Organic solar movie, this innovation from Nantes Asca that could revolutionize decarbonization

“If we print as many solar movies as warmth switch ribbons, yearly we’ll produce greater than the full vitality of the French nuclear fleet. We presently manufacture 13,000 kilometers of warmth switch tape per day or two billion m² per yr. Even if we take only one billion, at present effectivity, we’ll produce 60 gigawatts (GW) {of electrical} energy. It’s your entire French nuclear fleet – when it really works! »Hubert de Boisredon, CEO of Armor Group, world chief in thermal switch ribbons (used to make barcode labels) and founding father of the Asca subsidiary in 2012 for the manufacturing of natural solar movies – “OPVs” (for natural photovoltaics) illustrates the time period renewable vitality.

Since then, the Nantes Group has invested greater than 100 million euros, in La Chevrolet close to Nantes, to develop a know-how based mostly on photo-active polymers, with out solvents, with out uncommon supplies, and whose finish of life is taken into account from the product design. stage “The answer is earlier than our eyes…”, Hubert de Boisredon believes.

A complementary answer to photovoltaic panels, whose yield continues to be thrice increased. They are literally about 6% to 7%, in comparison with 18% to twenty% for silicon panels, most of that are produced in China. On the opposite hand, far more delicate to scattered mild, natural solar movies produce energy from dawn to sundown no matter temperature, orientation and cloud cowl. “At equal energy, the movie produces 30% extra vitality than a solar panel”, argues Hubert de Boisredon. Its flexibility and maneuverability, like a second pores and skin, make it an answer the place photovoltaic panels can’t be put in on account of architectural or environmental constraints. And what’s extra, it saves on Co2, because it avoids, amongst different issues, using sea transport, which is critical to import Chinese photovoltaic panels.

Aska goals to triple manufacturing by 2023

“It’s not a matter of pondering by way of efficiency however by way of carbon footprint, which is all the identical, the last word concern. The President of the Republic says he desires to advertise French and European sovereignty. However, in photovoltaics, if we’ve to do with out Chinese manufacturing, the results for the French will likely be worse than for Russian gasoline! », Hubert de Boisredon additionally laments that public cash invested in vitality transfers helps Chinese factories function, whereas a part of the vitality demand could be provided by natural solar movies. and, thus, strengthen nationwide sovereignty. Why has France been sluggish to take curiosity in this nonetheless promising know-how? “Out of ignorance. And then, a perception unfold in sure circles who thought we had already misplaced to different solar options.”added Armour’s CEO.

And but, outdoors of France, movies from Nantes are well-liked. And for good motive: this materials has already coated the media facade of the Novartis Pavilion in Basel, Switzerland, which has grow to be an emblem of the town, but additionally the railings of Germany’s energy-producing buildings or the shadow sails of the headquarters. The solar roof of the Netherlands Pavilion on the 2020 Universal Exhibition in Dubai, the African Union of Ethiopia, the LED facade of the Seoul Architecture and Urban Planning Biennale, and even the clothes of linked objects. … For now, the vitality is totally reinjected into the constructing to extend self-use.

“The recognition in Basel has created an actual breath of contemporary air that will permit us to triple manufacturing in 2023”, estimates Moira Aces, Oscar’s vice-president in command of technique and advertising and marketing, who has since obtained a thousand requests. .

Pending advert hoc French laws

On the opposite hand, in France, we’re dragging our ft. For now, within the absence of laws advert hocThe producer of the versatile movie should acquire a technical opinion and certification from the CSTB (Scientific and Technical Building Center) for every of his achievements, relying on the kind of module, its dimension, form, and many others.

“Without this certificates, a constructing isn’t insurable. And so nobody takes dangers,” laments Moira Aces.

As a consequence, solely experimental situations allowed Asca to current its innovation in France. Hence the fury of the CEO of Armour, whose know-how was supported by CEA, Chambéry’s National Institute of Solar Energy and France Reliance researchers with as much as 800,000 euros. ” The German (18 million euros) and Brazilian sectors, that are our primary rivals, don’t have anything to do with their assist.he mentioned.

[Hubert de Boisredon, Pdg du groupe Armor et fondateur d’Asca, producteur de films photovoltaïques organiques. Crédit : F. Thual.]

“We are confronted with an absurdity which, by way of ignorance and lack of expertise, deprives farmers of land, the place complementary options seem the place photovoltaic panels can’t be put in”, factors out Hubert de Boisredon.

But consciousness is rising. On November 4, the Senate handed the primary studying of the invoice on the acceleration of renewable vitality manufacturing. With two amendments, one for the consideration of the carbon footprint in public orders, the opposite for the opportunity of solarizing the facades of buildings whose footprint exceeds 250 m².

Even if Oscar leaders remorse that weight restrictions on balustrades and railings weren’t taken into consideration, the adoption of the textual content by a big majority (343 voters, 325 categorical, 320 for, 5 in opposition to and 18 abstentions), all political colours mixed, Create a glimmer of hope.

“They realized that, behind the scenes, it’s employment in France that we’re defending”Reassuring the CEO of Armour, who desires to “drive the purpose residence”, multiplying the conferences with the deputies and the related ministers by convincing them of the potential of this French know-how and the necessity to calm down the constraints of the invoice by the National Assembly on December 6.

“It isn’t a political concern, it’s a matter of nationwide curiosity. We are able to go, and we’re reliable.He mentioned ETI Armor has moved from fourth place to the title of world chief within the thermal switch ribbon in twenty years by way of innovation, funding and social dialogue, with enterprise figures of 403 million euros (consolidated) in 2021. and a pair of,450 workers worldwide, together with 780 in France.

A chameleon know-how

Technically, it took Asca ten years to good a “recipe” based mostly on polymers, impressed by the applied sciences deployed for thermal tapes, and to industrialize its coating course of for skinny layers of skinny movies.

“The alternative of polymers is a basic ingredient within the manufacturing of natural photovoltaic modules. They decide the efficiency of photovoltaic modules », explains Moïra Asses, whose analysis groups succeeded in doubling the yield within the laboratory to achieve 14% this time. A aim that Asca is now attempting to industrialize at its Chevrolière unit, which produces 1 million sq. meters per yr.

The course of depends on 5 layers printed on OPV movie, on a roll, enclosed in two protecting layers to insulate and shield the polymers (energetic layer) from oxygen, moisture and even UV rays.

A course of that has led to almost 100 patent filings.

To increase its functions, in 2019 Armor acquired German startup Opvius (now Armor Solar Power Films), which has quite a lot of morphologies (diamonds, circles, leaves, and many others.) for buildings, balustrades, linked objects, charging tarpaulins, solar bushes, and many others. To adapt to, however to supply in numerous sizes and colours.

Compatible with many supplies (wooden, steel, glass, material, and many others.), this solar answer, which claims to be low carbon and classy, can present energy in quite a lot of functions for mobility, linked cities, and many others.

“With sustainable vitality, useful resource consumption is thrice much less essential for the planet than with photovoltaic panels. It is a method of prolonging the capital of the earth’s sources, the interval of use of which, ending on July 28 this yr, is getting shorter yearly”, Hubert de Boisredon argues, far from missing sources.