JamesGB

Isn’t that the case for all panels, though? None of them can quote an in situ efficiency because they don’t know where or how they will be installed.

I wouldn’t say that the “only” thing that matters is £ cost per kW. Aesthetics and other considerations come into it too, such as robustness, longevity, reliability, fitting cost and time, ease of maintenance and repair, etc. Anyway, they said each kW costs an additional £1,195. Hopefully that helps.

I know this is an old thread, but I spoke to Paul Stevenson, who seems to be the UK and Ireland rep, and he said it is manufactured in Birmingham and they can deliver anywhere (at a price) or you can organise your own delivery or get a third party to collect and deliver it for you.

Nulok say that their panels (solar pv tiles) are 22.8% efficient, which seems to compare well with standard panels. Each tile comes prewired and they just plug together. They can have optimisers and or mini inverters fitted so are well suited to roofs that suffer moving shading. Here are the latest tech specs: https://nulokroofing.com/uk/wp-content/uploads/2022/12/Data-sheet-SolartrixE-1200-400-10volt-N.pdf