- Dec 8, 2009
I'm going to get flamed again soon for spamming this thread but it's nice to compare now that I have a full year of data even though the system was not optimised fully.Plus you can now manage base load as well as charge batteries on overcast days.
21 x 305w panels vs 34 x 305w panels. 6.405kw vs 10.37kw. Same day with almost similar conditions. Can also now start to monitor any panel degradation as they age. Ideally I should have produced 34.32kwh today if I look at what I got from the 21 panels a year ago. The extra panels do hoever have a small section that gets shaded an hour in the morning so I'm quite satisfied with the numbers.