipping from the inverter by Spring I expect, should have tried for more panels for current period. Hopefully they'll stay in place with the wind.

Interesting, I misspelt/got my units mixed up. I meant kWp which will be the 2.87 figure (7 panels?).

That seems like pretty decent production, the PV-GIS calculation I did was only for ~50+kWh January, ~30+kWh December for the system I mentioned above.

What is the DC kWhp rating of your panels?

I've been impressed by average 2.4 kWh/day on a 3.87 kWhp system for mid-late Jan over 6 days, ~150 miles North of you.

Early days, 9 x JA Solar 430 W panels and a 3.6 kW Solis inverter. Angled to South-SouthWest no obstructions, relatively flat terrain.

Yes, the ECO actually seemed less efficient but I don't really trust the reported COPs on Ecodans much. My mother's system is trending to 2.1 (Heating & DHW).

2.6 - Heating
1.6 - DHW

My own R290 6kW unit is 3.2 combined.

3.3 - Heating
2.7 - DHW

Consumption reported on the R290 is 30%+ measured.

Yes, I have an R290 (FTC7) Ecodan 6kW myself and it underpredicts 30%+ on average on energy used vs a Shelly clamp, I presume the production numbers are similarly inaccurate.

The estimated usage on the 8.5 kW R32 Ecodan FTC6 seems far closer. I think lack of pump measurement is a large factor.

I had similar reservations, it was designed for 45 degree flow, the radiators are decently sized. We paid for 4 extra. Two are mostly switched off. Arguably we haven't had an extended design temperature test, the coastal location keeps temperatures significantly milder than elsewhere.