I'm not arguing for a giant solar array in the Sahara, just using marginal farmland that surrounds many cities to put solar panels instead of scattered about on

I'm not arguing for a giant solar array in the Sahara, just using marginal farmland that surrounds many cities to put solar panels instead of scattered about on roofs in the city. And with most solar installations it just dumps electricity back into the grid so I'd think losses would be similar.