Why Germany and not Japan is the leader in renewable energy

By Jessica Jewell, IIASA Energy Program

Why have Germany and Japan, two large, and in many respects similar developed democracies pursued different energy options? A recently published study examines why Germany has become the world’s leader in renewable energy while phasing out its nuclear power and Japan has deployed only a trivial amount of renewables while constructing a record number of nuclear reactors.

The widespread story is that Germany rejected nuclear power in a politically bold move after Fukushima and instead pursued ‘Energiewende’ prioritizing wind and solar energy to combat climate change. Leading scholars such as Amory Lovins described Japanese policymakers as manipulated by the nuclear lobby, clinging to their old ways, and unwilling to properly support renewable energy. The lesson to other countries is that public anti-nuclear sentiments and a capable democratic government is what it takes to turn to decentralized renewable energy.

This research shows that these stories are myths. As I and my coauthor wrote in a letter to the editor in Nature last year, Japan had ambitious renewable targets already before Fukushima and there is no evidence that these have been affected by its nuclear plans. The same holds for Germany: its targets for renewable energy were not affected by the change in its nuclear strategy following Fukushima’s disaster in 2011.

© nixki | Shutterstock

In fact, the differences between Germany and Japan started not in 2011 after Fukushima, but some 20 years earlier in the early 1990s when Japan’s electricity consumption was rapidly growing and it desperately needed to expand electricity generation to feed demand that could not be matched with very scarce domestic fossil fuels. Furthermore, Japan was developing ‘energy angst’ related not only to its high dependence on Middle Eastern oil and gas but also to potential competition with China’s with its rising appetite for energy. At the same time, Germany’s electricity consumption stagnated in the 1990s and its energy security improved following the end of the Cold War. Germany was also one of the world’s largest coal producers and could in principle supply all its domestic electricity from coal. As a result, in the 1990s, Japan was forced to build nuclear power plants, but Germany could easily do without them.

There was another important development in the early 1990s: wind power technology diffused to Germany from neighboring Denmark. This was triggered by an electricity feed-in-law of 1990s, which obliged German electric utilities to buy electricity from small producers at close-to-retail prices. The law, which aimed to benefit a small number of micro-hydro plant owners, unexpectedly led to almost a 100-fold rise in wind installations in Germany. Although still insignificant in terms of electricity, this development created a large and vocal lobby of owners and manufacturers of wind turbines. In the early 2000s, the wind sector provided less than one-tenth of nuclear electricity but had more jobs than in the nuclear sector. In contrast, Japan’s similar policies of buying wind energy from decentralized producers did not result in any considerable growth of wind power, because the Danish technologies prevalent in the early 1990s could not be as easily diffused to Japan.

By the turn of the century, the electricity sectors in Germany and Japan still looked largely similar, but the political dynamics could not be more different. In Germany, a huge politically-powerful coal sector was represented by Socio-Democratic Party and the so-called ‘red-green’ coalition was formed with the Green party, who represented the rapidly growing wind power sector. The stagnating nuclear industry, however, had not seen new domestic orders or construction for 15 years and large industrial players like Siemens had begun to diversify away from it. All this was in the context of a positive energy security outlook and declining electricity prices. In contrast, in Japan, the nuclear sector had vigorously grown over the last decade and was becoming globally dominant by acquiring significant manufacturing capacities. Nuclear power was the only plausible response to the energy angst and it lacked any credible political opponents: the domestic coal sector in Japan virtually did not exist (Germany had around 70,000 coal mining jobs, Japan – about 1,000) and wind had never taken off.

© Pla2na | Shutterstock

The results of these very different political dynamics were predictably different: the red-green coalition in Germany legislated nuclear phase-out in 2002 and unprecedented financial support for renewables in 2000, while retaining coal subsidies and triggering construction of new coal power plants. Japan continued to support solar energy in which it had been the global leader since the 1970s but it also adopted a plan for constructing many more nuclear reactors designed to substitute imported fuels. Fukushima, rather than highlighting differences actually made the energy trajectories of two countries more similar as both countries began to struggle to replace their aging nuclear capacities with new renewables.

How does this story relate to wider questions such as: why are some countries more successful in deploying renewables than others? The answer is not in ‘stronger political will’ and in the strength of climate change concerns, but in economy, geography, and the structure of energy systems. Political wins for renewables and the climate can also be the result of dubious political compromises such as the alliance with the coal lobby in Germany, which led to the rapid growth of renewables and demise of nuclear power. It may be particularly difficult for countries with fossil fuel resources to implement renewable energy policies if they lead to the contraction of domestic coal, gas or oil industries.

Reference: Cherp A, Vinichenko V, Jewell J, Suzuki M, & Antal M (2016). Comparing electricity transitions: A historical analysis of nuclear, wind and solar power in Germany and Japan. Energy Policy 101: 612-628.

Acknowledgements

The study was supported by the CD-LINKS project and the Central European University’s Intellectual Theme’s Initiative.

This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

 

Making the most of the IIASA Young Scientists Summer Program

By Muenire Koeseoglu, Young Scientists Summer Program alumnus.

In the summer of 2016 I traveled to Austria to take part in the IIASA Young Scientists Summer Program (YSSP). Being part of this intense experience, not only in terms of scientific research but also in a social and networking sense, was very rewarding. I learnt a lot, travelled a bit, and made many new international friends and valuable connections for life. However, if you are thinking about applying to the YSSP, some prior preparation and an open mind are essential to absorb what the environment offers.

My YSSP project examined water pollution issues in Scotland, looking into a trading framework that would help address diffuse pollution. My advice to any potential YSSPer working on applied topics like myself is to identify their research question in broad terms with room for possible change. Understand the policy landscape around the issue to establish the policy relevance, and possible partners in the field who might be willing collaborate as a part of their preparation before arriving to IIASA. Establishing connections might be time-consuming, and people might not necessarily be interested in taking the time to help a postgrad student or in sharing information or data which might be confidential, yet even a few successful attempts will be useful in terms of getting site-specific information, data, and feedback. It will also save you time during the YSSP and potentially help clarify the real-life problems beyond the literature or directives. For instance, my initial proposal for the YSSP was to design a trading scheme based on water allowances among different water users at catchment level. However, after relevant consultations, I realized that designing a scheme that would enable trading permits to pollute rather to take water would be more applicable to Britain and especially Scotland, where diffuse pollution impacts affects many more catchments than do water shortages.

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2016 YSSP participants. © IIASA

From my perspective there were many things that made my YSSP a special experience but the most important factor has been the people, my YSSP peers, the IIASA Advanced Systems Analysis Program (ASA) where I was based, and especially my supervisors. As a PhD student in the field of applied land economics, working with mathematicians (as my supervisors and most of my ASA colleagues were), was a very formative experience, as the world of mathematicians is very different to my career so far. Crucially, my supervisors taught me to deal with uncertainty not only in the data but also in the research structure and short-notice changes, and to realise the wider applications and possible extensions of the project rather than being trapped in details. After all, you can return to the details once you have made progress in your overall aims. Moreover, mathematicians are fast thinkers with a “can-do” attitude: a perfect combination for finding a solution in mathematical terms to the next practical problem you face.

I believe I have benefited a lot from this trans-disciplinary cooperation and look forward to working with people from different disciplines again, to learn from their perspectives and expertise.

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

The land of the midnight sun: Science to policy in the Arctic Council

By Anneke Brand, IIASA science communication intern 2016.

For Malgorzata (Gosia) Smieszek it’s all about making sound decisions, and she is not afraid of using unconventional routes in doing so. She applies this rule to various aspects of her fast-paced life. Whether it is taking the right steps in trail running races, skiing or relocating to the Arctic Circle to do a PhD.

Gosia Smieszek © J. Westerlund, Arctic Centre

Gosia Smieszek © J. Westerlund, Arctic Centre

Gosia’s passion for the Arctic began to evolve during a conversation with a professor at a time when she was contemplating the idea of returning to academia. “I remember, when he said the word Arctic, I thought: yes, that’s what I want to do. True, before I was interested in energy and environmental issues, but the Arctic was certainly not on my radar. So I went to the first bookstore I found, asked for anything about the North and the lady, after giving me a very confused look, said she might have some photo books. So I left with one and things developed from there.”

In 2013 Gosia joined the Arctic Centre of the University of Lapland in Rovaniemi, Finland. Living there is not always easy, but hey, if you get to see the Northern Lights, reindeers and Santa Claus on a regular basis, it might be worth enduring long times of darkness in winter and endless sunshine in summer. With temperatures averaging −30°C, Rovaniemi is the perfect playground for Gosia.

Running is one of Gosia’s favorite sports. She has competed in a few marathons, but her biggest race to date is the Butcher’s Run, an ultra trail of 83km over the Bieszczady mountains in Poland. Here she is running in the Tatra mountains. © Gosia Smieszek

Gosia grew up in Gliwice, a town in southern Poland, before moving to Kraków where she completed her undergraduate degree in international relations and political science. This was just before Poland’s accession to the EU, so it was the perfect time to pursue studies in this field.

She continued her studies in various locations including Belgium, France, Poland, and Austria. Before continuing her education and later working at the College of Europe, she also gained working experience as a translator at a large printing house in her home town in Poland.

For her PhD Gosia focuses on the interactions between scientists and policymakers, with the aim of enhancing evidence-based decision making in the Arctic Council. Scientific research on the Arctic has been conducted for decades, but “when it comes to translating science into practice it is still a huge challenge―on all possible levels,” she says.

“Scientists and policymakers have their own, very different, universes—with their own stories, goals, timelines, working methods and standards. It is better than in the past, but still extremely difficult to make these two universes meet.”

Gosia with fellow YSSPers, Dina, Stephanie and Chibulu during a visit to Hallstadt. © C. Luo

Gosia with fellow YSSPers, Dina, Stephanie and Chibulu during a visit to Hallstadt. © Chibulu Luo

As part of the Arctic Futures Initiative at IIASA, Gosia investigates and maps the structural organization of the Arctic Council and aims to determine the effectiveness of interactions between scientists and policymakers, as well as ways to improve the flow of knowledge and information between them.

Because of the nature of her work, Gosia spends almost half her time away from home, but you will never find her traveling without running shoes, swimming gear, and something to read. Diving, one of her greatest passions, has taken her to amazing places like Cuba and the Maldives, where meeting a whale shark face-to-face topped her list of underwater experiences.

Gosia swimming with a whale shark. ©Eiko Gramlich

Gosia swimming with a whale shark. © Eiko Gramlich

Gosia is truly hoping to make a difference with her research on science-policy interface. She says: “To me, trying to bridge science and policy is a truly fascinating endeavor. Exploring these two worlds, seeking to understand them and learning their ‘languages’ to enable better communication between them is what drives me in my research. So hopefully we can learn from past mistakes and make things better—this time.”

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

 

Modeling Vienna’s traffic: air pollution and health

By Anneke Brand, IIASA science communication intern 2016.

Accidents, lane closures, and congestion all affect the flow of road traffic and harmful emissions from vehicles. Live traffic data allow congestion to be detected more accurately and provide a more precise overview of vehicle emissions at different times and places. In his project for the Young Scientists Summer Program (YSSP), Fabian Heidegger investigates how road traffic affects air pollution in cities, using Vienna and surrounding areas as a case study.

Air pollution is a major problem in Europe and globally. Health impacts of air pollution include a range of respiratory and cardiovascular diseases. “10-20% of Europe’s urban population is exposed to excessive levels of nitrogen dioxide (NO2), along with several other air pollutants. NO2 pollution is highest along busy roads. Technical measures have so far often been circumvented, so cities are looking for other measures to reduce the pollution load. Traffic management has therefore gained interest as a way to reduce air pollution,” says Jens Borken-Kleefeld, Heidegger’s study leader at IIASA.

To calculate the amount of air pollution that cars and other vehicles release into the air, researchers use models that apply various sets of data: traffic networks, where and how far people drive, and emission factors of different vehicle categories. Input data for the model may include how many people live in a certain area, how many of them use cars, where they normally drive, and how many grams of pollutants (such as nitric oxide and NO2 gases) their type of cars emit per kilometer.

© Radub85 | Dreamstime.com

Inner city Vienna. © Radub85 | Dreamstime.com

Most of these models rely on average daily traffic data. For Heidegger’s YSSP project, which is related to his PhD work at the University of Natural Resources and Life Sciences  in Vienna, he is incorporating real-time data, measured every five minutes, into a traffic simulation model developed by Intelligent Transport Systems Vienna Region. A set of detectors in and around the city record the number and speed of vehicles. In addition, location data from the taxi fleet is incorporated into the traffic simulation. Heidegger can therefore immediately identify adverse traffic conditions like stop-and-go traffic, which has a high impact on emissions. This allows for a more accurate calculation and can help design traffic interventions for improving both traffic flow and air quality.

“In the case of a road closure, local emissions will obviously be lower at the specific road but total emissions for the area could be higher than before when drivers use alternative, longer routes or end up in stop-and-go traffic,” says Heidegger.

In order to understand how these diversions and the displacement of pollutants can affect overall emissions, Heidegger will first determine the emissions per street section, and second, what the effects are of diversions from day-to-day traffic patterns. Together with researchers from the Air Quality and Greenhouse Gases Program at IIASA, Heidegger plans to assess the impact of different intervention scenarios, for example an environmental zone in the city, where only modern cars will be allowed to enter. In a second scenario he will look at the effect of people commuting to Vienna, and a third scenario will explore the consequences of expanding pedestrian zones. The researchers hope that this study will better their understanding of the potential of traffic management to reduce air pollution.

 

More information

Air Pollution Policy Review 2011-2013

GAINS Model

AIR Program

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

 

Interview: Plants and their fungi to slow down climate change

César Terrer, participant in the IIASA 2016 Young Scientists Summer Program, and PhD student at Imperial College London, recently made a groundbreaking contribution to the way scientists think about climate change and the CO2 fertilization effect. In this interview he discusses his research, his first publication in Science, and his summer project at IIASA.

Conducted and edited by Anneke Brand, IIASA science communication intern 2016.

César Terrer ©Vilma Sandström

César Terrer ©Vilma Sandström

How did your scientific career evolve into climate change and ecosystem ecology?
I studied environmental science in Spain and then I went to Australia, where I started working on free-air CO2 enrichment, or FACE experiments. These are very fancy experiments where you fumigate a forest with CO2 to see if the trees grow faster. In 2014 I moved to London for my PhD project. There, instead of focusing on one single FACE experiment, I collected data from all of them. This allowed me to make general conclusions on a global scale rather than a single forest.

You recently published a paper in Science magazine. Could you summarize the main findings?
We found that we can predict how much CO2 plants transfer into growth through the CO2 fertilization effect, based on two variables—nitrogen availability and the type of mycorrhizal, or fungal, association that the plants have. The impact of the type of mycorrhizae has never been tested on a global scale—and we found that it is huge. I think it’s fascinating that such tiny organisms play such a big role at a global scale on something as important as the terrestrial capacity of CO2 uptake.

How did you come up with the idea? One random day in the shower?
Long story short, researchers used to think that plants will grow faster, and take up a lot of the CO2 we emit. They assumed this in most of their models as well. But plants need other elements to grow besides CO2. In particular, they need nitrogen. So scientists started to question whether the modeled predictions overestimated the CO2 fertilization effect, because the models did not consider nitrogen limitation. To find out, I analyzed all the FACE experiments and indeed I saw that in general plants were not able to grow faster under elevated CO2 and nitrogen limitation. However, in some cases plants were able to take advantage of elevated CO2 even under nitrogen limitation. I grouped together the experiments where plants could grow under nitrogen limitation and after a lot of reading I saw what they had in common: the type of fungi! It turned out that one type of mycorrhizae is really good at transferring large quantities of nitrogen to the plant and the other type is not.

How did that feel?
Awesome! When I saw the graph, I knew: this is going to be important. Of course, after this, my coauthors helped me to polish the story. Without them, the conclusions would not be as robust and clear.

So how does this process work? Where do the fungi get the nitrogen from?
Particular soils might have a lot of nitrogen, but the amount available for plants to absorb might be low. Also, plants have to compete with non-fungal microorganisms for nitrogen. So if there is not much there, the microorganisms take it all. It’s called immobilization. Instead of mineralizing nitrogen, they immobilize it so that plants cannot take it up, at least not in the short term. Some types of fungi are much more efficient in accessing nitrogen, and associated with roots they allow plants to overcome limitations.

Nitrogen mobilization abilities of different types of fungi. Growth of plants associated with fungi not beneficial for nitrogen uptake (illustrated as grass roots on the left) could be limited by low nitrogen availability in soil. Other plants have the advantage of increased nitrogen uptake due to their beneficial association with certain types of fungi (illustrated as yellow mushrooms connected to the roots of the tree on the right). ©Victor O. Leshyk.

Nitrogen mobilization abilities of different types of fungi. Growth of plants associated with fungi not beneficial for nitrogen uptake (illustrated as grass roots on the left) could be limited by low nitrogen availability in soil. Other plants have the advantage of increased nitrogen uptake due to their beneficial association with certain types of fungi (illustrated as yellow mushrooms connected to the roots of the tree on the right). ©Victor O. Leshyk.

What is the impact of your findings?
Plants currently take up 25-30% of the CO2 we emit, but the question is whether they will be able to continue to do so in the long term. Our findings bring good and bad news. On the one hand, the CO2 fertilization effect will not be limited entirely by nitrogen, because some of the plants will be able to overcome nitrogen limitation through their root fungi. But on the other hand, some plant species will not be able to overcome nitrogen limitation.

There was a big debate about this. One group of scientists believed that plants will continue to take up CO2 and the other group said that plants will be limited by nitrogen availability. These were two very contrasting hypotheses. We discovered that neither of the hypotheses was completely right, but both were partly true, depending on the type of fungi. Our results could bring closure to this debate. We can now make more accurate predictions about global warming.

What will you do at IIASA and how will you link it to your PhD?
I want to upscale and quantify how much carbon plants will take up in the future. If we are to predict the capacity of plants to absorb CO2, we need to quantify mycorrhizal distribution and nitrogen availability on a global scale. We are updating mycorrhizal distribution maps according to distribution of plant species. We know for instance that pines are associated with ectomycorrhizal fungi and always will be. To quantify nitrogen availability we use maps of different soil parameters that are available on a rough global scale.

© Adam Edwards | Dreamstime.com

© Adam Edwards | Dreamstime.com

About César Terrer
Prior to his PhD, Terrer studied at the University of Murcia in Spain and the University of Western Sydney in Australia.

Currently he is a member of the Department of Life Sciences at Imperial College London, UK. For this study he collaborated with researchers from the University of Antwerp, Northern Arizona University, Indiana University and Macquarie University.

In the IIASA Young Scientists Summer Program, Terrer works together with Oskar Franklin from the Ecosystem Services and Management Program and Christina Kaiser from the Evolution and Ecology Program.

Further reading

 

Note: This article gives the views of the interviewee, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.