Amorphous silicon

This cell does not have a crystalline structure but is stretched into thin layers which can be deposited on a backing material which can be rigid or flexible. It is the first of a new breed of PVs based on thin film technology. By building up layers tuned to different parts of the solar spectrum known as a double or triple junction cell, a peak efficiency of 6 per cent is achievable. Unlike the crystalline cells it is capable of bulk production and is therefore potentially much cheaper.

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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