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Muhendis

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Everything posted by Muhendis

  1. Global House seems to be the go to place for solar equipment these days.
  2. A bit like this? Perhaps you could adopt something similar.
  3. Good thinking but I didn't do that and it still works. Do you think the infrequent use may be the reason why it works without plastic or shade cloth (whatever that is)?
  4. Those solar panel mounting brackets are a neat idea. I notice they are fixed to the trough section of the roof material. Do I also see silicon sealant and rubber washers? Good bit of engineering there.
  5. Before my house was built, it was nothing more than a 1 Rai x 1 metre high island of soil. I had a truck wide slope adjacent to one corner which went to the original land level. I guess the slope must have been about 15º. After the next rainy season when I saw it again the slope had developed some water channels and was eroding. My fix was a large lorry full of mixed aggregate which we spread over the slope filling canals and making a decent looking gravel road. We smoothed it a bit by driving my car backwards an forwards on it. That was about 11 years or so ago. The stones are still there but invisible below a layer, added by nature, of soil and grass which took about a year or so to develop. It's a totally non-professional approach but it works.
  6. Alfred Hitchcock would be proud of you.
  7. Yes. Or any where else where the metal is ≤2.5mm thick.
  8. Also at Global house but three times Lazada price.
  9. Are you not using some of these? They clip to the edge of the panel for holding the cables up nice and tidy.
  10. When the sun is a bit low in the morning and later in the afternoon, you can be sure there is a significant difference . At midday the difference is about 5% but the shading of the dust in the earlier and later parts of the day can reduce the output to half what it should be. I did mine a couple of days ago in the early morning and the output shot up by double. I use slightly soapy water and one of those mop thingies that can spin around in it's bucket. I will need to revisit to remove a few spots of bird droppings which seem to be etched into the glass.
  11. A milliohm meter could be useful, but to check one of these joints properly really calls for high current and a volt meter. e.g. Pass 50 Amps through the joint and measure the voltage across it. Application of Ohms law will then give you the real life resistance and power loss
  12. Phew. Thanks. You really had me worried for a moment.
  13. The Earth is what!?
  14. Un-skilled people who join this forum are more advantaged than yer average DIY'ers. There is stacks of help and core knowledge here so there should be no reason not to jump in and do it yourself so to speak. Help and support is here if needed.
  15. So it must be down to you that we are having such a dull, overcast day today.
  16. Please excuse but what is SPD?
  17. My old chemistry teacher looked like that too but this was pre Alf Garnet. Ours got the name "Bilko" as in the cartoon character Sergeant Bilko.
  18. If you are anywhere near Buriram, Ruangsangthai have some 350W (I think) for 3,250 each.
  19. I didn't know damp was a problem. I have always thought oxygen was the nasty one. I can understand the electrolysis caused by different metals but that is usually in a solution of dirty water. I once tried lubricating grease but that didn't help at all. Copper oxidised quite nicely after a few weeks.
  20. I use Vaseline on my terminals and bus bars. keeps the copper shiny and bright for ever.
  21. Good point. This just goes to show how successful these original British products are. I don't think ownership of the companies reflects on the quality of the product in this case.
  22. About 5 years ago or thereabouts I placed an order for a sizeable sodium ion battery for my solar system. Never got them though because the manufacturer in Canada (I think) went under. Didn't cost me anything though. You might like to look at Faradion on the internet. They are producing some pretty good kit. some of it is very big and is intended for stationary installations like solar ESS or remote coms installations etc. There is also sodium battery technology for EVs from Faradion. https://faradion.co.uk/
  23. You're right but it would probably depend on how the airline decides to (gradually) do it.
  24. Well done Crossy. It would have taken me ages to get that spelling right.

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