Sure? I interpret it as meaning that every square meter gets energy surplus of 0.5 to 1 watt - as in, 0.5 to 1 watt hours per hour, or 0.5 to 1 watt seconds per

Sure? I interpret it as meaning that every square meter gets energy surplus of 0.5 to 1 watt - as in, 0.5 to 1 watt hours per hour, or 0.5 to 1 watt seconds per second...