In response to:
I am looking at the results of my first modeling run and have some questions about the results. (I looked back at the forum discussion and I
still wasn't clear on this.)
The site has a few MW of existing generation, so there are periods in
the site's baseline hourly load data where the existing site is putting
power onto the grid.
Now the site wants to add PV and Batteries. In the modeling results, it
is clear that the battery is storing the new PV system's output, but is
SAM also able to know that the site's negative production hours are
times that it could charge the battery and is it able to include those
saving in the results?
I think a better approach to modeling the existing system than setting the load to negative values would be to include the existing system in the system design that you are modeling. That way, the system will represent the retrofitted project. You could also create a case for the existing system without the additional equipment to compare the results before and after the retrofit.
Best regards,
Paul.