MikeSharp01

Ok so what is the wall made of? You could drill through, and afterwards make good, the 6cm pelmet so as to drill into the wall square then fit a rawl plug, or similar then screw in the hook 80mm should be enough room to do that.

Audio, especially the MP3 style stuff has very low bandwidth demand, even the Tidal studio quality is not much more hungry, the latency is the issue and Sonos, other systems EG Naim are available, deals with that anyway so I can't quite see the need to wait for WiFi 6

The 'ideal for double thickness Plaster board' bit gives away the pull through issue you might experience with single layer stuff. 12Kg is probably too much for a single point on a single layer of PB. @Adsibob you are probably going to have to spread the load. When I needed to do this, although my need was only a couple of KG, I cut a slot in the PB slid a piece of plywood in over the place I wanted the load, secured the ply with PB screws from inside the room, fitted the 'hook' and then made good the slot with easyfill.

If you have some airflow through the beads then although you have insulation you don't have air tightness is this unimportant?

Yes but 2% feels like a lot of mW in the case of London, can you get that from a few weirs? It seems there are 7 of them on the thames: https://www.shareable.net/a-people-powered-legacy-community-hydro-on-the-river-thames/.

Wonder what the definition of large format is. 600x600 bigger or smaller?

You can get mortgages on land only, so you could go almost anywhere for that and then pay that off with a self build mortgage when you are ready.

Does not matter who goes first its the after you have gone bit that matters and is a real challenge - documentation obviously helps. For those creating code you don't just need to maintain the target device but also the development environment, which is increasingly difficult given the continual need to move it from one PC to the next or keep a special PC with it on just in case.

What about looking at a monthly pattern (well it is close), did it also happen on the 6th December but you not notice it, or could it be the router leases timing out / not renewing somehow - there seems to be quite a a bit, no pun intended, on this on the RPi forums.

I am no architect so please take my thinking with a pinch of salt. It does look a bit 'complicated'. Cannot see why you need the two doors in the corridor to the kitchen, (lounge exit - which would create more functional space in the lounge if removed & kitchen entrance - which adds nothing other than complexity in my view) - many like open plan living and no doors are a hint at that and would allow a view from the Lounge to the garden. The kitchen does feel 'pinched' there is no seating / dinning area there so not sure where you intend to put yourselves for eating - unless the run beside the dishwasher is a bar of some sort. So, overall, I think making the extension longer is a big plus.

And half a wind farm in a force 8 gale to get it to full brightness?

Wonder what the trick is to sound proofing them? We have one on our Utility, not yet fitted so I could change it.

Welcome to THE forum for people like us.

Farnell have been doing this for some time, they call it a handling charge - I save up my orders.

Nope - but we need to solve their problems or they will become ours. To do it we perhaps need to understand that there are many things in life that don't have a financial payback yet we still feel the need, perhaps mainly through social pressure, to do them nonetheless, EG Children, Cars, Holidays. To tackle this problem we do need to cohere and that is either a job for government, who as we have already said seem congenitally incapable of showing any sort of leadership on the matter, so as to make us pull together OR a small band of committed activists capable of ensuring we can collectively smell the coffee! There are bigger risks it is just they are not that well understood or recognised. Not moving forward together will ensure we all are, one can see the elemental approach to the status quo as classic defender mentality at work while this time, unlike most situations in the past, the attacker is the size of a planet!

It seems that there are 3bn people on the planet who use less energy per year than a standard American fridge!

Hope dies last!

Totally understandable and while that would be a classic tragedy of the commons example. We have known this for millennia. Aristotle said "That which is common to the greatest number gets the least amount of care. Men pay most attention to what is their own: they care less for what is common." If we can make it payback early and in all dimensions then that would be ideal although we would then have to face up to how we make it affordable for all the planets residents. Yes

Not quite what I said - the payback does matter but it can be to our children's children.

This is also becoming a difficult point and is somewhat tied up with the much more 'wicked' problem that is climate change and our individual responsibility for it. I have said here before that although payback in my pocket would be a bonus a payback to the planet, eg my offspring's offspring, would be enough for me. I appreciate that this may mean us thinking more collectively but hey, and to bowdlerize George Washington - actually bowdlerize is perhaps not the right term, "If we do not all turn the temperature down together we will assuredly fry separately"

YES...but the basic physics is sound, which is probably why people keep banging away at it, you can, after all, store a lot of energy in a ton of sand (most things really) in a variety of forms, kinetic & heat for instance, and energy availability shifting is the holy grail, its just getting it there, keeping it there, getting it in & out efficiently and all for a reasonable sum that are the problems! The reasonable sum gap might be closing a little as energy costs rise and so close it.

That's an interesting read - 23T of water and you cannot make it pay.

Make it a basic cube and then use vacuum panels for insulation.

As in keep the oxygen input low and burn slowley - so letting it rip, as in force feed / allow free running oxygen, is a good / better thing?

Sounds like a good plan.