SteamyTea

If you kill a tree root artificially i.e. quickly, can this cause problems with the ground sinking/shrinking?

Try this. An architect, like a medical doctor, needs to be registered to practice (while calling themselves an architect) https://arb.org.uk/public-information/before-hiring-an-architect/architects-register/

No. You may have problems when you come to sell up. I think your neighbour is doing an illegal extension and thinks that none of the rules apply to them. Have you checked out that their architect is registered?

Certainly not written by a solicitor. Something does not seem right here at all. I hope you have decent building insurance with legal cover.

Ignoring my dislike for wood burning, how many kg/day do you burn? Knowing that, and PV performance for Skye, it should be easy to work out what size PV system would be needed to offset it.

I think your energy usage seems high. What are you basing that on? You can, with some careful design, get down to 50 kWh/m². Small wind turbine tend not to be very good, and are expensive. PV, though pretty poor in the winter is the way to go. With 5 acres of land, and assuming you can get planning permission, you would be better off spending £15k on a ground mount system. But as that is half the cost of a grid connection, I would go with that because another £15k will go on battery storage. Or just get a small CHP unit and get your heat and power from a diesel tank.

Wash your mouth out with soap.

Don't seem that long ago to me. But then neither does 1979.

I have stuck with EDF years now. They have never been the very cheapest, nor the most expensive (I am limited in choice where I am). When I have looked at switching, the differences are so small i.e. £9 saving last year, it is hardly worth the bother. EDF have had some good deals, and they are backed by the French government, and I suspect the generation side is totally different from the retail side.

You could sell the oil to passing motorists. 1.40 a litre.

Does party wall agreement come into this?

Yes, my nuts.

Yes, you can also get an advantage on cloudy days.

Have you run different angles though PVGIS?

Yes I was, been a long night at work. I cant even work out how much water is needed to cool stored water down to an acceptable shower and bath temperature tonight. Time for bed.

I made my own with a CurrentCost meter and a Raspberry Pi https://www.ebay.co.uk/itm/154626231081

Are you staying in a half finished project without water at the moment? If not, measure what you use where you are currently bathing. Your bathing habits are not going to change much.

Most UVC don't mix the water in the cylinder with the water you use. Basically just a pipe coilled up that the cold, mains, chlorinated water passes though while picking up energy from the heated water in the cylinder. Non of us, who have looked, have yet found a proven case of legionella disease caused by DHW, anywhere in the world. It is a much more complex organism with a very strange lifestyle/life cycle. I think the context was that a larger cylinder can store water at a lower temperature for the same energy storage. This again has to be taken in context. If you loose an extra 0.26 kWh (not kwh) for an extra 200 litres stored, then as a fraction, the losses are lower. There is an odd methodology used in the heat loss calculation of DHW, so take it with a pinch of salt anyway.

No help what so ever, but as 7 have voted, half votes must be allowed.

Get an energy logger on it, then see what is really happening. They are not too difficult to make and can be very illuminating.

Measure it, only a jug and a clock. If you want to get posh, take the temperature as well. How are you going to heat your water, system boiler, ASHP?

Call the Mitsubishi technical help line. 01707 282880

they've suggested a 25l buffer tank What is the volume of the smallest circuit, and what is the minimum volume the ASHP can handle?

Just design your DHW system so that you can divert excess PV power to it. Diverters are not, in the scheme of things, that expensive.

Assuming that is a standard meter, it don't log the time of use.