Muhendis

I'm going to backtrack on this a bit. The plywood is still a reasonable idea but, having gained some more knowledge I would supplement that with aluminium foil arranged to have free air on both sides. I changed my idea because I read this:- https://radiantbarrier.com/blogs/news/how-radiant-barrier-works-heat-gain-loss-in-buildings#:~:text=Most aluminum insulation has only,strikes its air-bound surfaces.

That's the sort of thing although it looks a bit thick and heavy. Thaiwatsadu also have some 5mm thick plywood which might be better

What I would do would be to screw some thin plywood or cement board to the underside of those, what look like, 30mm x 30mm steel roof panel supports. This would create an air gap which would reduce heat significantly. If you could also fill that air gap with fibreglass insulation, that would be even better.

Yeah! Go for it man. We're all behind you.

I should think you'd need some of your neighbours roof for that lot too. Are you thinking of selling power by any chance? 🙂

Don't forget to factor in the temperature coefficient. It's -3.5mV/cell/°C from 25ºC. Also note that is not an ambient temperature but rather the temperature of the cell. Each cell produces nominally 0.58V off load at 25ºC so for example, at 35ºC the cell voltage would be 0.58V - (0.0035 x 10) = 0.545V. The caveat is the assumption that you are using P type panels. If you were to use N type panels the losses would be -3mV/cell/ºC.

I've often wondered that too. In the Uk, police officers have a warrant card which, I believe, gives them powers of arrest if they suspect a crime is being committed. In Thailand police seem to need a court order first.

I'll drink to that. Pool table too?

He didn't answer because he probably didn't know. The drop is currently 1% in the first year and 0.5% (or thereabouts per annum thereafter). However that's with the most up-to-date technology. Older technologies generally offer 1% - 3% per year. https://chintglobal.com/blog/n-type-vs-p-type-solar-panels/#:~:text=What is the primary difference,expensive than P-Type panels. This is a difference in efficiency. The best is N type which also has a voltage drop per cell of -3mV/ºC whereas P type is 3.5mV/ºC. This may not seem like a lot but when you calculate the open circuit voltage of a panel at a particular temperature, it can make a significant difference to the maximum input voltage rating of the inverter. Now. This is all very well but over the horizon gallops the PERC panel. This fellow has the ability to add some reverse reflected light to the panes output which increases the efficiency yet further to as much as 24%. But hold your horses there. You can only get the best out of these guys if they are at an angle to the backplane. Mounted on a roof they are not going to achieve the benefits of reflected light. DIY is the way to go. But do some research first.

Is a Russian in Phuket because he wants out from Putin's lying tyranny and he has no desire to kill his neighbours in Ukraine.

This reminds me of the cadmium scare in Chedar Somerset UK. Many years ago, cadmium was found naturally to be in the soil of peoples gardens. The folks had been eating it for years in their home grown vegetables.

Or maybe not enough sex?

I'm inclined to agree with that. If exercising one would be expecting to change ones diet to match. An electrolyte crash as you call it is an imbalance of mineral levels in the body could be due to poor diet or maybe due to kidney malfunction. "An electrolyte imbalance occurs when your body's mineral levels are too high or too low. This can negatively affect vital body systems. Electrolytes must be evenly balanced for your body to function properly. Severe electrolyte imbalances can cause serious problems such as coma, seizures, and cardiac arrest." It's worth noting that if we load up with electrolyte laden food and drink, our healthy kidneys will struggle to keep things in balance. "Just like anything else, too many electrolytes can be unhealthy: Too much sodium, formally referred to as hypernatremia, can cause dizziness, vomiting, and diarrhea. Too much potassium, known as hyperkalemia, can impact your kidney function and cause heart arrhythmia, nausea, and an irregular pulse."

Thank you for pointing this out. They don't produce electrolytes' but rather modify the electrolytes in the blood that passes through them. This is done by regulating ions in the blood. Not too sure if that's resorption but suffice it to say that a healthy person needs no "extra" electrolytes.

Addendum to my earlier post. Batteries are 250Ah each Cost of LC's including transport and taxes etc. came in at ≈12.5K Baht each. For those that may not have noticed, I have 12 of them. Further addendum to the support frame. The steel is actually 50 x 25 x 1.5mm.

Electrolytes are not required to be added to fluid intake. A healthy body is producing them all the time as required. Thats what our kidneys do. Good clean water is all that is needed. I get mine from my RO filter unit at home.

Accuracy about the property value is, for me, irrelevant. Anything over £200k is generally ignored.

That's not what I said. Granted those are the types I spoke of but they could well be available for FLA's Agreed. The specs. put them on a par with Lithium the down side being, they would be a tad heavy for mobile applications.

The inverter was originally a hybrid thing with auto switch between mains and solar. It didn't have a built in charge controller and I didn't want that anyway. My charge controllers are from SRNE and very reliable unlike the original inverter. After a few years of trouble free running it suddenly stopped. There was no dramatic Bang nor did it flash. No billowing clouds of smoke. It simply stopped. I suspect there was a time sensitive bit of software in the control processor. Spares were not available because "we discontinued that model some years ago". I then did what every body does and redesigned the innards. The only original bits are the transformer and the box. I say I redesigned it but out here in the sticks of Isaan electronic components are not quite as readily obtainable as in Bristol UK where I came from. So I hunted around and found a few bits and pieces in China courtesy of Alibaba which would be more than adequate to do the job of converting DC to a switched power signal to drive the transformer. Wonderfull. I now have a low frequency inverter with an output of 8KW and electronics capable of 12KW. I think I should mention I also have a very elderly degree in electronic engineering. Yep. My wife thinks I'm brilliant but that's another matter entirely. Batteries are indeed heavy. I had a couple of kids in the village do the lifting for me. The frame is steel rectangular tube 75 x 35 x 1.5mm. according to calcs it will deflect in the middle by not more than 1.5mm with a distributed load. Bus bars are copper 15 x 5mm which gives me 75mm² which is ample 🙂 for all the mega amps They have to handle. The joints are vasalined which works a treat. Polishing? What on earth for? My LC's do not give off any gas. Efficiency? Don't care. It gives me what I want all day and all night too. Watch this space for the upcoming solar panel change. Mine are knackered after 13 years from a dubious source.

FLA's (flooded lead acid's) are extremely robust but need a lot of TLC because they are thirsty. I had an auto watering system with mine and made my own deionised water. Their life expectancy is in the region of 3 years with a depth of discharge not greater than 35% or thereabouts. FLA's are considerably more temperature sensitive than LC's (lead carbons) For every 10°C temperature rise above 25°C the battery life expectancy is halved. Whereas LC's have a much better tolerance and won't start to degrade significantly until the ambient gets above 30°C Economically speaking, if you consider the relative price difference between FLA's and VRLA with lead carbon the price is not that much greater. VRLA's with lead carbon have a design life of 10 years Gel's with lead carbon have a design life of 20 years What this means is the battery life in float/standby mode.

China. My lead carbons are Gel type as opposed to VRLA The difference is a lot more than subtle as is the price. If you have a look around Google there are now many suppliers of this technology. When I got mine there were very few. I went direct to a manufacturer and did my own import using an extremely helpful agent in Bangkok port.

I'll see what I can arrange for you.

Many years ago I was paid in cash on a Friday afternoon. I could take some of my cash to the post office and put it into a savings account which would earn 4½% Banks would be trying their hardest to get me to deposit my cash with them but their interest rates were less than the Post office (and building societies for that matter). Now here we are in this (wonderfull?) digital money age. Employers pay wages direct into bank accounts. We are asked to use prompt pay or maybe debit cards to pay for goods. Interest on savings is virtually nonexistent. (the banks borrow our money for free) The control we once had over our money, is gone and that has happened in the guise of progress and ease of giving your money to someone else. The speed of returning money when there has been an error is much slower in this digital world than the speed of taking it from us.

Banks will be obliged to pass on information to the revenue department relating to monies received from offshore. The revenue department is thus expecting information to come to them rather than they go looking for it.

Well why not? If Thaksin can do it so can all others.