camelot-forum.co.uk

	System 1	System 2	Total
kWp	4.08	1.14	5.22
Generation (kwh)	36.5	7.7	44.2
kWh/kWp	9.0	6.8	8.5
Exported (kWh)			5.9
Exported (%)			13.3

What can I say? December...

Combined 40kWh generation.

My original system (on which I have FIT) was nearly 300kWh down on last year's 3704kWh at 3427kWh (which was the best since it was installed in 2010).

My three systems combined were about 250kWh down on last year at 6955kWh.

Worst December, other than 2015, since my system was installed in 2012

12.01 kWh/kWp

My results for December were:

3.87 kWp, slope 50 degrees, due south, lat 57.15

Total generation: 63.9kWh

Daily average: 2kWh

Generation per kWp: 16.5kWh

Daily average per kWp: 0.5kWh

PVGIS: 62.1kWh

%PVGIS: 103%

Joeboy wrote: ↑Sat Jan 01, 2022 11:30 am Combined 40kWh generation.

Batteries do the heavy lifting this time of year rather than solar. I do though need a little solar to get me all the way through.

Yesterday was a good example: 3.6kWh of solar so used 1.43kWh of peak electric and 16.6kWh of off-peak.

kWh/kWpk 12.4

Worst generation in 10 years!

December 2021 - 40

Best year was 2014 - 98

Expected generation - 54

Cap 8.85 kWp, pitch 23, SSE, lat 51.97.

Total gen 160 kWh, 69% of pvgis.

Gen/kWp = 18.1 kWh's

Worst month since install, April 2018.