SteamyTea

So no problem paying the MCS to have a connected PV system. Or a plumber to fix a leaky tap. Where I agree is that some products and services are underpriced, and other are overprices. Frequently it has nothing to do with supply and demand, more to do with customer ignorance and an ability to say 'no'.

There are a lot of 'deep greens' that think we should, and other biomass. They are the ones that did not study science, but quote it a lot.

For the climate, not much. There would still be environmental problems, mainly conservation of nature, but that is a problem we will always have. I did work out how much heating of the atmosphere our current global energy use would increase it by, pretty sure I posted it up. I can't be bothered to find it though.

It is the burning of hydrocarbons that is the main global problem. The secondary problem is the geo politics. If energy was as expensive as many claim, why are there so many cars, and large cars, on our roads? I just filled up with diesel at £1.69/litre, roughly 16p/kWh. Am now having a coffee, it has 0.021 kWh of energy, cost £2.95. £140/kWh. I really am a (expletive deleted) for buying it.

Yes, but the emissions will be a lot lower. Small emissions are easier to clean up, why there is all this talk of turning a third of the planet's surface area back into wilderness. Many plastics can be made from non fossil fuel sources, cellulose is one, polyurethane is another. Smelting iron (and other common ores) predominately requires thermal energy, that can come from RE. Change common ore to virgin steel requires physics and chemistry, so can probably become much more efficient. There is an old joke about the metallurgist professor knowing the difference between the common ore and the virgin steel in his lectures.

I didn't know we had Tory donors on these forums It is cheap, so cheap that we throw it out the windows of our homes, drive 500 metres to a takeaway, where they have a 100 kW range burning most of the day, and an extractor to suck all the air out the building at a rate of tonnes/hour. A Big Mac costs £5/kWh (2.3kJ and £3.19). Now that is value.

It really comes down to the general publics ignorance and gullibility. It is what politicians and journalists rely on, it allows them to pull the wool over people's eyes. When it comes to deploying RE, it is not the technology, or the power companies, it is our hopeless planning system, that is what has to change.

What happen?

Will need a lot more information. Size of the house will help. Have a hunt around on here for Jeremy Harris' heat loss spreadsheet.

Post up a picture.

That is about half my usage, and if I had a heat pump, it would cover it all. Trouble is, I would have to cover my neighbours roofs in PV to supply just me. Should have jumped on the 'Roof for Rent' scheme and that 200 kWh would have earned me around £120.

22 kW

That is the difference between us.

Wot @JamesPa says. It is worth getting an IR thermometer and you can get fairly good weather data for your region from WeatherUndeground.

Some of these inverters have a minimum load, wired in one that would shut down unless it was greater than 200W. Try a heavy load on it.

is that true, it is a link to the Daily Mail. Or did she really just prefer her internet connected vibrator.

You are going to have to post up a tutorial on this one day. I intend to work out how to make an ESP2866 (only because I have some) go to sleep until the LED on my meter flashes, then send the data to a hard drive somewhere probably on my TOR webserver, which is working incredibly reliably so far. Triple encrypted all the way, and no need to pay anyone for web hosting.

If your system is zoned, one of the water circuits will have the smallest volume. If that volume is smaller than the ASHP can reliably handle, then you will get a lot of short cycling of the ASHP. Get rid of the TRV in the summer, they are not needed.

Are you using TRVs. Have you checked that there is enough volume in the smallest circuit.

They show lovely cooling curves. May just be an offset. You can use anomalies. Take the mean and subtracted the variables. Was the kitchen extractor left on.

May be loosing twice the amount of energy though. Temperature is not heat (the old word for energy). But yes, it is really only worth comparing within the same temperature ranges, and then the energy losses will be the same, one the differences in form have to accounted for. A wood burner will (expletive deleted) it up though, half the time it is so hot the energy is going up the chimney, the other half of the time, it is cold, and draws air back down the chimney.

Like a present on Christmas day. The novelty soon wears off.

Yes. Why it is such fun. The trick is to ask a question that can be answered, and tested.

That does seems to need improvement.