SteamyTea

I thought it was a good idea once, then I looked at the formula. https://www.engineeringtoolbox.com/flywheel-energy-d_945.html

Since the late 1940s when the national grid came into existence, we had relied on spinning devices to synchronise each other. As we move forward, we may well go back to DC bulk transport of electricity, synchronised by a central system. The article paints a rather bleak picture, when in fact it is showing that we can cope with vast amounts of unregulated generation. It has to be remembered that the European electrical grid is designed similar to the USA grid, and not like the UK grid, which is almost a radial circuit. As @kevinm points out, we have mechanical systems in place already for grid syncing, there is one next to a local collage down here. These are relatively cheap bits of kit, and with the old introduction of cheap chemical storage (batteries) can alleviate most problems. Also worth pointing out, as @joe90 has, overproduction does not happen too often, and distributed, unregulated (micro generation) automatically disconnects, or at least limits, delivery when there is a problem. It is early days in the renewable generation journey and we must not fall into the trap of throwing the baby out with the bathwater, which the right wingers with financial interest in fossil fuel generation industries want us to do.

Part of the problem is that UK house buyer are an ignorant bunch and will only stick to what they know. That is bricks and tiled roofs. The poor quality of the UK housing stock is basically caused by very bad management and terrible training.

Barbados?

Fit an A2AHP and make up some secondary glazing with cheap sheets of clear polystyrene. And do something about the underneath i.e. fit a skirt to stop the wind lowing under it, then store some rolls of loft insulation under it.

That is interesting, lower CO2 cement and steel at the same time. I read, or heard, that ashphelt/Tarmacadam is the most recycled material by volume, mass and price. Just need to start working on that.

Or have a good laugh. He should talk to some engineers as well. Why did you not send that as a PM. Tempted to get a burner SIM and send messages.

No idea, never payed for a SAP

As in what PRICE are people paying to have an assessment carried out?

You really need to go back to first principles. Find out the timber type (probably a pine), the lengths, probably 0.15 to 0.2m, and the total area that will be covered. Then find the thermal conductivity of the timber, somewhere between 0.14 and 0.22 W.m-1.K-1 depending on grain orientation. Then convert to a U-Value. W.m-2.K-1 = 1 / (length / thermal conductivity).

The Calvin Cycle. Just yesterday I was chatting to someone about it.

I am a bit confused to what costs you are referring to. Is the cost of the SAP, or the cost difference of running the house. Accountants and economists have different ideas about what price and cost are. In science, one comes up with an idea, think up ways to model it, then test it. If the model and the test results are similar, then all well and good, if they are not similar, then a rethink is needed. It is not unusual to have higher and lower bounds on test results. If the model results fall within these bounds, then the hypothesis is sound (until proven otherwise).

I looked into it a few years ago and found some government figures that showed local area usage and tariff details. Then cross referenced it against a similar housing database. Also, at ~4 MWh/year usage is low, compared to the national average of ~20 MWh, of which 2.5 MWh/year is just electricity.

E7 places tend to be small, and often very small flats.

General point. Could you buy a local place for the cost of rent?

That bit.

It is what I always do.

https://thepihut.com/products/esp32-s3-development-board-with-1-28-round-touch-lcd

But some at the same time.

What I have been doing for 20 years with E7. No capital expenditure either or complicated controls.

Try asking the LA's Building Control.

There are a lot of things you can do to a static park home to make them comfortable. Ebay has loads below 5k. Spend 2k on one and it will be brilliant. I lived in one in 1982, was lovely.

Is serpentine similar, we have loads of that in Cornwall, and know how to make an area an industrial wasteland better than most.