Solar Energy
Scientists estimate that the radiation
falling on the earth is only one-2.2billion of the energy that the sun emits. Yet just one
hour of the energy that the earth receives is equal to total amount of energy consumed by
humans in one year. Solar radiation can be utilized in various forms. Example of direct
utilization on a comparatively in various scale include photovoltaic power generation and
solar heat power generation.Photovoltaic
power generation is a new electric power generation method utilizing solar cells which
produce DC electric power when they receive light. In order to promote the practical
application of such photovoltaic power generation systems, the development of solar cell
manufacturing techniques and comprehensive system techniques are being addressed aiming at
further higher efficiency and lower cost.
The configuration of a photovoltaic
system is shown as in the picture.
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