SteamyTea

I got half of that.

Not had a problem either (except that once, which was probably my fault). May have to play about and see if it is the CPU speed or the Core Voltage that is the true key to the problem.

It is 4 kW. kW is power, kWh is energy. kwh is nonsense.

4 years at Camborne School of Mines maybe.

We loose ~5% of the natural gas due to distribution. And then there is the processing losses, which are less for large users than domestic users. Electricity is also more useful than gas. If we still had gas lighting in our homes, airtightness would have to be above 10 ACH, not below it. I also doubt that many gas boiler actually get close to 90% efficiency in reality.

Solar slates are the expensive, low performance option. Much better off looking at traditional modules. There are a number of methods to have them fitted. As for trying to heat a house with them, that is going to be hard. Winter production is so much lower than than your space heating demand. Heat domestic hot water is your best option. A dime cylinder is all that is needed. Car charging may be useful, but there is generally a minimum load below which a BEV will not charge, so you may be importing electrical energy as well as using all the PV production. Depending of your electricity tariff, that could be expensive.

Rounding errors when converting from imperial to metric. A kWh is based on SI base units.

No login problems today at all. Fingers cross @Radianhas posted up the very best solution to this problem. I may have to go and post it up on the Raspberry Pi forums.

1 UK Therm = 29.30710701583 kWh 1 US Therm = 29.3001111 kWh

Oh right, thought you meant on here.

I have one, the tips are crap. Just today I have bought some from eBay. https://www.ebay.co.uk/itm/283586511272 No idea if any good, shall report back if I remember.

Can you edit blogs after half an hour?

That is where it is then. But eyesight, or fat fingers.

9% per metre, not at 150mm. But my mental arithmetic may be wrong as doing something else at moment. R = 0.15 (m) / 0.035 (k) R = 4.286 U = 1 / 4.286 U = 0.233 R = 0.15 (m) / 0.032 (k) R = 4.288 U = 1 / 4.288 U = 0.233 Is that right?

Is that really enough of a difference. 0.02W.m-2.K-1 on a 150mm of insulation. That is lost in noise and fitting errors.

Send them an email. If you get a reply, tell them I am available.

If all the numbers, rather than the units, add up, then probably a twat programmer doing the user interface. Had one do one for for a mate, did the classic kW/h on the y-axis. No matter how much we tried to convince him it was wrong, he would not accept it as his mistake.

Why do we make it so much harder than it needs to be.

I got the posh one with the optical counter.

See, we have saved you 40 quid a week already.

Thought this was going to be about my vanishing, government backed, pension.

Count the pulsed. And you may want to get some of these. My next project. No idea how to turn the image over on a phone. Shall see if I can put it right in PC. Hopefully sorted.

I think this goes back to cable losses. The generation meter had to be within a fixed distance if the main meter. It is a decade since I was involved in all this, so memory may be failing.

Traditionally it wasn't. Why the FiT system originally used 50% of total generation as the "deemed" export amount. I think most smart meters do now show exports. Assuming the use of a couple of dumb meters though, you can sense the permanently on LED that shows the main meter is working in reverse. Then read the pulsed in the generation meter, assuming no local load, or fit a third meter on the incoming tails to measure exports. As far as I know, dumb meters allow flow in both directions, but only log in one direction.

I find putting a paper bag over my partner's head works as well. Everyone is a winner.