I suggest that you break down your question into its components (as you have already listed) and ask each of them separately. That way, it would be more likely that you receive to-the-point answers. Then you can synthesize them to build up the answer to your compound question.

Hello! I can answer some questions.

Revit calculates the energetic potential that you can have with the installation of the panels in the building. For a correct analysis you must: 1 - Upload the EPW file of the city where the building is located, so that the program uses the historical climatic data; 2 - Define the inclination of the installation of the panels in relation to the roof / wall. You can modify the angles to define the best option; 3 - Draw all the elements present in the environment of the building (masses that provide shade for example).

Once you have the results you can compare with the thermal load of the building. Both demand and consumption must be calculated separately from the potential of the panels (in different flaps). The program does not calculate issues related to the risk and maintenance of the panels.

Regards!

The solar characteristics of modules are very important PV system sizing. It will help to determine the number of modules, battery size, controller size and inverter size, but the total daily energy demand should be considered first