It turned out all right in the end, but it was a long journey. The initial application was made online at the beginning of July 2022 and the installation was finally completed on 28 October. It is probably much quicker if you have a parking area immediately adjacent to the house. Our garage is 35 meters away, at the bottom of the garden. This required countless photographs before an engineer was commissioned to come and explore the possibilities, and another engineer's visit because the first one left the company before the installation was attempted. In all, it has cost over £2000. It seems to me that the process would be much simpler if the job was classified as either "standard" (i.e. adjacent to the house) or "non-standard", which immediately prompted and engineer's visit.