action (str): The suggested action to take, one of 'import', 'export', 'auto', 'charge', 'discharge', or 'stopped'.

        **auto**: Let Powston’s default rules manage the battery.
            If no special situation applies, keep grid at zero and charge or discharge to meet household demand.

        **charge**: Charge battery using solar and allow grid import to meet excess household demand (allows DC charging).
        **discharge**: Discharge battery to meet household demand but don't export to the grid.

        **import**: Import from the grid to meet household demand and charge the battery at full power (energy is cheap).
        **export**: Export to the grid to meet household demand and discharge the battery at full power (energy is expensive).
        **stopped**: Stop charging or discharging the battery and let the grid meet household demand.
solar (str): The solar action to take, one of 'export' or 'curtail'.
    **export**: Allow solar to operate at peak capacity and export to the grid.
    **curtail**: Curtail solar generation to meet household demand, but don’t export to grid
        (if used with import it will turn off solar for when price is negative)