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passive solar

Solar Decathlon 2015 Update

Meet some more of the teams from the Solar Decathlon 2015. It will take place Oct. 8–18, 2015, at the Orange County Great Park in Irvine, California.

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Solar Active Houses Heat Themselves

Solar Active Houses are ideal for achieving the European Union’s Energy Performance of Buildings Directive, which stipulates that all buildings built from 2021 onwards have to be nearly zero-energy buildings

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A Homemade Solar Air Heater that Can Produce Free 140 degree F Hot Air

The cold air enters through vents at the bottom of collector and is heated by the sun as it is pulled up through the seven columns of cans. The fan is included to also draw the heated air from the airspace surrounding the cans. This unit is made of used (and cleaned) soup or vegetable cans, one 9 foot piece of wood makes the frame, cardboard for insulation (store-bought insulation board can be used as well), a 20″ by 32″ inch piece of plexi-glass and a computer cooling fan.

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The 125 Year Old Eiffel Tower Goes Solar

The project aims to reduce the tower’s carbon footprint ( and air conditioning bills in the summer ) with passive solar design by changing the position of glass windows as well as introducing solar collector panels to heat 50 % of the hot water it uses. They have also installed a rainwater collection system to supply the lavatories and replaced the older lighting systems with LED.

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