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L’enjeu énergétique nous concerne tous | Farid AUBRAS | TEDxRéunion


[Applause]

[Music]

[Applause]

my grandmother was a housekeeper in

the highs of saint paul for a rich

family descendants of the family of

basins his grandfather was a slave

the shore by boat as animals

positive bastien his daughter my mother was

hairdresser and I am electro

chemist

so I am a student researcher I

works at the university of the meeting

in energy physics

since very young she kept telling me

thing my child my child is not letting

sun except umbria in the morning at night

my child spas sun except zombré

literally in French that means

do not let the sun heat up and at

navel so to remove her from big

things work you have to get up everything

you have to have toughness

self-denial for great success

things this thought guided me during

my studies and in my current job

second thing the sun is thanks to

this Creole saying that I understood

paradoxically that the sun was a

immense energy

let’s talk about energy you know that the island

Of the reunion

we do not have fossil energy this

that I mean by fossil energies what

are all those energies that are not

renewable fuel oil coal for

the example but we have the sun

solar energy can be captured through

photovoltaic panels

we have wind energy the wind

we have the energy of the seas and we

also have energies that are

untapped such as geothermal energy at

the challenge

a simple question why in

2007

soon 2008 solar energy is not

our primary resources why 67 %

electrical energy that is produced

on the island of the meeting comes from

fossil energy to there are answers

so what is this a

technical scientific problem

political economy

you know I’m a scientist and I

will talk about science

the answer is in the question this is

a multiple problem with many

answers we can say good let’s develop

solar energy so let’s take some

photovoltaic panels and put in

on the roof on our schools

even on our heads this is what we are

is currently selling the expansion of

solar energy panels

PV

but that’s only a small part of the

reply

Why

solar is by definition an energy

fluctuating

indeed when you have one of the sun

nice sunny day you have a

electric production

the photovoltaic panel you have a

cloud this fall production

you have the night that comes there is no

more production so this energy

is by definition fluctuating

it is intermittent and we can not

consider as a constant energy

in the same way as the fossil so the

real problem behind

renewable energies

it is the storage of these energies then

what to do so

let’s go back to the time lontan invest

in the oil alan finger candle

it’s going to bef all the love I have

own Creole Reunionese culture I

do not think it can be

possible at the moment consumption

and tablets computer consoles of

games have self tune and it’s not

possible

to develop things that’s

my job is the work of

my colleagues at the university meeting

including storage

let’s talk about this storage two scenarios

possible

take a Reunionese family

single parents two children and

photovoltaic panels installed on

the roof of the house

you have beautiful days

sunshine the panel

photovoltaic will produce you from

electricity

imagine that this production is

greater than the demand

we stop the surplus of

cyclone scenario sullen day the

electricity production is less than

the demand

we use the heavens more than we have stored

to produce electricity

it’s very simple we call it

decentralized energy

I think that’s the future then

storage you tell me but it exists

why it’s not answered on the island of

the meeting

storage we know we all have

batteries in our cars

lead batteries

we have in our phones and

lithium battery of our computers

but the step in the paradox is there one

can not store energy

renewable using a storage

which is not renewable

so we need to develop

renewable storage systems this is

there that hydrogen intervenes in paris to

hydrogen

let’s talk about hydrogen take a

molecule from where they water molecules is

composed of one oxygen atom and two

hydrogen atoms are held by

lions if I put an electric source

electrons with

on ecology you get to

dissociate these anti social molecules these

molecules I get to get from

the hydrogen this process it exists since

long time

this is called the electrolysed water

so from water zoo algae

their cock for example you

did not store electrical energy

without going through topics such as

lead such as incidental materials

which are renewable

it’s beautiful the reverse process

also exist

take hydrogen you just

create you put with oxygen

you gather and you have a

electrical production the process exists

it’s called fuel cells and

which is beautiful in these

technologies that I defend I believe

highly secure the only reagent that h2o

so there we are totally renewable

he has several locks still to lift the

first lock that’s the price it costs

expensive

saving the second lock the

durability

the systems have to be more

more sustainable

the third verse where the sua t1 that sits

as we do to answer 7 this

problematic of this yacht and I you

say you have at home with goals

butane and propane bottles

highly flammable

so in fact following pedagogy for not

tell this problem the yacht is

so sect at home this technology

it exists and I hope we

will allow tomorrow to the east of the meeting

the mauritius island seychelles

all these islands of the Indian Ocean that

have a strong solar potential to have a

coefficient of energy dependency

close to zero bye bye the oil

we consume what we produce

my dream

I imagine this meeting tomorrow we

consume what is produced

I imagine this meeting tomorrow which

no longer needs to call someone to

15000 kilometers to bring some

tons and tons of fuel

I imagine a meeting tomorrow where each

family each neighborhood has its own

electric production

I think it’s possible the

energy transition is possible I

quote a sociologist florence rey us

the says that energy is not a

simple variable that feed a

system

it’s a choice it’s a social choice

energy is a societal choice

no society it’s you it’s us and

our children

so please make your choice

I will end up

little anecdote you know in the

80s at the island of the meeting

we were renewable without fish

have worked totally on energy

hydroelectric on the island of the meeting

before the 80’s we were 300 miles

we did not have that way of life that we

currently have

but what’s so funny about it when

we listen to the global discourse that we

of course you have to go to

new technologies

directing the great consciences of

scientists

the future will be renewable what is

paradoxical is that we our past and

is renewable and as

reunion as a island law as

that people without resources

fossil

the future our future will be our past

will be the return to our old values

at the reunion its Creole values ​​of

reasoned consumption of consumption

decentralized me I find that

beautiful to finish it was I like

maloya badly thanks to the music

traditional island meeting

I love this style I also like the

science as you could understand it

and with my friends we invent to invent

a maloya renewable maloya

renewable energy

it’s like that in the sunshine clerity

baballe is dirty clery when lives

happens to t1 to rodez way for

turn ali thank you

[Applause]

[Music]

[Applause]

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