As some of you are aware, the solar calculation for winter season (in Northern hemisphere) was significantly underestimating.
We have revamped our in-house algorithm, and it now starts from base PV out max, calculates the optimal bell curve between sunrise and sunset, and then applies correction factors for things like sun angle, latitude, panel orientation, roof angle, cloud cover etc.
We know some of you are currently counteracting this underestimation by increasing your PV capacity.
Please change this back as soon as you can, as this change will be rolled out and effective this afternoon (UK time), 16th October 2023.