Today’s weather has not been great, with a maximum temperature of about 11 degrees. There has also been a very brief period of snowy sludgy noisy rain that made a huge racket on the conservatory roof.

There has, however, been lots and lots of sun. And bright sunlight, whatever the air temperature, means good performance for the solar panel.

Today’s new high – I believe – takes the solar collector up to 47 degrees, edging closer and closer to the 70/80 degrees I would need to get a full tank of hot water at the right temperature.

Here’s a screenshot of the controller: