What if cooking, washing or heating costs you absolutely nothing and even earns you a little money at the end of the year? In Strasbourg, this dream has come true for the tenants of a so-called positive energy building.
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Running your washing machine, turning on the heating, listening to your favorite music, these everyday actions cost you dearly, 1,500 euros per year on average. But in Strasbourg, the 63 tenants of this building pay almost nothing. “Me, my annual consumption is 56 euros”, presents one of these tenants. “We, our energy bill for the year is 26 euros”, confides another. Some even have negative bills. “My bill, as we see here, it will be minus twelve euros”, shows us a young woman. woman. Concretely, that means twelve euros of rebate on rental charges. How is that possible?
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To understand, go to the roof. Vincent Morgenthaler, business manager for the Grand-Est region at Elithis, explains: “Here, we find around 400m² of surface area of photovoltaic panels, placed on the roof. But the most astonishing thing, it happens in the apartments. “The real innovation is these shutters made up of custom-made photovoltaic cells. Thus, the building functions as a mini-power station which covers 104% of the needs of the inhabitants.
But to achieve this, each tenant must limit their consumption. An application allows them to control everything remotely. Lights, heating, shutters, they receive constant alerts ”. “I left my house and forgot to open the shutters. The app notifies me that I can take advantage of natural light and heat. So, from a distance, I can open my shutters ”, shows us a tenant. Behind the design of this futuristic building, a young French company, Elithis, with 125 employees. Discover the entire report in the video above
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