Issue ratio System nameplate size / annual production

Hi everyone,

I don't understand something on one specfic case. I use SAM to estimate solar potential of buildings and today I cope with something really strange.

I said that I wanted 9.9 kWc of solar panels, with a tilt of 15° and an azimuth of 225°. After the simultation, I got an annual production of 10.9 MWh, but when I exported the "Electricity to grid" values, I got a total production of 5.1 MWh which is really strange...

I don't know where it may come from, if someone has an idea ?

Regards,

Hello,

"Electricity to grid" is the power delivered by the system to the grid. If you modeled a system with a building electric load, some of the power from the system goes to the load. Only power generated by the system in excess of the load in any given time step is delivered to the grid.

Best regards,
Paul.