This is the Solar monitor showing a very good (not Typical) day in Early April. The Graph shows the Output in KW on the Vertical Axis and the Time on the horizontal. The nice smooth curve shows that not one cloud blocked the sun all day.
The curve is steeper at the front because our panels point slightly Easterly.
This is the same type of Day in June. As you can see the graph is identical in shape and even the maximum output is similar*. The only difference being the number of hours that power was output for i.e from 6am to 7pm in April and fro 4am to 9pm in June. *Note:- Under constant Sunlight the Array cannot seem to hit full capacity. I believe this is because the heat generated reduces the efficiency of the cells. The array will hit full capacity if the sun comes out from behind a cloud for a short time before slowly reducing again back down the around 90% (depending on the time of year.
This is a more typical day. As you can see the graph spikes as the sun comes out from behind a cloud and the array hits full capacity for a while.
This a close up I took of the Solar panels when they where first installed last June, We had to wait for a month before they could be commissioned because the inverter we wanted was in such short supply.
This was taken in November, the panels will produce very little power if any part of a panel is covered. If any panel is fully covered in a string that string will produce no power at all. We had a 0 KwH for some days in November. Fortunately the panels are quite slidey so the snow slid off quite quick once it started to melt.
This is Max's Solar array in Oldham. Max went for sophisticated panels that worked better in lower level light conditions.
This is Mike's Solar array in Leeds. Mikes system is currently vastly out performing as compared to the installers estimates.
The Energy meter can not discriminate between electricity going into the house or back out onto the grid so the history display now has no value. There's something quite satisfying about having most of my office equipment, fridges, freezers, etc, the oven on or the kettle and still only using 225 Watts from the Grid.