Photos, both taken Friday 13th Feb 2009. 9 am.
Peterborough had more snow fall last night. And temperatures dropped to -1 perhaps -2.
On the driveway, a car has a snow blanket, which has frozen, then started to thaw.
(The cotton blanket at the bottom of the windscreen just protects the wipers and spray jets overnight)
The same morning, 9am the solar panel is warming up.
Another dry (cold) sunny day in prospect. 
By this time of year, the sun is now high enough by 9am to ensure the shadow from the house next door does not cover the panel.
If you are contemplating solar panels on your house, even if the neighbouring houses are close, (approx. 8 metres apart in this case) the angle of the sun is enough to reach a well positioned panel.
In this case the panel is not vertically attached to the wall, but it's approx. 30 degrees from the vertical on a pair of aluminium stands. I understand these would normally be used if siting the panel on a tile roof, but here they serve well to maximise the exposure to the sun at this time of year.
