SteamyTea

I don't think there is an increased risk of leakage with an inroof system. May even be less of a risk than, what is in effect, a retro fit. If you have closely watched s PV system being fitted, you will know what I mean.

May only be a case of changing the resin. You may find another use for the polyester, make a boat, or a pond, some guttering. Or sell it to the Boy Scouts to make canoes. Just thinking that the rain is going to be on and off for the next, I don't know, 40 years.

Never used it, or seen it in action. But I have used PU resins a lot in the past. They are tolerant of moisture, some actually need it to cure. I seem to remember that they are more viscous, so may seem a bit alien to people that are used to polyester, and I am not sure how easily they break down the binder in the mat. There are different types of binder for mat and woven cloth does not have any at all, so that may be an option. Call them up and ask for a sample. You are on the wrong side of the country too.

Or you could change to a polyurethane resin system that is moisture tolerant. If you were not at the wrong end of the country, I would come and help, be fun to try out a new system. https://www.apolloroofingsolutions.co.uk/product-overview/single-component-pu-waterproofing-system/

I agree. I hate them. When people wash dishes by hand, how much water do you put in the sink and do you rinse stuff?

Slovin's Formula n=N÷(1+Ne2) n = number of samples N = total population e = error tolerance Now you should know how many block you have, and taking @TerryE idea about tolerance on the U-Value, you can set your tolerance level. Make up formula in Excel of x and y values, where x is the number of blocks long, y is the number high, then assign a random number to each. That is then the position where you need to sample. Avoid any duplicates, but do not avoid adjacent blocks. =randbetween(1,x) =randbetween(1,y) Easy and interesting

When it comes to shifting parcels, I use Parcel2Go, always amazed how cheap it can be to send stuff.

A mate of mine works in the AD industry. He works in $100,000,000 projects. There was a couple of chancers based near Coombe Martin, with the help of an Irish middleman, that ripped off someone over at the other place for £50k. Odd though as they had developed a fuel cell that never needed recharging. Just as well as one of them told me that OF never paid back its energy debt.

One way to cut the carbon fooprint of millennials. https://www.bbc.co.uk/news/uk-50294404

It's OK @Sensus, to misquote Gavin Newsom, you are excused from my conversations.

If you stick with your architect, won't he just pass on the design to an architectural technician to do the real work.

I like picohydro, and 2 kW is a useful amount of power. Stick 4 kWh of battery storage on it, that will give you 6 kW, so a usable amount of power. You can run a kettle, a kW induction hob and the oven. The inverter for that lot will be £1500 though.

Can you work out if you are getting anymore power out of the system than before?

Power = Mass x Gravity x Height x Efficiency Power = 0.002 [m3.s-1] x 9.81 [m.s-2] 110 [m]x 0.9 [eff] Power = 1.94 kW About the same as a Honda generator that costs 600 quid. (I may have misunderstood the flow rate)

Yes, an interesting map. Can anyone beat my index of multiple deprivation of 40.2 There is a bit of Penzance, that has 67.2, but only 10.2% of properties don't have gas, compared to 67.8% where I am. Fuel poverty for my area is 21%, for that bit of Penzance it is 20.1%.

No, it is not legal to use as firewood.

Do you mean that, or embodied carbon?

We are in contact with the air, and we breath it in. Can't say the same for my floor, or walls.

Fit a smart meter, that logs exports. Or make up a logger that texts data over. Mind you, If I had a system that someone else was getting the FiTs on, I would switch it off. Then negotiate a price.

Switch the AC to the inverter off first, that takes the load off the DC side, then turn the DC isolators off. Or do the work after 5 PM.

Yes, it does seem the voltage is OK, maybe a problem with Sanyo HIT modules as they are 55V max load modules. Must be a large DC isolator. Had one burn out once when the electrician miss wired one.

The 4300S has a maximum DC voltage of 780V. Do you know what voltage your modules are. Do you have a spec sheet for them? Does look like it would be better off wired as two strings. Have you had any errors showing on the display?

My initial thoughts is that if all the modules are wired in series the voltage will go over the LV limit of 1000V. This does depend on which modules are fitted. What inverter do you have fitted?

May still need planning consent. Which aspect of 'green'? Like Eco, it actually means nothing. My diesel car is more green than an equivalent petrol car to a climate scientist, but to a respiratory doctor, it is far worse.

When I had my EPC survey done, my house magically doubled in size. What should happen, is that purchasers should take the survey seriously, get everything costed out, then subtract the price of the remedial work off the purchase price. May get some sensibly priced housing then. The whole housing market is based of fantasy. That is my rant over, for a few minutes anyway.