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| La Burdigala bière BIO |
Juste pour faire un petit update important sur ce qu'il se passe pour moi: je suis devenu chef d'entreprise ! #laclasse ;)
J'ai montée une brasserie de bière artisanale en région bordelaise 100% bio (évidement) : Brasserie Burdigala (du nom gallo-romain de Bordeaux).
La bière elle même s'intitule La Burdigala et vous pouvez retrouvez tout ça sur le site officiel: bieredebordeaux.com
(image from http://www.agaetech.com)
This could very possibly be the technology missing for photovoltaic to finally challenge on equal footing any type of fossil energy !
Indeed, one of the major if not the biggest challenge with PV panels, are their inability to produce energy at night and therefore not to provide electricity 24/7.
The only solution thought so far was to store the un-used amount of produced electricity, a process that is both costly and difficult to manage. Not to mention the loss of energy in the storing process.
A recent breakthrough that is the graphene/silicium battery could be an answer since it increases considerably batteries abilities, charging and life time. Yet the costs and malleability remain quite consequent with a battery-form storage.
Step in Dr Dan Nocera, a Harvard professor and American chemist who developed an ARTIFICIAL LEAF !
Great ! Awesome ! Neat ! WTF ?! What has this to do with anything ??!! You may ask.
Well first of all watch your tongue people ! You wouldn't kiss your mother with that mouth. And second, don't be so eager to take the royal pajamas might I answer !
It has to do with everything because the artificial leaf mimics the photosynthesis process that green plants use to convert water and sunlight into energy !
Still not following ?! The artificial leaf transforms water into hydrogen and oxygen which are both usable fuels !
Which means that the artificial leaf is the perfect interface that would transform sunlight into clean fuels that are hydrogen and oxygen ! And because it's a fuel, it can be used anytime, anywhere, however and is also way easier in terms of transportation.
Hence, the photovoltaic/artificial leaf could be the PERFECT combination for producing clean energy regardless of day time, in a fuel form that is both way easier to store and multi-usage (hydrogen powered cars) and STILL COMPLETELY CLEAN from production to usage stage !!
Very pragmatically: If your house is hydrogen powered, it is now a 24/7 self-sustaining entity (energy-wise) relying only on the sun !
In lemons terms: the artificial leaf is the answer to the energy storing issue of photovoltaic panels !
But producing hydrogen by electrolysis is an "old" and well known process, so why is the artificial leaf any "breakthrough ?!
Great question ! Even if the concept is rather ancient, the tremendous added values of the articial leaf are that:
- it's wireless
- uses a CHEAP nickel-molybdenum-zinc compound catalyst and a cobalt film instead of a cost-prohibitive platinum catalyst
- on top of being cheap the materials used are earth abundant
- this technology is already operational and therefore can be used/implemented right away
=> artificial leaf systems can be implemented in remote places and developing countries as well !
One issue I might see would be that fresh clean water is more and more scarce of a resource... Ergo what's the ratio water converted/fuel created ?
According to Dr Nocera, it only takes 1.5 bottles of drinking water to power a house for 2 days.
So the ratio seems rather "good enough" given the rising scarcity of water not to be to big of an issue.
Fuel for thoughts though: does it work with salt water ? with "dirty"/unfiltered water ?
The remaining obstacle standing in the way of artificial leaf's great success seems "just" to be high engineering costs.
But with the commercial development and use of that new technology, the break even point shouldn't be far away. And that's all we wish for !
Make it profitable, make it sustainable !
http://www.sciencedaily.com/releases/2012/05/120509123900.htm
http://theenergycollective.com/tinacasey/225966/new-artificial-leaf-concept-could-blow-fuel-cell-market
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Credits
to Dirk Ingo Franke
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And I would say "good on you" + "get
amongst it" since I do believe critical thinking is the corner stone of
real freedom and "progress" in the most positive way, and since that
would be a good and objective use of it. Although, like most things, it would
be biased by our "humanity" that makes us so wonderfully imperfect.
That bias being of course that we mainly seek studies and materials that comfort and support our pre-formed opinions; and disregard/discredit studies and materials that contradict them. Being no exception since that blog is mainly about positive technological breakthroughs and overall supportive news and analysis of renewables and sustainability as a whole; I however am aware of such a bias just like I hope/expect it’d be the same for my readers (what do you mean there are none?!).
But Greg, then how can we trust this study? (or any
studies at all for that matter?!) Good question reader, good question indeed…
Well the key criteria to recognize the seriousness, application and overall
quality of a study so it cannot be totally rejected at once are commonly:
reference (towards recognized academic materials) and credits (who wrote it/in
what context) plus explanation of the methods used and why.
Such criteria are commonly accepted among rational
people in order to reach consensus and generate constructive criticism so we
can move on, improve and get things done and also escape the really annoying BS
statement “everything’s
a matter of opinion/belief”.
And since we’ve all acknowledge that fact in joy and felicity and did put our objective caps on, we can now move from these boring (yet incredibly clever and thoughtful ;) ) considerations to the interesting findings of that study.
And since we’ve all acknowledge that fact in joy and felicity and did put our objective caps on, we can now move from these boring (yet incredibly clever and thoughtful ;) ) considerations to the interesting findings of that study.
Although at this point I’m not even sure what I’m writing about in
this post anymore! « I am so clever that sometimes I don't understand a
single word of what I am saying » Oscar Wilde => BOOM ! Self
high-five ! ;)
Back to the point: You can find all these elements
(reference, credits, method dispute) in this thorough and at times technical
study that you CANNOT now just disregard given that I bamboozled you with 350
words of wisdom in the previous paragraphs:
"Cost-minimizedcombinations of wind power, solar power and electrochemical storage, poweringthe grid up to 99.9% of the time"
"Cost-minimizedcombinations of wind power, solar power and electrochemical storage, poweringthe grid up to 99.9% of the time"
It's been carried out by several authors from several study departments of the Delaware University in Newark USA, and its conclusion are (drum roll, I know you’ve suffered to get to this point):
" At 2030 technology costs and with excess electricity displacing natural gas, we find that the electric system can be powered 90%–99.9% of hours entirely on renewable electricity, at costs comparable to today's—but only if we optimize the mix of generation and storage technologies."
1/ It’s
feasible and renewables are sufficient in themselves (no need to complement
with fossil energy)
2/ It’s
cost effective (costs comparable to todays in a 15 year projection)
3/ We
need a multi sector approach and to improve/optimize energy storage technology
That third point is exactly what I’ve been preaching:
That third point is exactly what I’ve been preaching:
“ … in my point of view it is absolutely vital NOT to rely too much/be dependent on just one source of energy, “clean” or not. History as taught us through the oil crisis, the danger of being too dependent of just one source of energy which is why we need to apprehend the energy stakes and challenges with a multi-sector approach in order to reach a clever and complementary combination of energy industries: solar, hydro, wind turbine, biomass…”
Airborne Wind Turbine article
Just like
I’ve been overly enthusiast about recent breakthroughs in energy storage
technology: "Batterie Graphene" (few seconds of recharge for weeks of use with more than doubled battery life expectancy)
On top of
that, I also maintain the need we have for decentralized energy:
“Additionally, it seems self-evident that energy production must be as decentralized as possible! Instead of huge power plants powering entire cities by themselves, each construction, house or building should be thought as an autarkic entity, a mini power plant in itself self-sufficient energy wise. That’s that much issues less in terms of power shortage and so on !”
Airborne Wind Turbine article
In
conclusion, my dear friends, all of this post to repeat yet again but one thing:
renewable energies, OH YEAH ! It makes sense economically, it makes sense
environmentally, it makes sense energetically, strategically…
It makes sense!
Period!
Make it profitable, make it sustainable
1/ Dépendance du photovoltaïque vis-à-vis des
politique de soutien
Une question clé pour les énergies
renouvelables en général et pour le photovoltaïque en particulier est de savoir
quand le secteur va t’il devenir assez important pour être « auto-suffisant ».
Autrement dit : A quel moment/dans combien de temps le secteur pourra t’il se
passer de politiques de subventions pour exister ?
En effet comme le rappel bien Pierre Genin*,
président de la SMA, les marchés du
photovoltaïques tout autour du monde sont pour l'instant tributaires des
politiques plus ou moins volontaristes et plus ou moins efficaces de chaque
pays.
C’est particulièrement vrai pour la France
dont le marché photovoltaïque connaît une période très difficile à court terme,
principalement en raison de la complexité et l’inconstance des politiques d’aides à la filière ; ou encore comme développé par Pierre
Genin, une baisse
des tarifs d'achat plus forte que la baisse des prix des systèmes
photovoltaïques.
La résultante étant que le photovoltaïque en
dépit d’une réduction spectaculaire de ses couts de production (due notamment à
l’impulsion Chinoise*) et d’un progrès constant en termes d’efficience et productivité sur une courte période de temps ; n’est pas encore un
marché assez mature pour se passer d’aides afin d’être assez rentable et
compétitif par rapport aux sources d‘énergies déjà existantes.
(Pourquoi l'Europe s'attaque-t-elle au solaire chinois ? Le Monde.fr | 06.09.2012)*Depuis cinq ans environ, la Chine investit massivement dans l'industrie photovoltaïque, à coups de dizaines de milliards d'euros. "Cela lui a permis de créer d'énormes économies d'échelle et donc de baisser les coûts de fabrication. Le coût du travail, très bas, lui a aussi permis d'abaisser les prix. Enfin, les entreprises chinoises jouissent d'un contexte très favorable, les banques d'Etat leur permettant d'emprunter à des taux intéressants tandis que les autorités locales leur vendent des terrains à des prix très bas", expliquait Paolo Frankl, responsable de la division énergies renouvelables à l'Agence internationale de l'énergie, dans un entretien au Monde.fr.
2/ Croissance mondiale à 2 chiffres
Mais, ne nous y trompons pas, avec une croissance du chiffre d’affaire au plan
mondial de 15% en moyenne par an et des prévision de croissance
alléchantes, le photovoltaïque est une pépite d’avenir qui appartiendra à ceux
qui auront réussi à durablement s’implémenter et « tenir le coup »
jusque là.
Il serait donc dommage de ne pas avoir de
« champions » nationaux ni de passer à coté d’une occasion de
reconstruire un peu une industrie française dont on n’arrête pas de déplorer le
déclin. Surtout quand on sait l’excellence et la compétitivité dont l’industrie
française peut faire preuve ! (Ex : "L'industrie française de production de silicium fait de la résistance").
Et sans parler du fait qu’une industrie si
« technologique » est particulièrement pertinente en termes de
valeurs ajoutées pour un pays comme la France qui est à la fois
industrialisé, dispose d’une connaissance et un savoir faire technologique de
haute volée, et qui par dessus le marché (c’est le cas de le dire) possèdent
des centres de formation et de recherche remarquables (polytechnique, central…)
pour fournir le « combustible neuronal » !
3/ Une « parité réseau » pour bientôt
Mais pour quand alors serait cette « parité
réseau » qui permettrait au photovoltaïque d’être « price-competitive »,
sans aides ?
D’après Pierre Genin, cet objectif commencerait
à être atteint dans 4-5 ans voir même dés 2016-2017 pour le sud de la France.
Il ne reste plus qu’à espérer que ces
prévisions ne soient pas trop optimistes et que cette maturité industrielle
arrive le plus vite possible pour qu’on puisse enfin passer la seconde !
Make it profitable, make it sustainable !
When it comes to innovation, the human mind
can be baffling I must say. This could be the evolution of Wind Turbines and A)
How cool is that? and B) HOW COOL IS THAT ?!!!
A video or a picture often is better than a
speech so before you wonder: how the hell does it work/take-off/land
etcetera...Here is a quick video by Makani Power (a start up acquired by
Google) that explains all that:
Now for the deep and meaningful analysis ;) :
Wind turbines are great, quite effective
cost-wise if the initial investment is possible and as a result, heaps of
different versions are created: for all types of winds (medium, strong and low
winds), at sea to exploit stronger winds and reduce visual impact and so
forth...
Wind Turbines are ugly
On that particular critic (visual impact/wind
turbines are ugly) which is probably the most common grief over wind turbines,
I would just object once and for all: AS OPPOSED TO WHAT ?!!
Indeed beyond the simple matter of taste, what
would you rather have (just visually speaking) instead of a field of wind
turbines?
A huge coal or petroleum power plant? A
big-ass nuke reactor then? Not to mention the mines that would go with coal
power plants nor the inevitable permanent smokes over such installations?
Wind turbine designs don't seem that awful
with that in mind now does it ?! And I, for one, find the dynamic landscapes
created by the vision of these rotating giants quite nice regardless and I
genuinely enjoy watching them as I drive along.
Competitive advantages of Airborne Wind Turbine
But back to the main focus of this article:
Airborne Wind Turbines. First of all, why would one want to use ameliorated
kites instead of strong, big columns of concrete?
Well the answer is within the question:
because they are huge big columns of concrete, meaning the investment is quite
substantial at the start and maintenance is not the easiest one either.
=> So first and major argument is the
incredible cost reduction! 90% of less material, you can easily divide by 2 at
least your costs and that's even before economies of scale that should come
with production and democratization of the technology that will make the price
competition more and more affordable.
On top of that you add that replacement of
kites would logically be way easier/cheaper and so should be maintenance.
=> Second, it allows access to stronger
and more consistent winds at higher altitude + its rotation is a lot wider than the
biggest classical wind turbines => more energy generated more consistently at substantialy decreased costs.
What about storms ?
There was one thing I was perplexed about though: what of storms/hurricanes or other weather tantrums? And what about when there's no wind?
What about storms ?
There was one thing I was perplexed about though: what of storms/hurricanes or other weather tantrums? And what about when there's no wind?
That's the part I must say I got baffled:
This particular company (and no doubt other will/are following that strategy)
developed an automated take-off/landing system where the "Kite
Turbines" take off and/or land automatically depending on conditions,
using their own rotors to softly execute such manœuvres:
The necessity
of a multi sector approach
So are airborne
wind turbines the perfect solution? Well nothing is perfect and in my point of
view it is absolutely vital NOT to rely too much/be dependent on just one
source of energy, “clean” or not.
History as taught
us through the oil crisis, the danger of being too dependent of just one source
of energy which is why we need to apprehend the energy stakes and challenges
with a multi-sector approach in order to reach a clever and complementary combination
of energy industries: solar, hydro, wind turbine, biomass…
Decentralize
energy
Additionally, it
seems self-evident that energy production must be as decentralized as possible!
Instead of huge power plants powering entire cities by themselves, each
construction, house or building should be thought as an autarkic entity, a mini
power plant in itself self-sufficient energy wise. That’s that
much issues less in terms of power shortage and so on !
The best business model
In conclusion, beyond the amazement at what we can do, airborne wind turbines are just another example on how much economical sense sustainable development really does !
A tenacious yet completely faulty paradigm
that stands too often in the way of humanity improving itself and its
environment, is that you have to CHOOSE between economical and environmental
performance... When the two are just complementary !
This dommageable belief needs to be repeatedly
called out until it stops shackling progress.
Sustainable development is very logically the
best business model on a strictly profit/economical perspective because, wait
for it, it's SUSTAINABLE !
Make it profitable, make it sustainable !
Quand l'efficacité énergétique
rencontre l’innovation technologique... PAF ! Ca fait vraiment des
chocapics !
Après les hydroliennes à Bordeaux, la
nouvelle génération à venir de batteries au graphène ; la révolution des imprimantes 3D ; les éoliennes aéroportées
et la
géniale diminution des couts de fabrication des panneaux solaires
; voici venir les films photovoltaïque transparent, adaptable sur
toute surface vitrée (vitre, portables, ordinateur, hublots…).
Difficile ne pas se passionner !
J’ai déjà publié plusieurs articles illustrant
les synergies phénoménales générées par la rencontre de l’avancée technologique
avec les énergies renouvelables mais je dois dire que l’excitation face à de
telles innovations reste intacte !
Rendre toute surface vitrée (animée ou
statique) comme un potentiel panneau photovoltaïque transparent ? C’est le
petit exploit qu’est arrivé à produire la filiale Wysips de Sunpartner et qui a
été primée lors du concours international organisé par le Salon CTIA wirelessd'Orlando aux Etats-Unis.
Source et pour pus d'infos: http://www.latribune.fr/green-business/l-actualite/20110406trib000613565/le-soleil-permet-de-recharger-les-telephones-mobiles.html#!
Produire des panneaux photovoltaïques
souples, ça on savait déjà faire mais arriver à les rendre assez transparents
pour pouvoir les appliquer sur des écrans et des vitres… c’est ça qui donne à
cette innovation un potentiel des plus fabuleux !
On imagine déjà les champs infinis de
possibilités d’application ! (hublots d’avion, vitres, écrans en tous genre,
panneaux auto-suffisant…).
Et ce n’est pas tout ! Cette petite merveille
se recharge également à la lumière artificielle (éclairage) ! Si !
L’estimation est de 6h en plein soleil
pour une recharge complète de votre smartphone ce qui est franchement pas mal quand on est dépourvu de chargeur et/ou de possibilité de charge. Mais c'est surtout le fait de pouvoir prolonger à chaque exposition à la lumière (quelle qu'elle soit), l'autonomie de votre appareil !
On imagine également le potentiel de l'application de cette technologie dans des endroits défavorisés dépourvus d'un accès facile à un réseau éléctrique de qualité.
Enfin bref, une affaire à suivre et vivement l'arrivée de cette technologie pour le grand public ce qui ne saurait tarder.
Make it profitable, make it sustainable !
Cocorico régional, national et international !!!
Je ne suis pas plus patriotique ou chauvin
qu’un autre, mais quand ma ville (Bordeaux) devient le plus gros projet
d'hydrolien fluvial du monde et le banc d’essai national pour développer cette
nouvelle technologie et filière… Je dis cocorico !
Car oui à partir de l’été prochain, Bordeaux
va devenir l’endroit ou va se tester et s’évaluer toutes les différentes technologies
et formes d’hydroliennes afin de valider faisabilité, efficience, rentabilité
etcetera avec 4000 emplois à la clé !
Source et pour plus de détails : http://www.latribune.fr/regions/aquitaine/20131015trib000790704/bordeaux-capitale-mondiale-des-hydroliennes-fluviales-en-2014.html
Etant bordelais et passionné d’énergies
propres, vous imaginez mon excitation de partager cette nouvelle, surtout quand
on réalise les potentiels et les marchés qui s’ouvrent :
- Les 5 hydroliennes qui seront mis en place
suffiront à elles seules à alimenter plus de 20% de l’éclairage public !
- Possibilitée pour toutes les villes
fluviales/portuaires d’accès à une source illimitée et invisible d’énergie qui
en plus est propre
- Exporter savoir-faire et technologie à
l’international
- Création d’une entièrement nouvelle filière
qui fera bien évidemment appel à tout un tas d’autres industries (cabinets
d’ingénieurs/d’études, industrie méttalurgique et de construction…)
Etcetera etcetera… Bref les enjeux et le
potentiel sont énormes !
Le projet en vidéo :
La seule réserve que j’émettrai est d’ordre environnementale :
Il reste en effet encore à démontrer le non-impact, ou du moins assez
négligeable pour ne pas avoir à être pris en compte, de la technologie
hydraulienne sur l’éco-système marin/fluvial.
Mais même cet aspect est censé être pris en
compte dans cet ambitieux et magnifique projet qui à n’en pas douter va "faire des petits" !!
Plus d’info sur le projet Seenneoh : http://en.france-energies-marines.org/Test-sites/SEENEOH
Make it profitable, make it sustainable !
Mémorisez bien ce mot: gra-phène !
Ce nouveau matériau (forme de carbone
cristallisé) découvert en 2004 semble posséder un potentiel d’applications dans
le domaine de l'énergie/écologie tout à fait remarquable.
Plus particulièrement et à en croire les chercheurs de
l'université Vanderbilt (Tennessee), le graphène permettrait de rendre possible
une nouvelle génération de batteries (pour smartphones et ordinateurs
notamment) aux performance hallucinantes !
Temps
de recharge de quelques secondes pour une longévité de la charge de plusieurs
semaines et avec une espérance de vie de la batterie 3 fois plus importantes
que celles utilisées actuellement ! (5000 recharges contre 1200).
Phénoménal
n’est-ce pas ?! Et presque trop beau pour être vrai ?!
Et
bien non : l’Union Européenne ne s’y trompe pas puisque 1 milliard d’euros
a été dédié à des recherches sur le
graphène s’étalant sur 10 ans.
Et
en plus de ses applications dans le domaine du stockage de l’énergie, une
variante du graphène, le « graphène blanc » serait le champion de la
dépollution aquatique (marée noire entre autre) !!!
« C'est
ce qu'affirment des chercheurs qui ont testé les propriétés dépolluantes du
nitrure de bore, capable d'absorber 33 fois son poids en pétrole ou solvants
organiques tout en flottant à la surface de l'eau. »
On
souhaite au graphène de confirmer ses promesses, mais dans tous les cas c'est un matériau dont on va entendre parler !
Make it profitable, make it sustainable !
3D printers are nowadays described as the next industrial revolution and it is yet to reach its full potential ! Countless examples of incredible applications and endless possibilities made out of 3D printing by both particulars and industrials have flourished on the web ranging from making guns at home to building a lunar base ! True story !!!
=> here is the NASA article: http://sservi.nasa.gov/articles/building-a-lunar-base-with-3d-printing/
In the same time, another revolution keeps on unfolding also known as "sustainable development". And when the two meet in Australian scientists minds...
BOUM ! You find yourself printing large but extremely lightweight and flexible solar panels !!! (laying a liquid photovoltaic ink onto thin, flexible plastic that is then printed).
It is hard to not get incredibly excited and wonder at the potential of the synergies generated by mixing up 3D printing with sustainable development !
This is just the beginning, can't wait for the next episodes !
Read more: http://www.smh.com.au/technology/sci-tech/aussie-scientists-print-flexible-solar-panels-20130516-2joaj.html#ixzz2jPAWLu8Z
Make it profitable, make it sustainable !
Nous sommes en 2013 et toute la Gaule est
occupée par les géants chinois du photovoltaïque et silicium... Toute? Non! Une
entreprise d'irréductibles Gaulois résiste encore et toujours à l'envahisseur !
Ou quand la qualité de l'industrie française
s'allie avec son voisin espagnol pour survivre et maintenir une filière en
grande partie aux mains de grands groupes étrangers.
L'environnement est ultra compétitif avec un
dumping salarial très difficile à contrecarrer pour les entreprises européennes,
seul moyen de résistance: l'innovation, les alliances et productivité avec une
technologie compétitive.
Et c'est exactement le choix d'Emix qui
s'allie par un transfert de technologie avec FerroAtlántica, une belle victoire
qui mérite d'être saluée.
Une entreprise et une affaire à suivre donc,
avec tous nos vœux de réussite !
ARTICLE => http://www.latribune.fr/green-business/l-actualite/20100906trib000546041/le-roi-francais-du-silicium-vend-sa-technologie-en-espagne.html#!
Make it profitable, make it sustainable !
Yet another article on how waste is.... wasted !
When plastics, petroleum based products, are becoming and will continue to become a more and more rare/affordable resource, the only solution we seem to come up with is to look for deeper, harder and at the end, highly risky to exploit oil deposits...
This is supposed to justify things like hydraulic fracturing and drillings at seas to depth where if anything goes wrong... well there's not much we can do about it and it's the real nightmare... (see BP oil spill).
And this seems even more (forgive the word) stupid when we have on land and also on sea (unfortunately) an incredible amount of resources also known as garbage !
Not only these resources aren't just "raw materials", these are already made plastics that for the overwhelming majority of them are perfectly recyclable !
The economical logic would be to collect these highly profitable resources in order to re-use them and set up products life cycles and processes for these products to find efficiently themselves in a re-usable cycle.
But "Homo Economicus" doesn't really exist (meaning men making rational decisions based on business logic and profitability) and as long as we won't stop seing garbage as garbage instead of the treasure and incredible solution that it is... we'll continue to have "Plastic nightmares" articles...
Source and for more info=> http://www.cleantechloops.com/plastic-nightmare/#!
Make it profitable, make it sustainable !
Beyond this tremendous innovation, this news has got me particularly excited since it's my University we're talking about ! :)
As developed more in depth by the article, a design improvement using hydrogen atoms to counter the defects of the silicon cells used in solar panels enable to reach a top quality efficiency while substantially reducing their cost ! How awesome is that ??!!
This is in a way a potential "disruptive innovation" since it could allow solar panels to reach a greater market by making it more affordable and cost effective without giving up on efficiency, au contraire !
And reach a larger market, make solar panels profitable even on the short term, that is THE key stake of the solar industry !
The solar industry needs to pass ASAP the breaking point where it will be big enough to sustain itself without being oversensitive to the slightest economical change and at the mercy of governments policies, lack of ambition and inconsistence.
For more details, here is the article: http://www.smh.com.au/technology/sci-tech/breakthrough-in-solar-efficiency-by-unsw-team-ahead-of-its-time-20130505-2j117.html#ixzz2jI8f34oN
Make it profitable, make it sustainable !
