Scratches on PV Panels

[Reddy]

Good news and!

Wow 100kW in December, mine have only managed to clock up 7kW in about the last 2 weeks (4kW system, SW facing, Manchester)! Does this seem right?

 

[and]

Well, I believe I'm heading for 100kW by the end of December to be more accurate, from 1 Dec to yesterday, it is exactly 86kW.

Sunday 18 Dec, the sun was out = 8.8kW, yesterday it was grey and rainy = 0.5kW.

At the end of the day, it just depends on if the sun is out or not.

As you can see from the above, on a grey winters day, the output is negligable.

I chart my output on:

REC3.92kW 3.920kW

I also look at others outputs in various parts of the UK with similar sized arrays (3.92kW) ... which will be more interesting and relevant come spring and summer when it will be useful to know that my array is generating what it should be by comparing it to others.