Alexandre's profile

C'est une excellente idée! Une façon de la concrétiser et de ressouder les liens entre les générations serait de faire des sortes de workshop dans les maisons de retraite.

Pour le deuxième point, encourager la rêverie et l'inactivité dans une société où personne n'a (ne prend) de temps est une excellente chose, des campagnes choc dans le métro pourraient être excellentes par exemple!

May 21, 2014
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Black car in summer time = human cooking machine !

Yes of course! But when it is too hot, this energy is often used for cooling, so this is more or less the same.

May 21, 2014
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Change your heating ways

Effectively, we could save a lot of energy reducing the rooms temperature, moreover it is really healthy!

As you said, the companies that provide heating will never encourage such a system! So the change could only come from the inhabitants, or by new norms or encouraging measures to do so. But anyway, the energy price is too weak to encourage a change of habits, therefore, an other solution would be to rise the energy price (by a simple tax witch moreover would help the state depths) to encourage people heating reasonably.

May 21, 2014
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Assemble computer to form a supercalculator!

Nice! I am glad to hear about that!

May 21, 2014
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Laisse la couler !

No problem! You are right by the way, grey water would need at least basic filters to be used, witch would be complicated to install, so rain water are a very nice candidate for the toilets use.

May 20, 2014
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Sustainable street food

Great idea indeed! Is there any way to use vegetal plates in Europe to?

May 20, 2014
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Black car in summer time = human cooking machine !

Even if you are not in the desert! Never experienced, the ride home in car after an afternoon at the beach? Well it feels like beeing in an oven..

May 20, 2014
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Laisse la couler !

It is the same idea as this post : https://fuseboxepfl.crowdicity.com/post/52323

Sorry :p

May 20, 2014
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Store energy.. in your old cellphone!

Yields : A typical lithium battery (the more used one) has a 90% yield, and we have to add a power transformer that has more than 95% yield so that the output tension fits with the electric network, so that is at least a 85% yield, witch is quite good.

Potential energy storage : A smartphone battery has a storage capacity around 2-5W/h, so for one square meter of photovoltaic panel, we would need approximately 100 batteries to store an usual day energy. But we have to consider that only the surplus producted energy needs to be stored, so we would probably need way less batteries!

Other batteries : As you said, there is way more batteries to use. Also the tablets, personal computers, cars, and all the house devices have batteries! For instance a computer battery can store some 50-100 W/h, 20 times the smartphone one, witch means max 5 computer batteries per solar panel!