roaring engines and no pollution
wherever you live you have decent quiet
nature is able to bloom everywhere you
can drive to polish coast and back just
after charging your car from a socket
overnight or after a short stay in a son
you can feel a little bit like an 80s
and be able to fix your personal car by
yourself at home it would be great
wouldn’t it unfortunately our reality is
a bit different how many of you drive a
car every day we are constantly using
petrol or gas which is absolutely no
tech friendly and let’s face it not
really tipped to use what do we need to
change the status quo we need courage
courage to step out of your comfort zone
and do something more than just letting
things happen I’m sure that in your life
there was more than one situation when
you thought wow it would be so great to
do this but all you actually did was
just thinking didn’t you we are members
of lot solar team a group of students
changing the status quo but how did it
happen actually our friend Lucas went to
Netherlands for studies and his the
living proof that travelling broadens
our mind he came back with an idea of
the solar project absolutely uncommon
here in Poland but they’re in
Netherlands actually really popular and
at first he had exactly the same thought
as we mentioned at the beginning how it
would be great to do that but what is
the difference he did it he found the
team and launched the product from your
own experience you probably know that
Poland is such a crazy country to be
sure that this kind of project has
absolutely no chance for success but at
the same time it must be successful why
well our national system is crazy in
this rather negative meaning completely
unwilling and unprepared for such
students actions but at the same time
Polish people especially the young ones
are crazy in this positive meaning to
believe that everything is possible
Lucas undoubtedly wanted to achieve
something remarkable but still believe
me the effect absolutely exceeded his
expectations first members of lots alert
team found that there is absolutely
nothing better than to learn from the
best they went again to Netherlands to
visit university of twente and at the
same time one of the best the most
experienced solar team in the world
thanks to this visit our enthusiasm was
even bigger but at the same time we
realized that we need much more
resources than we supposed solar team
vente has been building solar powered
cars for 20 years now they University
schedules their budget as for any other
department they don’t think about money
they are simply supposed to build the
best solar car in the world well our
situation was a bit different maybe we
were not supposed to build the best
solar car in the world but at the same
time we had no money for that what is
more we had actually not enough
knowledge and no support at first almost
nobody believed that we can achieve
anything in this field however we are
the lucky ones outstanding idea and
Digger enthusiasm was enough to get the
grant of Ministry of Higher Education at
that moment we thought it was everything
that we need and we must simply design
bill solar power vehicle obviously it
will occur to be much more complicated
so far there are over 80 people who has
somehow connected with our team and 20
of them who went through the toughest
stage represented as during bridgestone
world solar challenge 2015 in australia
by the time of australian race we
developed also our organizational system
the team is developed is divided into
five different departments mechanical
electrical final sync and cooperation
development marketing and accounting
this can show you that this is much more
than just tinkering but let’s move to
the start of tonight solar powered
vehicle we have the project and we have
to build it somehow sounds easy right
1440 working hours of at least four
people 50 kilo me 50 meters of cable 5
kilograms of spackle 100 square meters
of carbon fiber 1.5 liters of lacquer 25
kilograms of resin 80 kilograms of
batteries 6 square meters of solar
panels and let’s say about one hundred
sleepless night for the team so how to
get down to it you need to start with
the body our one was made of carbon
fiber by one of our partners companies
what is important and I think quite
interesting nobody has been preparing
such a big mold as we needed before and
that is why we asked for help our body
consisted of two elements upper here and
lower and thanks to it the installation
first actual work was mounting the
construction and supporting the body
then we had to get down to suspension
without dampers yet but with steering
and brakes on the rear axle at the same
time our electrical team was working on
the first computer-based steering system
in such a construction enabled us to
perform first driving tests that was
awkward of July when our car was when
our car drove for the first time both
parts of the body were not even glued
together at this moment and it also
appeared that our acceleration pedal was
not connected so imagine you were in the
car you were supposed to drive it
somehow but the only one way to modify
the speed is to put something some
number in the computer and but yeah you
have absolutely no physical control of
speed yeah that was really strange
feeling and this retest will test
results were absolutely not satisfying
so we simply go back to work we had to
weld our safety cage fitted precisely in
the body then fit our dashboards and
seat and print for example our lamp
housing yeah exactly print I don’t know
if you know this technique but for us 3d
printing was really really useful during
this project and we used it much more at
than once after that we had still a huge
quantity of small item strings how to
install inside of our body just before
joining both parts of the body together
when it was finally done we had some
time for steering fin doors and finally
our car went to the paint
the electric and electronic parts were
not any easier in the meantime our
vehicle was worked with batteries and
inverters and after the painting the
crown jewel solar panels came into play
we’ve of course tested all our systems
in the Sun to make the proper
connections between solar panels with
inverters and converters I bet you’re
not able to mention all the parts of our
vehicle right now but what’s even more
impressive we’ve done the whole building
part within two months only when our car
was basically ready we wanted to give it
an honest test driving around our campus
they didn’t seem like enough for a car
that was supposed to drive through the
whole Australian continent we were brave
enough to take our baby on the railroad
and drove from wood to Antigua well the
car was fine but the driver well when he
got out completely wet we knew we have
to do something with ventilation system
before challenging Australian desert
looking at performance data we’ve also
decided to change our engines to
Japanese ones with them we had a better
chance for success and we were doing
this just before the shipping seems like
hard work in a rush well it was indeed
but nothing can beat the feeling when
you know you achieved something
remarkable the night before the premiere
of our car the whole team spent in a
garage working the sleepless night
tousled hair recent fingers at different
socks on feet are nothing in comparison
with the moment when we could proudly
remove the red cloth covering our car in
front of all the sponsors all the people
that believed in us a time in times
where we had really nothing to show them
but now we definitely have it how do you
think what is the maximum speed what is
the range and what is the weight of this
car so after two months of garage
working we have 420 killer
vehicle with homologation prepared for
transport of two people in comfortable
seats covered with anti moisture metalia
material with the range up to 1500
kilometers it means that you can go to
Berlin for shopping put all your dresses
and staff to the spacious trunk and come
back home speeding 120 km/h because yeah
that is the maximum speed of our vehicle
yes and what’s even more impressive well
we were never stopped by the police when
they see us on the road they see just
like the license plate with open wide
eyes but it’s okay for them so they
don’t control us at all yes but speaking
of speeding how does it actually work
well the Sun emits energy that reaches
the F so-called sunlight is a stream of
little particles that we call photons
now who had the photoelectric effect at
school but everybody had it nobody will
admit it but don’t worry we won’t test
you well when the photon hits the
surface of solar panel it extracts an
electron from the semiconductor creating
a pair of electron and a hole we say
that electrons are negative but the
holes well they are neutral but
combining with electrons they create a
potential difference and electricity
flow that goes to inverter this device
changes direct current into alternating
current like the one in our sockets then
depending on the state of vehicle if
it’s moving or if it is stopped the
energy can be sent directly to motors or
two battery logically when we are
driving we tend to use instantly energy
gathered by solar panels so we are
sending it to motors and if we are
stopped we want to store it in battery
for the later use what does it mean to
us actually it means that the sunny day
is not necessary to drive the solar
powered vehicles vehicle to the world
to work or school our car is ready to
use even if it’s cloudy because the
energy is accumulated in the battery and
these are the basics of photo a photo of
photovoltaics that we teach children
taking part in the classes prepared in
cooperation with lots University for
children that is really the great
satisfaction to be able to build the new
generation of aware poles who are brave
enough to search for creative and
innovative solutions that is something
incredible when we can see children’s
out faces when they can see that if you
want you can make your dreams come true
all you need is a good plan courage a
consistent a consistency in actions well
during this project we were in trouble
more than once we got a solid lesson of
humility but now we can say that our
dreams came true we’ve driven across
Australian continent over 3,000
kilometers without any problems well the
flat tire was our biggest one we came
across the finish line as the six in our
category being the best team among
debutants we also want the safety award
meaning that our car was the safest
among all participants can you imagine
we the polish team are the best in
something in the world now it’s even
better when someone says it out loud but
this was not enough for us we had a
courage to take on a new challenge
improve our car and take partially new
team to extreme conditions in South
Africa and we do not regret this
decision thanks to the second race we
know that our car is able to drive
even in really extreme conditions like
strong wind and mountains we did not
only have a good score we’ve driven over
two thousand eight hundred kilometers we
did not only started a completely new
class of cars during social solar
challenge but we’ve also proved that
we’re quite good in marketing we want
the communication award for the best
media team but guys there is one more
aspect of solar challenges do you know
that in this kind of races there is no
price but the title and satisfaction
because solar challenge is not about
winning it’s about creating new
solutions improving technology and
making world a better safer place
everybody perceives Environment
Protection differently but whatever you
think you cannot deny sunny December or
snow emerged that we have now in Europe
we are responsible for the for the earth
the home of future generations our idea
conducted nonprofit by us and other
solar pains prove that it is possible
not only to get rid of engines but also
to save electrical energy using solar
power if solar vehicles are cheaper less
complicated and moreover ecological why
don’t we use it on daily basis is it
really about this adorable engine
throbbing we will leave you with with
this question tonight thank you very much for your attention