Hello,
I am trying to simulate a PV detailed residential, on the last version of SAM,
I started a new file and simulated with default load date, I checked value of electricity savings from the cash flow table, it is about $848 for the first year, choosing to Normalize supplied load profile to monthly utility bill data from Electric load section, shows a decrease in the load input, here I am assuming I am consuming less energy so im selling more to the grid, I am expecting more profit on value of electricity savings on the cash flow table, but it is showing the opposite, my profit decreased to $658 on the first year. On the other hand, Editing values of Monthly energy usage to lower values, causes a decrease in profit and vise versa.
Moreover, Using "Calculate Load Data" from the electric load option and editing one of the values of Monthly load data, for example choosing February to be 150.00 Kwh and simulating shows an error saying "The building electric load profile estimator calculated negative loads for 8 hours. Loads for these hours were set to zero; however, this may indicate a problem with your inputs." and again less profit with lower load on the cash flow table.
I tried another option, which is no load option from Electric Load section, the profit decreased from $848 on the first case to $243.
I would appreciate if someone can explain why this problem occurs and what can I do to solve it
Thank you very much.
Kind Regards,
Ahmad Harb.