code: def pvwatts_ac(self, pdc):
          
          kwargs = _build_kwargs(['eta_inv_nom', 'eta_inv_ref'],
                                 self.inverter_parameters)
  
          return pvwatts_ac(pdc, self.module_parameters['pdc0'], **kwargs)
docs: Calculates AC power according to the PVWatts model using
          :py:func:`pvwatts_ac`, `self.module_parameters['pdc0']`, and
          `eta_inv_nom=self.inverter_parameters['eta_inv_nom']`.
  
          See :py:func:`pvwatts_ac` for details.