def METHOD_NAME(self, *args, **kwargs):
    # Cache the available_power property on the instance
    kva = abs(self.voltage) * self.amperage * (self.max_utilization / 100)
    if self.phase == PowerFeedPhaseChoices.PHASE_3PHASE:
        self.available_power = round(kva * 1.732)
    else:
        self.available_power = round(kva)
    super().METHOD_NAME(*args, **kwargs)