Not at all, with the solar diverter controlling the top mounted dual immersion heater it works as normal, heating from the top with the pump 'pulling' the heat down.

@@travellingthomases That is great to hear. I am confused now. This is where I got the information from - kzbin.info/www/bejne/bl7KYYuqhbtopJo

Thanks for the comment Chris - each Tesla Powerwall has a 5kW inverter so over the 4 hours of Octopus Go they typically can recharge from Empty to full at 7.5 kWh charge rate

Hi Lawson, yes the local control panel works

I’ve had a 69 plate 10kw version for last 3 months and get about 30 miles electric range, which I’ve checked to be correct using Google maps. 12-13 miles seems low for the 7kw version.

I just bought 19 plate 7kw version. getting similar around 15-16 miles. it has done only 16K miles so far, if that matters.

I've just came across this cylinder and curious to what your comments means asking why would anyone want to heat up 250L 24/7 365. I thought the whole idea of this cylinder was to avoid doing that so who would be heating it fully full time, am I not understanding your question correctly?

Thanks for your reply Matt. My Mixergy is an EARLY system without the heat pump coil. All new Mixergy cylinders are Heat Pump ready. Mitsubishi would not approve a new Mixergy cylinder as part of the trial we are part of so had to have a second cylinder. However this now gives us significant capacity that we can heat using off peak energy. We also have 2 x Powerball's in the garage providing 27 kWh of storage. Net of this; we import over 60 kWh each night (December 2022) at only 7p per kWh which charges both batteries and both cylinders meaning our daily electricity cost is between £4-£10 depending on any mid-winter sunshine. In the summer we will be largely off-grid.

Hi Douglas, yes I bought shares in the new Kirk Hill wind farm in Scotland, goes live Nov 23 - all very exciting!

FUD

I had both Powerwalls installed with solar PV so £0 VAT ; and A LOT less than the figures you quoted

@@GrantThomas So did I - £7,000 each in 2019. They're currently around £11,500 each installed. I received three GSHP quotes for my detatched house in 2021; £18,000 was the cheapest. Finally went with whole-house infrared panels that cost around £7,000 including a ring circuit to the distribution board. It varies, but around 22 kWh per day so far in November to heat the whole house including water tank. Each panel is controlled via Smart Life app, either individually or in zones - and of course no servicing costs ever again. If I were building a house from scratch now, though, a GSHP would be a no-brainer.

Interesting to see your figures. I guessed similar with heat pump at £16k, power walls at £8k each and £11k solar install. I think the ROI will be over 20 years as you dont have the heating on 12 months of the year, more like 5 months. So you can at least double the ROI but i doubt the hardware will last that long so another £40k to spend out in 20 years if you are lucky. Its not water into wine…. Its wine into drain cleaner

I’ve had solar installed since 2014… still haven’t seen the pay back on that investment. So I don’t see how anyone see the pay back on GSHP or ASHP. Because anyone who believes electric prices will go back to what they were, are living in a bubble with very thin walls made from cheap washing up liquid! @Grant Thomas I don’t see how you’ve worked out the payback on this investment other than your battery storage doing all the actual saving and nothing more.

I’ve also had some recent quotes for a heat pump and a hot water tank, currently on a gas combi boiler, and the figures just don’t add up, all these videos go on about the improvements, and I can tell you I want off of gas as soon as I can, but the initial costs just don’t justify the outlay. And the impact to your home in terms of space being taken by these devices is what you don’t see. I’m currently thinking that solar and batteries seem to have a more reasonable return (not Tesla boy they seem to get more love than they deserve), and possibly also moving to a smart hot water tank but leaving a smaller gas combi boiler for heating, but everything is moving so quickly it’s hard to know how many improvements will be appearing to this equipment in the next few years. So for the time being we’ve certainly invested in the Ripple Kirk Hill farm, but moving to electrical heating still seems a little way off for us.

I guess that’s why they’re so popular in Scandinavia then😂