Running SAM .lk script from Python

Hi Joel,

The general definition is:

DC - AC Ratio = Array DC Nameplate Capacity (kWdc) / Inverter AC Nameplate Capacity (kWac)

To calculate the ratio, assuming you are using the Sandia Inverter model and CEC Module Model with Database Paramters model, you could write Python code based on this pseudocode:

pdc = get( cec_imp_ref ) * get( cec_v_mp_ref)
pac = get( inv_snl_paco )
dc_ac_ratio = pdc / pac

Where get() is whatever function you are using to read the values of SSC input variables. Those values should all be in kW,.

Thanks,
Paul.

Hi Joel,

The "Inverter CEC Database" model is the same as the Sandia Inverter model, whose input variable names mostly start with "inv_snl_". Sorry these model names are so confusing.

Thanks,
Paul.

Hi Joel,

Use 'module_model' to set the model option. There is a description here:

nrel-pysam.readthedocs.io/en/master/modules/Pvsamv1.html#module-group

Best regards,
Paul.