... this started happening today.
The scaffolding team arrived last Tuesday. They had rung on Monday to say that they couldn't make it in on that day, but would come on the Tuesday. This was something of a surprise, since I was pretty sure they weren't due to be there till Wednesday. However, since they were happy to install it without our actual presence, it didn't matter that much.
They rang again on Tuesday morning, to confirm they would be there at 11ish. We were both out at work by then. By the time we got home, the scaffolding was all in place.
Despite potential disruption due to weather, the roof installation team arrived at 9am this morning. The electrician rang at 9.30, to say he'd be there a little later - which he duly was. The installation has proceeded smoothly so far, the only slight complication being that the panels on one section of the roof don't fit in a tidy array, so three will be lined up "portrait" and two running along the bottom of the roof section "landscape". The panels aren't up yet, but the metal framework that will support them is.
As far as cabling is concerned, the inverter will be in the loft, mounted on a board next to the chimney breast. A cable runs from there close to the boiler and then down to the consumer unit area, using cable ties to fix it to the pipe that takes gas up to the boiler. A meter has been mounted, along with a meaty isolation switch - there will be photos soon!
The installation team have been pleased with how smoothly it has gone, and hope to have finished early - they are implying lunchtime, rather than school pickup time.