On Fri, 3 Feb 2012 17:18:43 -0000, David Allan wrote:

On the subject of sunshine, the actual warming effect of the sun is
steadily climbing. Went back to my parked car today and the sun had
warmed up the interior quite markedly, despite the outside temperature
hovering around 0C.

Solar thermal panels have been producing heat for the last couple of
days, only really working for a couple of hours either side of noon
but looking at the flow and return temperatures and the flow rate I'd
say we've gained about 10kWHr of energy from them. That'll be a litre
of oil we won't burn...

Clouded up just before 1500 today but it had got quite warm. Little
to no wind.

Min: -7.7C (last night)
Max: 2.4C @ 13:40

Currently -2.1C falling very slowly 1C/hr ish. What wind there is is
vaguely W'ly.

--
Cheers Dave.
Nr Garrigill, Cumbria. 421m ASL.