Maybe your house (or wallet) isn't suited for a full residential installation, especially including battery storage. Maybe you would like grid power where there is no grid. SUNRNR owners are a diverse crowd and have diverse applications:
It is important to have a backup power supply to run lights, a pump, laptop, TV, radio, freezer/refrigerator, microwave, fan, furnace, phone charger, power tools or other vital electrical devices during power outages, even at night or during the storm.
Have you ever needed a generator to run the pump to get gasoline to run your gas generator?
And a SUNRNR may be used as supplemental electricity, reducing your utility bill, while awaiting its role as emergency backup power.