What is the total square footage of Wal Mart stores in the US?

....What is their potential for solar power generation?

Savetheworld2013-09-18T02:38:21Z

They vary from 50,000 square feet to 225,000 square feet. The potential for solar generation doesn't require the land to be in urban areas where it tends to be expensive. It can be in cheaper rural areas where the cost of land is relatively much cheaper.