SteamyTea

As far as I know, you can still get it, and after 30 years it gets paid off. Though there may be an upper age limit. I got one in my mid 40s, and a bursary as well. Just don't get a lodger as you loose all your your CT exception. Cost me £2500.

Been keeping an eye on a couple of them down here. Not fast. Factory built timber frame is preferably the fastest, but as SIPs is really just timber frame with the insulation already fitted, should be just as quick.

Have you considered timber frame, or even block work. Block work may be the safest route as it is well understood in all regions of the country.

You can become a student, drag that out for 4 years on a BSc and teaching qualification, then another 4 on a PhD. By then you will get the winter weather payment. And I managed to save cash when I was a student.

I suspect you would end up with kindling and broken tiles. They are probably trying it on as I suspect it would cost £10k to get it taken away.

That is because I live 100 miles from any culture. Well, if you can call Exeter cultured. I was thinking about this just this morning as I was driving into town to do the banking. If I just drove to work and back, I would use about 4.8 MWh. Not sure if parity us a good thing or not. Interestingly, once I had trained my old lodger, my energy usage was not much more, though one year, I did manage to get my house usage down to 3.8 MWh. Was a mild winter, and I was cold at home.

Really just offset until the country has an true excess of very low carbon generation. But I use about 5 MWh/year for the house and 20 MWh/year for the car. Only 1 car here, and one person.

And a bit over 20,000 in mine. Or, at £1.25/litre £2,250/year. Now shall we compare depreciation, by car is worth about a tank of fuel.

Do you run the van on heating oil? My car uses about 20,000 kWh a year of Tesco's Finest.

Would you loose the FiT payment? You can change energy supplier without it being effected.

Yes, Ed is your man.

Right, shall trust your figures on that, saves me getting them wrong. Not if you are using extra ventilation to cool the place.

So that will be around 9,375 kWh, or the annual output from a 10 kWp PV sytem. Or enough to run my house twice. If it is a 5 kWh storage system, and it uses half of that a day for 'balancing', then that will 900 kWh/year, or £73/year. Am I missing something?

Start one, I like the idea of building your house yourself, bit like @Ed Davies is doing.

That will be 15 kWh/day kW/h is really dividing power by time, energy [kWh] is power multiplied by time.

I think a lot more information is needed. How many people are in the house. How large is the house and what is the heat load. Generally, is a system is undersized, it will not work well. Nothing intrinsically wrong with the technology, unless it is a genuine fault, just that if you need 40 kWh/day to heat your house, and after 12 hours of running the heat pump, it has only delivered 15 kWh, then your house will be cold.

Try using 0.25 m.K/W See if that gives a sensible answer. (What Wikipedia quotes as the RSI value for most timber)

Thanks @Ed Davies Never thought of that when I saw the message that it was not compatible. Yes 68. Not 86

Not sure if I can, will need to look into it later. It may just be a case of using a separate gpg allocation, rather that the plug in. Or wait until they update Enigmail. Not as if it is a rare and unusual thing to use.

Just updated my email application and Enigmail is now not compatible. The Thunderbird version is 86.4.1 Really annoying as I can not open and read my encrypted emails. Anyone know of a work around to this?

My point was in response to where electrical energy prices are heading, not individual usage. 15 years ago, when oil prices shot up, people where talking about $250/barrel being the new normal, but they are still at the long term average of ~$50/barrel. I have a similar sized place to you, and it comes in at about £600 a year with meter rental and VAT. I have (for my own reasons) not bothered to change supplier, though I do keep an eye on prices.

Have you ever compared the total efficiencies between the two systems?

There is a reason that low voltage[1] PV modules are more expensive and not as efficient as standard ones. [1]Not really low voltage as anything under 1000V is low voltage, Extra Low Voltage is really the right term as that is below 50V.

Welcome Not really about voltage. It is about power, the watts, and energy, the joule, also known as the watt-hour. But it really comes down to how much you want to spend. Across the developed world this has been consistent at around the 5% of median household income, for decades. This is mainly to do with government interventions.

We used that in some composite mining rescue gear. Forgotten about that project. Had to make covers for breathing apparatus, they had to be anti static to reduce the risk of explosion.