Showing posts with label wind energy. Show all posts
Showing posts with label wind energy. Show all posts

Monday, July 6, 2020

The Energy Transition: Who has the right to speak?

Italy is not a windy country and it relies mainly on the sun for its renewable energy. Nevertheless, some spots of the Appennini mountains are swept by enough wind to make it possible to build wind plants. In the picture, you see the wind farm of Montemignaio, not far from Florence, where one of the first large wind plants in Italy was built, already in 2001. It has been working beautifully for nearly 20 years. Other wind plants are planned in Italy, but a strong local opposition and a lack of long-term vision at the national level make their construction difficult and slow.


While the ecosystem starts showing signs of collapse, we desperately need to do something to promote the renewable energy transition. But we seem to be stuck: blocked by science denial, political polarization, sheer ignorance, and slick propaganda. Mostly, what we need seems to be a new way of seeing priorities in a world dominated by financial profits only. But, as the situation becomes worse, we seem to be retreating more and more into obsolete views where everyone sees nothing but their personal short-term interests. In the text below, you can find the transcription of a speech given by Professor Andrea Pase of the University of Padua in an ongoing debate on the advisability of building a wind power plant on the Apennines, in Italy.
Pase masterfully identified a key element in the question: scale, both spatial and temporal. The same concept applies to many other public utilities. Who has the right to speak about a new, planned infrastructure? It often happens that the inhabitants of the affected territories engage in defending what they see as "their" land. But does this mean that the other Italian citizens, engaged in promoting what they think is good for the whole society should not have a say in the matter? Here, Pase broadens his vision to include even those who are not yet born, as well as polar bears, raptors, and salamanders, threatened by global warming that will wipe them out, as it will wipe us all out if we do not find a way to stop burning fossil fuels. 

A beautiful speech, enjoy reading it! (UB)

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Translated from the Italian text that appeared on the "Effetto Cassandra" blog



Good evening, Mr. President. Good evening to all of you.

My name is Andrea Pase. I am a geographer of the University of Padua. I deal mainly with Sub-Saharan Africa, I do research in the Sahel: from Senegal to Sudan, through Mali, Burkina Faso, Niger, Nigeria, Chad.

You will rightly wonder why I participate in this public inquiry, what I have to do with Mount Giogo.

I'm here to try to explain.

I start by expressing a dissenting opinion with regard to what was said in the last debate, if I understood correctly, by a political scientist, Professor Donatella Della Porta, when she said that the telematic mode undermines this public inquiry because it allows many people, perhaps too many, who are not inhabitants of the area, to express their opinion. And that is seen as a profound distortion of the debate. The real problem was thus put on the table: who really has the right to express their opinion on this project?

On the other hand, I fully agree with what my colleague said: the ridge is a "commons". But what border does that commons have? How far does the community we are talking about extend? Is it only about the people who live in Mugello, or in the two municipalities of Vicchio and Dicomano, or does it include only the inhabitants of Villore and Corella?

Whose wind is the wind blowing across the ridge? To whom does the water falling on the Apennine slopes belong?

There is a problem and the problem is that of scale: a classic geographical theme.

The scale actually creates the phenomena: the choice of the scale, first of all the spatial one, is fundamental to identify different aspects of an issue: what is to be included or excluded from the calculation of costs and benefits? One thing to think only in terms of the local scale, another is to think on a national scale and another about the global scale.

The communities convened change depending on the scale chosen. And it is a political and ethical choice, as well as cognitive.

Then there is also the time scale to consider: to whom do we turn? Only to those who live today or even to those who will live tomorrow?


A Nigerian leader questioned in 1912 claimed that the earth belongs to a community of which many members have died, few are alive, and infinite numbers have yet to be born.

I would like to call into this inquiry many voices that have not yet been heard, at different spatial and temporal scales.

I would like to call on the inhabitants of the small oceanic islands that the rise of the sea due to climate warming puts at the risk of disappearance. Not many people, you tell me. Well, then I summon the inhabitants of the great river deltas of the world: the Nile, the Ganges, the Mississippi, the Yangtse, hundreds of millions of people, who are also exposed to more and more frequent floods. Then I call to witness the people of the Sahel, whose faces I have met many times. Climate change multiplies extreme weather events, violent rains, and droughts, complicating their already not simple life.

But then I also summon the non-humans, and not just the raptors and salamanders of the Apennines, I summon the polar bears, I summon the hundreds of animal and plant species at risk of extinction, because of the impact of climate change. I also call to witness the inanimate world, the glaciers that are disappearing.

I would like, again, to summon our grandchildren, those who are small and those who have not yet been born, to ask them what they expect from us.

Everything is connected, we cannot cut out a single place from the world in which it is inserted, from the time it starts, we must assume awareness and responsibility that every choice, however small, has repercussions on other scales. And also the choice we are talking about today: please bear in mind all those we have called to testify tonight. To keep in mind the different spatial and temporal scales involved.

"Scale conflicts", as anthropologist Eriksen says, are inevitable in a globalized world: each solution has different outcomes at different scales. It is not simple, but it is essential to try to make dialogue between the different scales: global emergencies and local situations, the rights of the living, and of those who still have to arrive on our land.

I close by telling you where I'm talking from, that is, by explaining to you that one and a half kilometers from my house, there is one of the largest plants for the treatment of the wet part of the waste of the whole Po Valley. I assure you that it is not pleasant, especially in the summer. But managing waste is another major environmental challenge. It is not convenient for me to have this implant within reach of my nose. I have to tell you, I'd rather have a wind farm. Everyone, however, can only do his part.

I am available to any deepening, gladly coming in person to Vicchio and Dicomano, or even better to Villore and Corella, maybe guest of some of the inhabitants. As a geographer, I love the territory.

Thank you, and have a good work.


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Andrea Pase's professional page

The planned wind plant on the Appennini Mountains

Saturday, October 8, 2016

An AWEsome energy source: where do we stand with airborne wind energy?



Kite surfing on the IJsselmeer lake, in the Netherlands; a picture that I took a couple of weeks ago. These are not kites for airborne wind energy (AWE) but, for some reason, Holland is the country where the idea of energy kites seems to be most popular; in particular because of the work of the late Wubbo Ockels (1946 – 2014), pioneer of wind energy. The technology is promising, but there is a long way to go before it will become a commercial reality.


I have been following the development of airborne wind energy (AWE) for more than 10 years and I keep following it. This summer, I visited the campus of the Technical University of Delft, in Holland, where I met the people of "Enevate", the university spinoff dedicated to kite power, a field in which the university of Delft has been active for a long time. I found a dedicated group of young people, enthusiastic and competent, working hard at developing the concept. Recently, they scored a remarkable success obtaining the support of the EU Horizon program for the project "REACH" dedicated to airborne wind energy.

But where do we stand, today, with this technology? The idea of AWE is both simple and promising. The current generation of wind turbines work relatively well, but it is also a technology that's rapidly reaching its technical limits, given by the weight and the cost of the tower that supports the rotor. So, why can't we just get rid of the tower and have the rotor fly in the air? Think how much money we could save!

So, we fly a kite. The kite catches the wind energy and transmits it down to earth either by onboard generators or by pulling cables that act on a ground-based generator. This technology is called in various ways, but the term "Airborne Wind Energy" seems to have become the most common one. The development of this field has been going on for at least ten years. Some years ago, I wrote an early (rather overoptimistic) paper on the concept on "The Oil Drum." Recently, Euan Mearns wrote an also rather optimistic, but reasonably well-balanced, post on the subject. A much more negative review of AWE appeared in "GreenTech" as well as in another article published by some researchers of the Max Planck institute. You can find a recent review of the various technical implementations of the idea in a paper written by Cherubini et al.

So, where do we stand, today? There is no doubt that the concept of AWE is alive and well and that research on it is being performed in several laboratories all over the world with the support of governments and companies. The problem with all promising technologies is always the same: the promise must be kept. The technology must work and we can say that it does only if we have something that works and can be tested for a relatively long time. We don't seem to have arrived at that stage yet with AWE, but it is normal: research and development is a slow and expensive process; not something for mad scientists building spaceships in their basement. In my opinion, some early dreams of tapping the wind at very high altitudes, even getting energy from the jet stream, were much too ambitious. But that doesn't mean that the technology can't work. What can be done at the present stage is to work on small systems that go no higher than about 1000 m and that are manageable and relatively simple. Even for these systems, it takes time; there are still plenty of problems to solve. As somebody said, research is "1% inspiration and 99% perspiration". With AWE, there is still a lot of perspiration to do.

One problem when dealing with energy producing technologies is the "miracle trap." We all know that we have an enormous problem with fossil fuels in terms of both depletion and pollution. We need to replace them with renewable energy as fast as possible and most of us understand that it won't be easy (although not impossible). So, some people are actively searching for miracles and some found them in outright scams about cold fusion or mysterious unknown nuclear processes. Others use their faith on the miracles that will come as an excuse for doing nothing. And, finally, others have fallen into the opposite trap and tend to consider as a scam anything and everything that hasn't yet fulfilled its initial promises. Some people seem to have developed this attitude even toward AWE. But AWE is neither a scam nor a miracle. It is a technology being developed that needs to be studied and evaluated.

AWE may well fulfill an important role in energy production in the future but, for the time being, we need to deploy what works, and keep working on what's promising. And if we keep a cool head, we can make it even with what we have. We don't need miracles; we need to work for our future. And we need to start right now.



  

Friday, January 6, 2012

Old ladies of the Appennini mountains


Mrs. Fidalma, resident in the village "Ca' di Franca" (Arezzo) in the Appennini Mountains, Italy. She has nicely agreed to have her picture taken and shown here.  Photo taken by the author on Jan 5, 2012.


Some areas of Italy have maintained the lifestyle of a hundred years ago; especially in the mountains. In small villages, people still rely on wood for heating their houses and for cooking, as their ancestors have been doing for thousands of years, before fossil fuels appeared. Old ladies in these places still dress the way they were dressing 50 years ago, as Mrs Fidalma does in the photo above. Below, another picture, this time showing Mrs. Iliana of the village of Trecciano, in the same area of the Appennini Mountains. It gives a good idea of the nice atmosphere of a house all made in stone, heated by a fireplace.



Maybe it is a world that will disappear in a few more years, or maybe it is a world that is going to return with the gradual disappearance of fossil fuels. But, what was I doing in the mountains, in a cold day of January? Well, there are some interesting windy places, there.....

Who

Ugo Bardi is a member of the Club of Rome, faculty member of the University of Florence, and the author of "Extracted" (Chelsea Green 2014), "The Seneca Effect" (Springer 2017), and Before the Collapse (Springer 2019)