S
screwdriver
Have you run the aurora datalogging software to check the inverter logs? You do need to remember it is the worst week of the year for solar and a lot of customers don't seem to grasp the relationship between light and power output.....! E/W systems do perform a lot worse in the winter months than you would expect, we have been looking at a few systems this week down on the south coast with a power one inverter and the EW 3.8kw evenly split produces approx 3units on a clear day whilst a 3.8kw south system has done approx 7 units a day, both with poly crystalline panels.
