I don't understand and general dilemmas

This time of year with lack of daylight and the angle of the sun - I wouldn't expect too much. From what you've posted they look like they're working find but I'd wait till March / April and a good sunny day to see for sure. What exactly do you want to know? They will produce power for your house and then export the rest. Unless you have an Eddi or similar pulling excess to hot water tank? What about a battery, do you have one?

At this time of year PV panels won't do a huge amount most days - but it does depend on primarily weather conditions - but also if the panels are being shaded at all. If one panel of the whole lot is shaded it will drag the whole array down massively. Post a picture of the array - we might be able to advise if you need to add an optimizer to get better results. But come the spring you will start to see the value of them as your electric bill should start dropping a lot. For instance, pre-PV - mine was ~€200 per two monthly cycle in the winter. It's now down to ~€150. In summer, bills have gone from ~€150 to €79 / €67 / €74 (over the 6 months of spring / summer billing).

Also, as I have an Eddi heating my hot water I didn't use any oil whatsoever from mid March to mid -October unlike previous year where I probably used 100 litres of oil for showers etc. over the summer months.

I got my latest bill and reckon I generated 220kw during the 2 months and saved 119 kW on my bill compared to last year with just 3.24kw of panels.

Leave it for a few days at least until you get a sunny day and you'll be able.to see the max generation in the app. Surprised your sparks didn't tell you.

With two panels, at best you're talking like 800w, probably less. This will cover the base load from your house with a small bit to spare so will not make a significant saving really.

Would you test a flash light at the beach in July? Don't bother with Solar in December...