PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • US wind power grew by 50% in 2008 as China???s doubled Source: Ars Technica, Thu February 05, 2009 USA & China - Many renewable energy technologies, most notably photovoltaic, are struggling to reach what is called grid parity, where the cost of the power they generate matches that of fossil fuel generation.
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