| Solar energy could become a competitive energy source within 20 years, according to a new publication from the International Energy Agency (IEA). The publication, Solar Energy Perspectives, looks at how best to use, combine and promote the major types of solar power, solar heating/cooling, photovoltaic and solar thermal electricity.
Some solar technologies are getting close to competitiveness in some circumstances for some uses, but only a limited number of countries have been supporting the effort...............................................Full Article: Source
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