This is the sort of graph I’ve been waiting for – now that there is more sun, at last:
(the steep increases and decreases are probably due to shadows from the other roofs)
All values were obtained from the SB5000TL inverter as 5-minute readouts over Bluetooth:
- total delivered power on AC mains – 29 kWh for the entire day
- total incoming power on the east-facing roof (12 panels)
- total incoming power on the west-facing roof (10 panels)
The east-facing panels are actually slight to the north, and the west-facing ones slightly to the south. Which might explain the similar peak production levels despite the different number of panels, i.e. different “insolation” angles.
The peak values are not the highest I’ve seen so far. A cold day with light clouds recently pushed the maximum to over 4700 watts. But that was a rare event. These values are fine with me – I find such levels of solar PV output in a location well up north on this planet (52°N, to be precise) pretty amazing, in fact.