Oh, and actually, reading about this more the 1000kWh/year figure I quoted above is more for hypermarkets, that aren't actually selling mainly food. For a true supermarket that sells mainly food it's more like 1500kWh/year, assuming an efficient centralized refrigerator system.
1MWh/year per what? Square meter? Color me skeptical.
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Ok. I find just over 500kwh/(y*m^2) which gives a 5:1 shortfall on area. But generation does not need to be colocated with consumption.
It does not. That's precisely why we have a power grid...
