SAM - Detailed PV - Battery Inquiry

Hello Paul,
I hope you are doing well.

May I inquire how to make the solar system feed the battery first and then feed the load if any extra electricity is generated? Please let me know. I have tried all the dispatch algorithms, and I believe that the closest one is the manual dispatch, but still, it doesn’t feed the battery 100% first. The only way I figured to feed the battery 100% is through the grid, although I believe that the system can feed it completely without using electricity from the grid.In the attached picture, the blue represents the battery, and the red represents the system. I have designed the battery to shave the peak at 17 and 18 but it seems that it didn’t get fully charged from the system.
Please let me know what I should do? Thank you.

Hello Paul, Thank you for your reply. I think it's very important to have this option due to the fact that in Canada, we have financial incentives that would be utilized from such an approach. 
I have also tried to model the detailed PV + battery option twice. The first is without charging the battery from the grid (NPV= 1.9million). The second is charging the battery from the grid (NPV= 1.3million). I made sure that the only variable was the battery charging source. The question is that I am confused why there is a huge difference in the NPV, although the electricity rate is the same. For example, using 300KW to charge the battery at the cost of 0.1$/kW and then discharging to the load should be equal to directly feeding the load. Even if there is some power loss, I don't think it would cause such a big difference in the net present value. Please let me know if that makes sense. Thank you!