SteamyTea

PV modules (the individual cells) are fixed voltage devices, basically diodes), as @JohnMo mentioned earlier, it is the current that varies with light intensity. Modules are tested to a standard format, "The reference condition called standard test conditions (STC) is commonly used and assumes 1000 W/m2 solar irradiance, AM1.5 spectrum, and a cell temperature of 77°F(25°C)" (more here), it is not difficult to exceed those conditions (even in the UK), so a lot easier to put in a safety factor. Putting cables into conduit can affect the amount of current they can carry (similar to passing cables though insulation). There are standards for this as well. DC cables also carry, for a given size, a different amount to AC cables (usually more but not much in this situation, more at higher voltages). On this site, there is no price difference between them.

Yes, do the long runs on the DC side. Ideally you want DC isolators at the panel end, and then depending on inverter, maybe on nearer for convenience. A lot of new inverters have DC isolators built in. An inverter can generate a lot of hot air when running at 100% plus, so if indoors, make sure there is adequate ventilation. AC isolator is usually near the inverter and are nearly always used to isolate before the DC (takes the load of the inverter. As for cabling size, go for minimum of 6mm (even if the panels have 4mm tails). The DC losses (below 2% ideally) will only be a problem when you are generating close to maximum, most of the time you will only be at a small fraction of peak amps. Does depend how long the run is though.

See if you can get the chemical data sheet for the gunk. I fancy a retirement job and setting a machine up and running it for a few hours seems ideal.

Back in the 1980s we used to play a game called 'Plausible Answers'. Should have copyrighted the format. 'the Caspian Sea is 2 foot deep at its widest point' is still my favourite. It is worth asking AI what the rules of 'Mornington Cresent' are, and specially as the rule book was withdrawn in the early 1970s. That was a traumatic day, front page news for 15 minutes.

I trust it as much as Wikipedia, it is OK if you know the answer, but just need a reminder.

So all surfaces get a coating then? The ceiling will have as much on it as the floor.

I think, based on this formula, t=(2h/g)0.5, that better results would happen before plaster boarding. I also think that the higher up the machine outlet is, the longer the latex will stay suspended in the local atmosphere.

As is sciences want, it is not as simple as that. There are polar forces at work also. These can cause molecules to clump together, with H2O molecules forming a tetrahedral shape. This increases the effective surface area, which allows more water molecules to be attracted, it also means that smaller forces per unit of surface area can cause them to move. But I don't think we need to worry about that in a ventillation system. Probably a hole in the wrong place.

I am not sure, but would think, from engineered properties, that the polymers form longer chains, do not need pigments, UV stabilisers, are more flexible and use water as part of the curing, as opposed to just drying. When water based paints dry, the water molecules evaporate, leaving just the base matrix. That matrix, in the case of water resistant coatings, shrinks and replaces the positions that were occupied by water molecules with voids that are smaller than water molecules. That is what makes them water resistant, water cannot get in. How chemists actually create this is a total mystery as they have about 20 words, which they just rearrange into compound nouns, to make things that are incomprehensible.

To the best of my knowledge, a water based latex sealant is atomised, then finds it way out via any cracks, slots and holes. Now pure latex does not have a very long service life, maybe 5 years, but hybrid siliconised latex can last 30+ plus years. I suspect they use the latter as they are both pretty cheap materials.

I have now got 5G with Smarty (3) and have had 4G with them for a few years now. £16/months with no restrictions and never made a voice call, ever. I use a new 90 quid phone as a hot spot. Works very well.

Bit late to this, but as I live on my own, and my home hours vary widely (and always have), I have tried most heating schedules. For me, on E7 heating, the lowest energy usage is to just heat when I am in with a fan heater (my house is small and uses very little energy). There is a problem with this method, and that is high relative humidity and condensation. I manage this with ventillation, but is does need to be managed. Until last winter I used my storage heaters (they work well as I set them up to work properly and despair at people at work who won't set theirs up properly). This eliminated the condensation problem, and gives me an evenly heated house. The financial cost was similar, so may go back to it after this winter. Storage heaters, once set up correctly, deliver thermal energy in a similar way to a 'wet' heating system set to a low flow temperature. Always remember that temperature is not energy, it is the way that it is delivered that is important.

Has AI removed the muscular man doing the painting.

I am close by today, but don't fancy the 7 hour drive back in the dark.

Do you mean the nacelles? If my 35 year ago experience in composites is anything to go by, then it could be, in part, material prices. I had a run in with ICI about chemical prices becuase I could get the components made in India, then delivered to any European site, cheaper than I could buy the materials. The Indians were using the exact same materials, made in the same plant at Teeside. Out of spite, and because EU free trade started, I changed to a German made polymer.

I don't buy any of the biscuits.

Happened once, along with Christmas. Don't beat about the bush, say what you really feel. (I live in a Duchy)

No shit Sherlock.

I think the public should be smart enough to realise that nothing happens quickly. I think the real frustration is the changes in policies. It makes it impossible for any infrastructure planning. This may be a tactic that the denationalised companies use, do nothing until there is a crisis, then steamroller the government into getting their (the companies) way.

The legislation needs time to filter though the system. I was at a Transition Town meeting about 20 years ago, the MP at the time was Matthew Taylor, he did a fascinating, non political, monologue about why, when the government says something, you never see any action on the ground. It gets watered down, corrupted and sometimes ignored at every level. I don't think he was cut out for politics.

Until recently, England was not allowed to have windturbines built. Not the developers, the DNO/Energy companies, locals or users fault, it was legislation. (I have many turbines down here from the pre legislation days, no one mentions them these days)

Why. Surely a nation what to export to earn an income. There is no difference between export electricity and whiskey, except whiskey kills more people, and smells worse than the resins used to make turbine blades. People bang on about how we do not have a manufacturing industry, why is Scotland not making wind turbines. There would be a good local market, many good engineers, experience in the marine environment, energy experts, plenty of old industrial sites ripe for redevelopment and a huge nearby market. I put this same suggestion forward down here, all I get is blank looks.

What I wish would happen is that they stopped drizzling these reports (or how they are reported) with weasel words. Terms like 'shovel ready' are a (expletive deleted)ing nonsense. Our electrical infrastructure needs a certain amount of redesign and renewal, based on need, not poncy reports to politicians. A quick search shows that by 2035, between £28 and £35bn need to be spent on the main infrastructure. I wonder how much of that is spent on getting planning permission, I cannot seem to find a number for it.

And charged too much

does he go to AA meetings, and I am not on about the Automobile Association.