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SteamyTea

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Everything posted by SteamyTea

  1. And the $/£ exchange rate. Extraction and transport costs affect it is as well. The oil price is the 'in ground' price.
  2. Second Law comes into play as well. "The entropy of any isolated system never decreases. In a natural thermodynamic process, the sum of the entropies of the interacting thermodynamic systems increases." Or "You get less out than you put in"
  3. The output of the modules are set by a standard test. That test uses lower light levels than even a British summer can produce. Temperatures may also be lower.
  4. Like a bad cut, it shows you are still alive.
  5. Cellulose insulation works well to deafen sound.
  6. That should be a Smelly considering the job it is going to do.
  7. That is the nub of it. I have tried for years to set up a basic energy understanding course. No takers. People carry so much baggage with them that, in all reality, it is not worth doing. Only got to look at the two camps in here, no point education the people that have self installed PV, and no point educating the ones that think it is not worth doing, even though we know they are misguided. All I do now is tell people what and where to buy. Then it is up to them. It really is not hard for most households to lop 30% off their electrical usage, 60% is possible, harder though.
  8. Sorry, missed this earlier. Seems reasonable production. Flat roof systems do perform quite well when cloudy (scattered light). Did you take into account some slope to allow water to wash dirt off?
  9. Why, it is just a temperature distribution, which is close enough to a normal distribution to not have to worry.
  10. Because you did not build it.
  11. I did that and got told off.
  12. All about the Lambertian reflectance. Colour is not the overriding property.
  13. Welcome. There is a reason that you cannot find that much about it, it does not work as sold. Green bling. There is some research done in Colorado which is often touted as the proof needed. Quick look at an atlas will show you that Denver is a lot further south than even Cornwall. The weather regime is also very different to the western side of the UK. Just go for regular PV, roof integrated, and store the excess energy in a thermal store.
  14. You need a Deepa Janga, can wallpaper the hall though the letterbox.
  15. It is interesting this whole IP thing. I do understand that people want to keep control of their ideas and designs. But in the real world, this is almost impossible. Not as if you can hide a house from view. It may be worth getting the people to place the files in a secure folder that uses normal encryption, so that only you (or whoever you give the password to) can use it. There are a number of ways this can be done. There are also methods for tracking images and files on the internet, but I suspect that designers would not be bothered to enforce it.
  16. Regular as clockwork, 7 every morning. Trouble is, don't get up till 7:30.
  17. Interesting. I assume that tax is paid on that, so may be equal to just what domestic customers pay. Taking just EDF because I am with them, is that the UK side or the whole group, which is, in effect, a nationalised company.
  18. Yes. All they are trying to do is minimise the risk of someone copying their designs. Probably because they cannot afford to enforce them. I do find it odd that IP can be applied to standard bricks, timbers and steels. There was a Sci-Fi story about a man that made film props. He was working on a film and the aliens came down and accused him of steeling their design, then took him away. Was MacArthur era.
  19. Those were the days, sitting at your desk, full ashtray, while watching the 'properly dressed' young girls in the typing pool bend over to get stuff from the filing cabinet. Clean air and a PC is not the same. @pocster's hard drive is exempt from this, obviously.
  20. I did a bit about this a few years ago on DriveTribe. We have (well had then) enough spare capacity, without doing anything at all i.e just plug those BEVs in when you feel like it, to charge 3.5 million vehicles. Switch that to night usage and it was 7.5 million. There is currently less that 0.5 million pure BEVs on the UK roads. So till plenty of headroom. The biggest problem is the governments fixation with nuclear power, which takes 25 years to build.
  21. Interesting point. Say there are 30 million houses in the UK, and they each use around 3 MWh a year. With VAT at 5% on domestic energy, that is £42/house.year. So the treasury is taking £1.26 bn a year. Are the greedy shareholders getting this much?
  22. When ICE cars started, one sent the Butler to the chemist to get a can of gasoline. It is really early days in this journey, and by highlighting the problems now, there is more chance that it will be done right.
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