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Solar modules now selling for less than €0.06/W in Europe
(www.pv-magazine.com)
This is a most excellent place for technology news and articles.
That's the worst way to do solar, though. It doesn't get to take advantage of economies of scale in installation and inverters. Some levelized cost of energy studies put it just as expensive as nuclear.
Solar gets its cheapness when it's in fields or on top of large, flat commercial/industrial buildings.
Do commercial/industrial buildings not require power then?
There's often enough space on those buildings for excess power. Not all those buildings have particularly intensive energy needs. Many are just warehouses.