Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. Photovoltaics convert light into electric current using the photoelectric effect. Commercial concentrated solar power plants were first developed in the 1980s.
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Analyst: Renewable energy will be 'effectively free' by 2030
Analysts at Swiss investment bank UBS believe that by 2030, we could all be living without much of a carbon footprint -- ...
