<http://schema.org/about>
"Earlier this week I posted about how the solar industry can continue ferocious cost reductions, and there are plenty of advocates predicting a solar energy tipping point in the not too distant future. But we are already seeing signs that falling prices"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/solar-technology/50mw-solar-farm-plan-grows-to-400mw-due-to-low-costs.html>