Capacity factor is still 12% in ireland. 7% on a mostly clear week in mid winter. Your solar array has to be about 30x as big as the floor area to cover net dai

Capacity factor is still 12% in ireland. 7% on a mostly clear week in mid winter. Your solar array has to be about 30x as big as the floor area to cover net daily energy on most days. Maybe down to 20x with bifacial modules and relying on grid or backup for a few hours a day during bad days in winter. Eyeballing some photos in the US, including the parking and setbacks you might be able to cover 10% of the power in winter or 15% year average In some areas you can probably put up a 3MW wind turbine or three. That would substantially lower the cost and size of storage. Max density for an entire area is only 10W/m^2 though so it's only another 4% assuming the available land looks like some random amazon datacenter I glanced at. Still, 15% ish net annual is a dent for doing the extremely energy intensive thing without expanding the land use (assuming it's a good wind site). I wonder if in some future where 70% efficient five junction panels are available whether it would make it easier to cool. You'd effectively be taking the sun heat and putting it inside so the outside would be cooler.