JohnMo

Exactly - makes good new headlines - but more sh!te in, sh!te out news broadcasting

Was typing similar. Well insulated house, floor temp is very often only a couple of degrees above room temperature so as room increases floor heat out put reduces. Once room temperature is above floor temp, the excess heat starts to be absorbed by floor also.

Simple truth BP, Shell etc have huge overheads and cannot make aging assets pay, so once production starts to dip they sell. Been like that for decades in the North sea. So no suprise BP are selling.

If want a short time constant for some reason, you could use Jaga Strada fan radiators, so you can cool also. Cheaper than fan coils, and designed to provide above dew point cooling. Also way smaller than radiators. Seems a strange design choice to do 150mm concrete then another 100mm screed on top.

That's me told - I'll ask for your opinion first next time.

Make the rafter long enough to have PV panels in landscape and do the roof in solar panels - if east,south or west facing? No tiles to faff with. Choose the panels well and you could get 6 panels on the there.

Either use ft2 or m2/m3/m. Mixing makes it rubbish to read without us having to convert from imperial to metric. If your airtight do dMVHR, if your not airtight do dMEV

There is loads of oil and gas in the not developed category - so none of it appears on @Beelbeebub charts, because they only include developed. A lot of the "not developed" sites are because they are expensive to exploit, either/and deep, sour or heavy. But at the right price a useful commodity.

Would say quite a bit easier - no referendum needed, still have the politicians unfortunately. But your still only reading the statics you want to see, maybe not a bonanza, but still plenty out there. Most just appear on your developed list. The plant I work on supplied the equivalent of ALL UK industrial use gas the other day, however due to tax burden and it being a 40 year old it's becoming unsustainable, due to reliability, investment needed etc. So plans are in place to cease production in 2029. Yep

That really doesn't matter, you can make a law that requires them to sell to UK PLC at a hedged price. Gas is pretty much done that way as it's the only way, once it hits landfall it is processed and made grid ready and goes into the national gas grid. Excess is then pumped to underground storage on land at lots of locations depending on spot price and released back again based on a high spot price. Oil tends to be stored at a refinery or storage facility onshore and just sold to the highest bidder - that bit could easily be changed. But most of our oil is too good to be fuel oils, so is generally processed into higher value products - but we closed nearly all our refineries. So it nearly all needs to go somewhere else.

That will be a big enclosure of all closed sides. Open sides makes maintenance even harder. My ASHP requires a metre either side and 500mm above, so you boxing in, looks like it would be across the windows. Sorry back to my original comment More you explain it, the more it seems a bad idea - sorry.

See you have an ASHP, that will be taken over by the ivy the first couple of months not trimming it back. Any plants up the wall will have to cut back hard from time to time, you need your walls to look finished otherwise it will all look a mess.

But how much of that £5,000,000 is land cost. Wouldn't be anywhere that in Scotland - land is way cheaper and so is labour.

@Roger440 Just did my maths for this year to date Imported £450 (4500kWh at 10p) of energy, while exporting exported £200 (1700 at 12p), so cost so far is £250. Plus since May earned £92 from Axle, so really cost is £158. Have used 7000kWh which at capped rates would have cost £1800, so far this year I am up £1650 already.

Think the only cost effective way to do an EV conversion is to buy a crashed or low mileage but older EV car and use it as a donor. Kits are stupid expensive, you may as well sell the car.

We only ever cash for the cleaner. Just never use it otherwise, would prefer not to use it for the cleaner either. Rarely even use cards now either.

Tree behind, but panels at top of bank - prevailing wind is straight at the panels

So 3.86kW, so not pence. 3.86kW exported over 6 hrs is 22kWh. A 10kWh battery in winter would be filled from the grid. You basically get a time of use tariff so you get cheap periods. My current tariff allows me to fill at 10p per kWh instead of 27p or whatever the standard tariff is. My array is 4" posts and uni-strut and I used postcrete, easy to move from A to B

Just do AC coupled they use a normal inverter Why I am currently getting 12p looking at Octopus Prime which will pay 16p in peak periods. So would question that figure. If you don't have a smart meter and that's the reason, get one Size battery to suit that consumption, not 5kW Our house started with 3kW of PV, and had a gas boiler, we paid around £180 a month all in, we now pay £52, with vertical PV (winter good summer poor) and 13.5kWh battery. So around £1500 saving a year and I already had PV. Wet soil retains heat better than a dry one, our soil is 100mm thick then sand, we would need almost double the pipes compared to wet soil

How are working out the costs, I keep adding as its so cheap and payback is quick. But I suppose the maths depends on your usage

But that is a pretty meaningless value because it doesn't include the effects of a good or poor frame. Uw gives a way better comparison, then you know what you are getting. Sorry a throw away statement above, it really depends on window size. We have 6m wall of glass, this results in this room loosing more heat that the rest of the house put together. Our window Uw is 0.8, compared to good double glazed being nearer 1.2-1.4, so around 40% heat loss for that wall.

Even better

Should be laying GSHP pipes while your at it!

You can add a cooling coil to MVHR and it will cool the incoming air. You should get a 3 to 4 Deg reduction in air temp coming out of the MVHR unit. But you change the air in the house every 2-3 hours so it isn't that useful on its own.

MVHR and not opening windows... You open windows for cooling mostly, MVHR and any meaningful cooling doesn't really occur due to flow rates being so low.