[rames14]

I can tell you all of my panels are in Series. That prevents shade on one impacting the others. In January, our 1200 watts were producing about 4.2 kWh per day. We were seeing a charge from about 8-4 pm. So, about 525 watts per hour. As the sun gets more overhead, I would expect to see what you are seeing.

Here is a good Battleborn article. They figure 350 watts/day from a 100 watt panel.
https://battlebornbatteries.com/rv-solar-panels-guide/