I'm looking for information on how to modify the cost of O&M Production-Based Expense that is calculated for the Solar PV commercial model. I would like to know if there is a way to do it without having to export to excel?
I am not sure exactly what you mean. You can change the O&M costs on the System Costs input page. SAM calculates the "variable cost by generation" based on the system's output and the $/MWh value you enter.