Direct sunlight is needed, or preferred at least to get the most power generated.
Direct sunlight in winter is less useful as it is less intense due to the angle in incidence. Same as why it's colder in winter than summer. Earth tilting away from the sun rather than towards the sun. Same light beams spread further. You obviously also get less hours of daylight in winter, but that's got nothing to do with the intensity of the light.
Still generate some whilst cloudy, just nothing like a clear sunny day.
Panel seems to be doing a reasonable job. Done some tests with lights on for 8-10 hours and fairly happy.
Started the insulation process over the last couple of evenings. Kinda just winging it, hopefully it won't be too rubbish.
Good question. I think possibly yeah, but it could be difficult.
Sitting in the driver's seat I can collapse the end passenger seat which gives access to the back. Could then fold the other seats, unfold the bed extension then get inflating. There's a van ignition 12v socket at the back of the van to use
Storage and to bring the bed height up to the height of the front seats when folded, that then allows me to fold another piece over the seats to extend the bed length. I wouldn't fit otherwise (6ft 2/188cm).
Eventually I will turn the storage in to some drawer units to put out at the back. When the doors are open