I’ve recently had a 7.77kw system installed on 3 facings, East, North and West.
Linked up to a triple MPPT Inverter (Goodwe MS-6K).
I love looking at the graphs and I particularly like the idea of having the separate strings in extended data.
So in my main site, I’ve got V7-V9 set up to be String 1, 2 and 3 respectively.
I’ve also been logging efficiency as V10 (rudimentary Power out divided by Power in).
I realised at this point that I also wanted to capture string voltage and amps, so I created 3 new sites to capture this extra information.
I think it’s been going well so far, I love that I can see the insolation per string.
I have 2 questions at this point:
- would the insolation be accurate for each string, given that each string is set up with a separate site and facing?
I was also thinking about dedicating V12 to insolation estimated actuals from Solcast but wasn’t sure whether the insolation data is already from there or not.
- is it strange that the early morning and evening for inverter efficiency seems to be >100%?
This also happens during cloudy days.