Only if placed above high albedo surfaces. And when placed above existing grass several times less than any other option except wind/tidal. A solar panel above

Only if placed above high albedo surfaces. And when placed above existing grass several times less than any other option except wind/tidal. A solar panel above asphalt or concrete provides a net increase in albedo. And there is more than enough to provide the required solar share of energy to provide all our needs (with the other half provided by wind).