SteamyTea

I was under the impression that metering was sampled at fixed time intervals i.e. 50ms. So every 0.05s, the voltage, amps and power factor are logged, then converted to actual power. Then averaged out over a time period i.e. 1 hour. Not sure if that is what is meant by 'energy bucket'.

Other way around: kWh

And it will set hard, consistently. Probably quite hard to get decent airthightness numbers without an installed membrane that is specifically for that purpose. The MVHR takes care of the moisture in the house and recovers the some energy.

Have you got some reference source for that? I thought that perspiration, which uses the the latent heat of evaporation, helped cool the body, and that relies on a external heat source and humidity level differences.

My mother's house, 1974 vintage, has hand made bricks, but with a normal cement based mortar. There has been no failures in it yet. One word of caution about hand made bricks, they are hard to match up if you build an extension later. The brickwork company closed down about 20 years ago, so the workforce has probably died off as well.

Yes, not many people live in walls, ceilings and floors, most live in the space between. We also breath the air in that space, so warm enough air helps reduce the bodies thermal losses (which may not be beneficial if trying to loose body mass, but that is another issue).

Why lime mortar?

Seems to be, probably because when the regs were written, UFH was not that common. But that should be of little concern to you, add as much insulation (smallest U-Value) as you can below the UFH pipework. It is not compulsory to work to the minimum standard.

Or something built in West Cornwall.

Yes Somewhere near the extention. OVO wanted an easy install, a simple replacement job. But you seem to have lots of space. Do you mean the 1.4m gap? If yes, then no. No, forget the Sunamp. Self design and install with a decent plumber. You need to do a decent heat loss analysis first. If you have monthly bills, this will help a lot. A kW (power) and a kWh (energy) are the same regardless of the way they are delivered. Temperature is not energy. And KWh, kwh, kw, Kw etc are not the correct units. Always look out for this on any quotes, may seem minor, but it shows a standard of care. The PV, when generating, and the ASHP when delivering will suck up any excess solar power, so timing becomes an issue, so run the ASHP between 10AM and 2 PM will help. A half decent ASHP will give a CoP of 2.5 when heating water, so that is over twice as good as resistance heating. Do that heat loss analysis first though.

I can't find any CoP/SCoP figures on the technical data. That would worry me. Dropping a temperature by 10°C means very little in itself. You have to know at what temperature it is dropping from, and the volume of air that is cooled (technically the mass flow rate of the air).

Shows that vaccination helps reduce symptoms. Still take it easy though.

Yes, several. They will have to defrost less, will cope better with any unexpected (though temperatures are known to swing wildly) cold periods, will heat your DHW quicker and will have a better CoP. The down side is you really need to fit a decent sized buffer tank, but you want to do that anyway. So have a look at the minimum volume your chosen heat pump, work out the smallest 'heating loop', if that is less than the minimum volume, you need to fit a buffer to up that volume. There will not be hardly any downside to doubling the minimum volume, it will reduce short cycling.

So that is the chlamydia sorted, how is the COVID-19

Shelia in town You sick bastard, she had only just left mine.

It's a date once I'm better! Maybe we could go onto Thorpe Park afterwards? Or Windsor to join the Queen for tea, Andy may be there to amuse @pocster

@Onoff Just a word of caution. COVID-19 can take a strange path in people. A day of two of roughness, then a day feeling better, then, and this is the bad part, you can deteriorate rapidly. Take it steady.

Seems a good reason to have a dumb meter, except it cannot log the time you export. But a bit of trickery with ToD and FiTs could pay dividends. I feel that all these ToD tariffs are going to vanish for the consumer. The large companies will develope systems that integrate seeminglessly into the grid and we will not have to worry about it. Will work out cheaper as well because they will fit it where it is needed for local grid reinforcement. It is cheaper to fit a MWh of grid integrated storage in one place than 100 10 kWh distributed system

Don't leave a hole in the ground too long, or deep, @pocster will come and try to build a house in it. Glad you don't feel too rough with the covids.

Possibly. I was in a meeting at the time. You will get 40% of the chemical energy as electrical energy.

PFP Energy went last week.

Both of you need a statistics lesson. Each spin is a new game and previous losses are no indication of the future At least it shows it is random (though not truly random, not many things are). Would be a better game if you could bank not playing and the odds of winning increased each time i.e take away the high or low winning options.

How much is it, then divide by 10.35 [kWh/litre]. Then multiply by 0.4 if you get a proper generator, or 0.25 if it is an old car engine. You could scavenge some thermal energy as well, maybe 0.1 of the maximum daily input. Kerosene will go up rapidly when air flights increase. There may be storage life in aviation fuel and it is being dumped on the open market.

https://www.current-news.co.uk/news/octopus-energy-sees-160-jump-in-revenue-but-still-records-loss-due-to-relentless-investment No sign of over expansion and ambition is there. And the Kraken Technologies seems to be a cloud database with basic AI (which is anything but intelligent at the moment).

What sort of disc or cutting wheel was on this low powered angle grinder, and was the guard fitted, and to what proportion of the disc was fully exposed to finger inadvertantly touching it, @ToughButterCup has a statistically lower risk advantage here with 2 fingers missing. or just take the (expletive deleted)ing batteries out and put them in a charger.