Can someone explain off the grid power please

@SparklyBI know I'm almost a year late, but this is what I think. I think the power consumption/production rating is per hour. So, an item that has a consumption of 2 would need 24 per day. An item that produces 2 would produce 48 per day. This would create a surplus of 24 per day. So, you would need enough solar panels to cover each appliance, totaling in lights and any other items that consume power. (I always minimize the size of the solar panels to the smallest they can get to maximize roof space. I do the same with the dew collector too.) I hope that helps!