First of all, install the solar panel facing perpendicular to the light path is not easy when living in highrise buildings. My panel is facing South, about 60 degree to ground. In Hanoi, Vietnam, an ideal tiltation is 23 degrees to the ground, facing South and possibly Sun tracking during the day. The data and analysis given on GitHub AS IS.
Here are some of insights from the system and sensors installed.
Read more about other applications of PV by NREL.