SteamyTea

I have 5 DAB radios, all tuned to the same station. Total outlay less than £120. Works a treat. I have a 6th radio, that I can take into the garden, and one came with my car. For catchup, I use my phone.

Ain't going to happen, that would be more energy coming out than goes in. The price point is an interesting one. We are now about about £500/kW installed, or about £100/m2. That is about £50/m2 cheaper than a Wickes PVC window.

The industry is pretty mature really. Just not been in the public's consciousness until recently. It is a bit like planting a tree, the best time was 20 years ago, the second best time is today.

There are fundamental limits to the technology (~37% for silicon), and in real terms, we are not far off them. HIT is at around 25% and has been for about a decade. Inverters peak at about 95%, so not a lot not be gained there. I once had a conversation with a lady that had a small wind turbine, a 1 kW one. She was asking me what sort of washing machine to get as she was off grid. She never did understand that it would not do her washing, even 'when it was very windy'.

PV now costs less than single glazed windows and frames. There has to be a point where it cannot get any cheaper as the materials will not get any cheaper. As @Bitpipe says, it can be cheaper than a roof covering, fit them and connect them up later if it is a cashflow issue. Does anyone do a payback calculation between different tiles?

There is a minimum distance that PV modules can be from the ridge. Now I know why.

So an old lightbulb's worth. Seem to remember a heated debate over at the other place about low energy lighting taking away the heating element.

Not even that. Small ASHPs are reasonably priced, a 30 kW one isn't. In some ways, people that consider swapping should do some research they should start with a basic energy course. I tried to get funding for one a decade ago, was told there was no interest because it had numbers in it.

Air tightness can be looked at in isolation. Where your insulation is, and what type it is, also has to be taken into account, as does humidity control. So it is not a simple case of just filling the gaps on the inside, it is why houses have breathable, but wind tight wrappings and vapour control membranes.

Yes, not sure how to get that message across, maybe a pointer to Zoot's thread, can that be retitled 'How to make your ASHP fail'.

I think ICE shows the basic manufacturing energy/carbon costs and the delivered costs on many of the products. Generally, transport is a very low cost, though a very visible one. Also, we pull down very few houses, I think a house built today will still be about, on average, in 500 years (read it somewhere, years ago)

My first thoughts, keep it on all the time, except when it is DHWing. As a general aside, all this nonsense about kWh/year is of little use. What is needed is 2 metrics, the power to keep the place warm at different temperature differences, so: kW/K And the power at different CoPs, so: kW/K @ x CoP

Do the numbers, if the ACH are a small fraction of the total losses, then there is little to be gained i.e. say 2 kWh/day via air change and 30 kWh via fabric losses.

https://drive.google.com/drive/folders/1vHpIGkpgkplmItn_0IaPXQ-5Fxnr08Wz That is the link to the University of Bath download. And it is Craig Jones, not Steve Jones.

But most would have gone to an incinerator to make electricity, possibly. And there is a bit of a myth that all timber eventually rots to CO2. Not the case, much is left as soil.

Won't getting a 3 Phase supply get around the problem easier?

Not many do.

(expletive deleted) me sideways in the back alley crack

CT1, sorts everything.

I don't think there is any way to know the size of the induction coil without looking, not sure if the manufacturers want to show how simple the insides are.

One things, is there enough water pressure, some washing machines are sensitive to this.

Is there data in the ICE from Bath? If not, email Steve Jones, he is very approachable.

Hopefully @ProDave will be along before then, he knows about this sort of thing better. And hot to earth things to stop the voltage floating. There are different electrical regs for caravans and outside stuff from generators.

Is the generator a pure sine wave one? Probably not. The washing machine electronics may not like anything else. Is the inverter big enough, and is that also a pure sine wave one?

Yours is a Carrier unit. If you buy from eBay, make sure you can get spares easily, i.e. control boards, it may be a zero volt switch, and command units, or you may not be able to configure properly. And get the original manufacturer's manual. And, and, check what refrigerant gas it uses.