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Glass Facade, fresnel light concentration - LIGHTFARM: aims to utilize buildings’ facade for concentrating light rays and use this harvested light for lighting inside buildings, heating, and also power generation by (HCPV)photovoltaic (This kind of PV have efficiency of 40% to 50% and they are suitable for concentrated lights of 500 to 1000 sun intensity. in this case instead of using conventional photovoltaic of 12 to 19% efficiency we would concentrate light by buildings’ façade and utilize a few Sq Cm of (HCPV)to generate electricity
Tepee-shaped building - LIGHTFARM: aims to utilize buildings’ facade for concentrating light rays and use this harvested light for lighting inside buildings, heating, and also power generation by (HCPV)photovoltaic (This kind of PV have efficiency of 40% to 50% and they are suitable for concentrated lights of 500 to 1000 sun intensity. in this case instead of using conventional photovoltaic of 12 to 19% efficiency we would concentrate light by buildings’ façade and utilize a few Sq Cm of (HCPV)to generate electricity
parabolic modules - LIGHTFARM: aims to utilize buildings’ facade for concentrating light rays and use this harvested light for lighting inside buildings, heating, and also power generation by (HCPV)photovoltaic (This kind of PV have efficiency of 40% to 50% and they are suitable for concentrated lights of 500 to 1000 sun intensity. in this case instead of using conventional photovoltaic of 12 to 19% efficiency we would concentrate light by buildings’ façade and utilize a few Sq Cm of (HCPV)to generate electricity
Usage of harvested light - LIGHTFARM: aims to utilize buildings’ facade for concentrating light rays and use this harvested light for lighting inside buildings, heating, and also power generation by (HCPV)photovoltaic (This kind of PV have efficiency of 40% to 50% and they are suitable for concentrated lights of 500 to 1000 sun intensity. in this case instead of using conventional photovoltaic of 12 to 19% efficiency we would concentrate light by buildings’ façade and utilize a few Sq Cm of (HCPV)to generate electricity
Fresnel Lens & Parabolic comparing- Hcpv & Light collectors - This picture is a schematic view to compare two possibilities of Fresnel Lens & Parabolic - Also Hcpv & Light collectors.

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Facade Light Harvesting System 2010
Mohsen Saleh
Design engineer Milan, Italy