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A solar park on a mountain lake
Guillaume Fuchs
Friday, Sept. 6, 2019 · 11:46 a.m. · 14m 31s
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the other ladies and gentleman and young folks
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i am head of the light seemed department at home and energy
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and i also managed the floating solar phone project at the school lake
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so i'm going to talk about this project some some top few incentive to society on user project
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so i enjoy the mountains that we can as and when i can go to this
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uh uh to construction site during the week i move because how lucky i am sorry
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the contents of my presentation i'm gonna talk about a few examples of
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prod solar fun projects around well i'm going to present the advantages and challenges
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of this project at the tool lake summer taco
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framework around the project the constraints the challenges we face
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i'm also going to present the demonstration project work on rebuilding
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sorry i have a few for tires uh which all from this week
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i'm going to tell you about what's law just go projects
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this could potentially to and i will answer your questions afterwards
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first of all there are a couple of examples flirting so uh power phones
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uh in the u. k. and eject plan where
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uh uh several products have been a lead a um
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the project in u. k. produces six point three megawatts in japan is to put
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in like what services a polyethylene a support system on which solar panels are placed
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you can build any size and shape of so the farm
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uh uh i the all on irrigation reservoir also on or uh
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uh
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more to treatment reservoirs
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but he uh if you uh uh carry out these projects
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that helps you where there is a lot of snow fall
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but if the the this is more in the uh appropriate for
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countries with the temperate climate not really in alpine we're probably my climates
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so the aim was to with a project was to
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develop the cell phone that that couldn't withstand extreme conditions e.
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so it depends if this project was that we don't have
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an existing structure uh on a a downed reservoir we had the
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already in place was an electrical grid be transport infrastructure was good enough
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to allow trucks to come to the site o. e.
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the project also has a limited impact on the landscape because it's an artificial like that already exists
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uh the natural habitats all less likely to be affected in the mountains
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yeah in this like because the natural climatic cycle
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already has an impact on what species could leave them
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e. ooh oh it's also pieces more interested because of they don't touch it
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and also this is a logical project which means one that what's what's costs
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but challenges are that uh we have extreme climatic conditions the tool lake is
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at eighty hundred and ten needs is a and this leads to certain extreme conditions
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uh another town is innovation and if you innovate you're taking risks necessarily when
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sorry for the lake is located in a in a some on the valley uh on the way to italy
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it is also close to the uh colours we hydropower
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plants and the dailies hydro power plant which is smaller
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so this solo project at the tool lake uh ooh would involve
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the creation of a multi energy source project which would be unique
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so as i said we are confronted with him condition so what is the nature
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of these conditions it's obviously have the variation in high to the lake in the summer
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the lake is at its highest uh levels silent eighteen i didn't ten meters so it for the winter
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the lake will fall gradually and he's fifty centimetres of water depth over the winter
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you also have potentially up to fifty cents makes the snow on the panels
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before just removed i'll show you how the next argument afterwards use have ice
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the ice can be up to sixty centimetres thick in a much if
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your surgeon sandwiches attempt range between minus twenty five to plus thirty degrees
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and when speeds of up to twenty kilometres per hour from the valley
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you will and exactly six you think uh uh we
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build a platform to test out different solar panels different technologies
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with three three different uh into nations uh installations of thirty forty five
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and sixty degrees to see which of the most productive but also to study
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how best snow evacuation can be a karen out
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so if through the heating or solar panels all white
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full of parts of the toughest results were as follows so
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a a standard solar panel to use at lot you'd produces between
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eleven fifty one hundred fifteen twelve hundred a peak uh oh uh megawatts
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i like it best kilowatt hours critical hours at the else you there as
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well this is a higher figure of up to fourteen hundred actually what outs pick
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will was been looking at solar panels which hath cells on both sides
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when the advances of this is that you can have one it
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serves no on the panel on the top that's the rear face
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all of the panel the general g. funk to the reflection of sunlight on the snow
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and wants this panel heats up it's also it's going to cost them out the snow on top to melt and this
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removes a smart and these panels uh countries of the asian
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decode our peak which is incredible so this is fifty percent more
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energy uh compared to a lot of shoots traditional solar panels
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so just to compare the average uh uh power produced with standard solar
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power solar panels is of one fifty four hours because what pick it
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and with the uh as high as you saw cows wrote looking at these
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uh would pretty sequence of what is that you don't know north of spain
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and with the two faced a double faced solar panels we pretty so as much as you would be able to in morocco
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so one of the key advantages of a double face
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panels in alpine sons he if you compare the blue aligns
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uh this is the output of the prosody a the blue line is very linear goes up and it goes
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down in this one so there's less on on it gradually increases over the course of the some money for
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and it goes down again and went to the advantage of double face technology
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is that in march between march and september you have kept pretty constant apart
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i'm noises huh because in march and if we have a lot of snow and it's now reflect
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this on and is higher u. v. levels in in the mountains in these months and in the summer you can have
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a lot of sun in the morning and have clouds a
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a and in another they and and some have stones an evening
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and when you add these factors together you have fairly linear outputs every six months of the year
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and to conclude i would say that with this double faced technology we do not need the snow active snow removal systems
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since actually the sun which it's the panels that melts the snow around removes it
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so just a few words on the demonstration project that conley carrying out today
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so his of the um uh a complete photo of what the product will like uh not uh and about two months time
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so this is the project was thirty six flight instructors and it's floating structure has forty solar panels
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we are able to reach for the forty eight general peachy
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for production output of eight hundred eighty megawatt hours which is important to twenty twenty twenty and twenty seven households
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say hey you have a comforter showing what it will liken this summer the following starter shows the like a
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in the aunts and when it is how awful you can see that the structure follows the
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movement so uh the open our movements of the what's it like and this is a comforter
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of what you like in the winter and panels will follow the shape of
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the terrain e. for i will talk about the technical concepts of this demonstration project
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hey you have thirties
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floaters thirty five with a p. v. panels fifty five solar
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panels and one flight so which is surely a intended for
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the power inverts ah and the transformer third it's two containers containing
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the inverted and transform it for this energy produces directly
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converted to a. c. power via cables floats on like
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this is how we connect the system to the power grid th grade
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yeah so you can see the floating conduit which
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is encouraged to the shore you and we also built
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this spring a medium voltage line which will connect
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be connected to the nearest results to the nearest uh
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plant a downstream from the dam it's
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so are we lines have been invited uh in the in the end of
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the bad of the leg so that we did this when the lake was at its lowest level a road
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those uh uh transfers was dog for the tables and
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this was a significant job because we have historic curves
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uh which show us where the water level will be uh uh depending on the month
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i don't time area and if you're lucky because there's recall there's very little precipitation there wasn't a lot of snow not before
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the month of april may even and we were able to work at the head of the lake at the bottom of the like
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yeah but then the lake uh the water level in the lake
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road quite quickly and we had to complete just for that you
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when the two boards installed the bottom like wouldn't colder cable for
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and in this function we can see the different anchor points
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at the bottom of the like the following stage as you can see is that we already
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uh_huh he have some boys we around already for phase two which will begin in ten days exactly
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this would involve the construction of flirting structures are on the uh
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the short of like before they are uh last on to the water
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so this project well ours to study output over two
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year period and was allowed to assess technical and financial constraints
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to see if they are is profitable haven't oh and this is what a floating solar
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project uh on a larger scale could look like so this is ice multiple megawatt project
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and this concept of between twelve and eighteen megawatts which
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for each use that would lead to the production of uh
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of twenty two to fifty get what how is this
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says panels would have to be replaced after a few years
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um but this is the uh projects uh and uh
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a structure which would have a fifty year life expectancy
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so the first twenty five years would see print output off twenty two
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uh i did what i was in the second half the city appeared with c. production of
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fifty we get fifty one hours so this would uh be enough for almost fourteen thousand households
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so that's the end of my presentation thank you for listening and if you have any questions please feel free
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we thank you very much here on huh
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if you have a question your uh_huh raring to ask please do
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we will be talking about this team in the following round table but if your question no please please ask uh_huh
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could have a microphone please
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thank you
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so how many lakes could this technology potentially be used on e.
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so we conducted a study of the different uh rows of was
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damn dress was in switzerland of uh five years we studied around a hundred alpine lakes with dan's
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inserts in an hour between nine and ten times
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the unrest was a top rope it depending on the
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uh what we want to do but you need to have a fairly a large surface
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air on the lake there wasn't a version which you can find you need to have
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good road access units have a existing power networks and power grids uh
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so nine to ten potential lakes sir thank you very much he on looks
Conference Program
Welcoming address by the Municipality of Ormont-Dessus
Eric Liechti
Sept. 6, 2019 · 9:48 a.m.
Opening of the 8th edition: "Mountains move, move us, move themselves... our role, our mission, our identity. "
Thierry Meyer, president of the Ecovillages Association
Sept. 6, 2019 · 9:53 a.m.
Inspiration. Protect our Winters
Nicholas Bornstein & Sarah Hoefflin
Sept. 6, 2019 · 9:59 a.m.
Round table : How sport can be a driver of the sustainable agenda
Françoise Jaquet, Sarah Hoefflin, Neil Beecroft, Sina Schneider, Nicholas Bornstein
Sept. 6, 2019 · 10:14 a.m.
CE2, Circular Economy Entrepreneurs: here we go!
Cornelia Giger, Adèle Thorens, Corinne Feuz
Sept. 6, 2019 · 10:55 a.m.
A solar park on a mountain lake
Guillaume Fuchs
Sept. 6, 2019 · 11:46 a.m.
Round table : How to bring the energy transition to altitude?
Florence Schmidt, Martin Senn, François Vuille
Sept. 6, 2019 · 12:03 p.m.
Round table : Sharing knowledge, between simplicity and complexity
Olivier Dessibourg, Pascal Kober, Emmanuel Reynard, Frédéric Fournier
Sept. 6, 2019 · 1:50 p.m.
Questions about the project "On a mission"
Frédéric Fournier
Sept. 6, 2019 · 2:40 p.m.
The DiabLab project - Introduction
Eric Liechti
Sept. 6, 2019 · 2:47 p.m.
The DiabLab project. Towards sustainable public lighting
Guillaume Fuchs
Sept. 6, 2019 · 2:51 p.m.
Destination circular economy: how tourism can become more resource-efficient – a CE2 Lab - Projet Isenau 360°
Thierry Weber
Sept. 6, 2019 · 3:15 p.m.
Destination circular economy: how tourism can become more resource-efficient – a CE2 Lab - EHL
Noémie Danthine
Sept. 6, 2019 · 3:27 p.m.
Destination circular economy: how tourism can become more resource-efficient – a CE2 Lab - Kitro
William Downey
Sept. 6, 2019 · 3:35 p.m.
Destination circular economy: how tourism can become more resource-efficient – a CE2 Lab - Synthesis
Thierry Weber, Noémie Danthine, William Downey, Samuel Kilchenmann
Sept. 6, 2019 · 4:12 p.m.
Synthesis and rendering of the workshops in plenary session
Panel
Sept. 6, 2019 · 4:32 p.m.
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