Learning Curves for Renewables and Other Technologies

Total Page:16

File Type:pdf, Size:1020Kb

Learning Curves for Renewables and Other Technologies Die approbierte Originalversion dieser Diplom-/ Masterarbeit ist in der Hauptbibliothek der Tech- nischen Universität Wien aufgestellt und zugänglich. http://www.ub.tuwien.ac.at Learning curves for renewables and other technologies: The approved original version of this diploma or master thesis is available at the main library of the Vienna University of Technology. an international analysis http://www.ub.tuwien.ac.at/eng MASTER THESIS For obtaining the academic degree Diplom-Ingenieur (Dipl.-Ing.) Vienna University of Technology Institute of Energy System and Electrical Drives Energy Economics Group Supervisor : Univ.Prof. Dipl.Ing. Dr. Reinhard Haas Assistant: Dipl.-Ing. Dr. Gustav Resch By Kenan Sütcü Cortigasse 12/26 1220 Vienna Vienna, November 2018 1 Table of Contents 1 Introduction ................................................................................................................................... 5 1.1 Motive .................................................................................................................................... 5 1.2 Objective ................................................................................................................................ 6 1.3 Method ................................................................................................................................... 6 1.4 The Experience Curve Formula ............................................................................................... 7 1.5 Perils of the Experience Curve ................................................................................................ 8 2 History of Technological Learning ................................................................................................ 12 3 A Survey on Learning Curves ........................................................................................................ 17 3.1 Photovoltaic solar power ...................................................................................................... 17 3.1.1 Photovoltaic Technology .............................................................................................. 17 3.1.2 FIT System in German PV market ................................................................................. 27 3.1.3 PV Solar Market of Japan .............................................................................................. 35 3.1.4 PV Solar Cost Development 1975 – 2001 ( by Nemet [2006] ) ...................................... 38 3.2 Onshore Wind Energy ........................................................................................................... 46 3.2.1 Technology of Wind Energy .......................................................................................... 46 3.2.2 Denmark’s Wind Market ............................................................................................... 53 3.2.3 Cost Development of Wind Power (by Neij [1981 – 2000]) .......................................... 56 3.2.4 Germany’s Wind Power Market ................................................................................... 58 3.2.5 Cost Development of German Wind Power (by Neij [1978 – 2000]) ............................ 63 3.3 Biofuel .................................................................................................................................. 65 3.3.1 Ethanol Energy Production ........................................................................................... 65 3.3.2 Global scenario and statistics ....................................................................................... 67 3.3.3 Ethanol Production in Brazil (1980 – 2002)................................................................... 69 3.4 Nuclear Energy ..................................................................................................................... 72 3.4.1 Nuclear Technology ...................................................................................................... 72 3.4.2 Global scenario and statistics ....................................................................................... 75 3.4.3 France’s PWR program ................................................................................................. 77 3.4.4 Cost of the French nuclear program ............................................................................. 78 3.5 Combined Cycle Gas Turbine ................................................................................................ 83 3.5.1 Global scenario and statistics ....................................................................................... 84 3.5.2 Experience Curve Analysis of CCGT ............................................................................... 86 4 Data Series ................................................................................................................................... 90 4.1 PV Solar ................................................................................................................................ 90 4.1.1 California ...................................................................................................................... 90 4.1.2 Germany ....................................................................................................................... 93 2 4.1.3 Italy ............................................................................................................................... 94 4.1.4 Japan............................................................................................................................. 97 4.2 Onshore Wind Power ........................................................................................................... 98 4.2.1 Global ........................................................................................................................... 98 4.2.2 Denmark ..................................................................................................................... 100 4.2.3 Germany ..................................................................................................................... 101 4.2.4 U.S. ............................................................................................................................. 103 4.2.5 Spain ........................................................................................................................... 105 5 Conclusion .................................................................................................................................. 108 5.1 Historical comparison of learning curves of power production technologies..................... 108 5.2 Behavior of Learning Effects over Time .............................................................................. 109 5.3 National and international learning effects of Solar PV and Onshore Wind Energy ........... 110 3 Abstract As the avoidance of CO2 emissions in energy production is gaining more and more attention in our time, the focus is on renewable energies is more significant. However, in the past, these enegy supply technologies have proven not to be cost favorable. It is necessary to investigate how and by what the investment costs of the respective energy sources have changed over time. Therefore, the investment costs of renewable and other technologies were analyzed and compared. For this purpose, the learning curve was used, which allows a qualitative description of the investment costs over time. It has been found that photovoltaic has a high learning rate compared to the other technologies used for energy production. The learning rate for wind energy approaches zero. There are also technologies such as nuclear energy, for example, which even have "negative" learning. To get more meaningful analysis, more data is needed. On the basis of the learning curves at least it can be seen that the investment in renewable energy sources is worthwhile. 4 Kurzfasssung Da die Vermeidung von CO2 – Emissionen in der Energieerzeugung in unserer Zeit immer immer mehr an Beachtung gewinnt, wird der Fokus auf erneuerbare Energien gelegt. Diese haben sich aber in der Vergangheit als nicht Kosten günstig bewährt. Es ist zu untersuchen, wie und vor allem wodurch sich die Investitionskosten der jeweiligen Energieträger mit der Zeit geändert haben. Deshalb wurden die Investitionskosten von erneuerbaren und anderen Technologien verglichen. Dazu wurde die Lernkurve zur Hilfe genommen, die eine qualitative Beschreibung der Investitionskosten über die Zeit erlaubt. Es hat sich herausgestellt, dass Photovoltaik eine hohe Lernrate hat im Vergleich zu den anderen Technlogien, die zur Energiegewinnung genutzt werden. Die Lernrate für Windenergie nähert sich derm Wert 0. Es gibt auch Technologien wie Atomenergie zum Beispiel, die sogar ein „negatives“ Lernen aufweisen. Um wirklich aussagekräftigere Analysen zu bekommen, sind mehr Daten notwendig. Anhand der Lernkurven ist zumindest ersichtlich, dass sich die Investition in erneuerbare Energieträgern lohnt. 5 1 Introduction 1.1 Motive To limit growing global energy demand, reduce the emission of greenhouse gases (GHG) and achieve other environmental targets, technological development at low cost is essential. Therefore large number of technologies to supply renewable energy and to save energy are needed. Thus these technologies are at the core of most energy and climate policies worldwide. Due to scenario analyses of world’s future energy system and climate change mitigation scenario,
Recommended publications
  • “Hybrid Lattice-Tubular Steel Wind Towers: Conceptual Design of Tower”
    “Hybrid Lattice-Tubular steel wind towers: Conceptual design of tower” Dissertação apresentada para a obtenção do grau de Mestre em Engenharia Civil na Especialidade de Mecânica Estrutural Autor João Rafael Branquinho Maximino Orientador Carlos Alberto da Silva Rebelo Milan Veljkovic Esta dissertação é da exclusiva responsabilidade do seu autor, não tendo sofrido correcções após a defesa em provas públicas. O Departamento de Engenharia Civil da FCTUC declina qualquer responsabilidade pelo uso da informação apresentada Coimbra, Julho, 2015 Hybrid Lattice-Tubular steel wind towers AGRADECIMENTOS Agradeço em primeiro lugar aos meus pais, por todo o apoio demonstrado ao longo dos anos, e pelos ensinamentos fundamentais que me levaram a este momento. Ao meu irmão, que sempre esteve ao meu lado, obrigado pela motivação em todos os momentos. A toda a minha família pela união, apoio, coragem e vontade que sempre me transmitiram. À minha namorada, que desde o início tornou esta experiência melhor para mim, e me ajudou a crescer como pessoa. Aos meus colegas que me acompanharam e apoiaram neste percurso, a todos os professores que me transmitiram tudo o que aprendi até agora, o meu muito obrigado. Por fim gostaria de agradecer à Universidade Técnica de Lulea por me ter acolhido na realização desta tese de mestrado, e mostrar a minha gratidão ao Professor Doutor Carlos Alberto da Silva Rebelo e ao Professor Doutor Milan Veljkovic pela orientação e disponibilidade dispensada. i Hybrid Lattice-Tubular steel wind towers ABSTRACT The utilization of the wind is not a new technology, but an evolution of old processes and techniques. Like nowadays, wind power had a huge role in the past, with different utilizations and proposes, although the main goal was always to help in the Human’s heavy work.
    [Show full text]
  • È Il Momento Dell'hi-Tech
    € 2,50 Giugno 2016 Quarta edizione INTERNATIONAL CINAITALIA È IL MOMENTO DELL’HI-TECH MF International, gli speciali di MF-Milano Finanza – Supplemento a Spedizione inart. A.P. 1 c. 1 L. 46/04, DCB Milano E-COMMERCE Chi vende di più online NUOVE FRONTIERE Le città strategiche per la crescita GRANDI LAVORI 30 progetti in cui inserirsi POWER 100 I cinesi e gli italiani che contano Cover Cina ok.indd 1 15/06/16 12:48 Giugno 2016 I CONTENUTI INTERNATIONAL CINAITALIA COVER STORY OUTLOOK Hi Tech L’invasione dei robot Power 100 Pil, yuan e Borsa, la Xi- 56 di Mariangela Pira I nomi dei personaggi cinesi e economy alla prova mercato 6 italiani che contano nel business 36 Valuta tendenzialmente debole sul E-commerce e nelle relazioni bilaterali per fare dollaro ed euro, qualche possibile È l’ora dell’m-shopping affari con il Paese di mezzo apertura sulle borse grazie ai fondi 58 di Franco Canevesio pensione: ecco come gli analisti guardano a Oriente Fashion TESTIMONIAL di Marcello Conti Sul web, purché sia social 62 di Milena Bello Xia Hua L’Europa? Investire DOSSIER/NUOVE FRONTIERE Ambiente 16 conviene di Tecno-green, italiani in prima fila Pier Paolo Albrici Inner Mongolia 64 di Marco Barbieri Latte, carne e cachemere, le Vito Xu 44 chance della Mongolia Food&beverage Mister Outlet va di Francesco Colamartino L’acqua? È uno status symbol al raddoppio di 17 di Franco Canevesio Pier Paolo Albrici 68 Federico Bazzoni Xia Hua Mobili Arredo Insider Banking Sulla scia del turbo-design 18 di Mariangela Pira 70 di Martina Mazzotti Gianfranco Lanci Sanità
    [Show full text]
  • Technical, Environmental and Social Requirements of the Future Wind Turbines and Lifetime Extension WP1, Task 1.1
    Ref. Ares(2020)3411163 - 30/06/2020 Deliverable 1.1: Technical, environmental and social requirements of the future wind turbines and lifetime extension WP1, Task 1.1 Date of document 30/06/2020 (M 6) Deliverable Version: D1.1, V1.0 Dissemination Level: PU1 Mireia Olave, Iker Urresti, Raquel Hidalgo, Haritz Zabala, Author(s): Mikel Neve (IKERLAN) Wai Chung Lam, Sofie De Regel, Veronique Van Hoof, Karolien Peeters, Katrien Boonen, Carolin Spirinckx (VITO) Mikko Järvinen, Henna Haka (MOVENTAS) Contributor(s): Aitor Zurutuza, Arkaitz Lopez (LAULAGUN) Marcos Suarez, Jone Irigoyen (Basque Energy Cluster) Helena Ronkainen (VTT) 1 PU = Public PP = Restricted to other programme participants (including the Commission Services) RE = Restricted to a group specified by the consortium (including the Commission Services) CO = Confidential, only for members of the consortium (including the Commission Services) This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 851245. 1 D1.1 – Technical, environmental and social requirements of the future wind turbines and lifetime extension This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 851245. 2 D1.1 – Technical, environmental and social requirements of the future wind turbines and lifetime extension Project Acronym INNTERESTING Innovative Future-Proof Testing Methods for Reliable Critical Project Title Components in Wind Turbines Project Coordinator Mireia Olave (IKERLAN) [email protected] Project Duration 01/01/2020 – 01/01/2022 (36 Months) Deliverable No. D1.1 Technical, environmental and social requirements of the future wind turbines and lifetime extension Diss.
    [Show full text]
  • THE ASIA-PACIFIC 02 | Renewable Energy in the Asia-Pacific CONTENTS
    Edition 4 | 2017 DLA Piper RENEWABLE ENERGY IN THE ASIA-PACIFIC 02 | Renewable energy in the Asia-Pacific CONTENTS Introduction ...................................................................................04 Australia ..........................................................................................08 People’s Republic of China ..........................................................17 Hong Kong SAR ............................................................................25 India ..................................................................................................31 Indonesia .........................................................................................39 Japan .................................................................................................47 Malaysia ...........................................................................................53 The Maldives ..................................................................................59 Mongolia ..........................................................................................65 Myanmar .........................................................................................72 New Zealand..................................................................................77 Pakistan ...........................................................................................84 Papua New Guinea .......................................................................90 The Philippines ...............................................................................96
    [Show full text]
  • Letter from Navarre Minister Aldasoro
    NAVARRE: RENEWABLE ENERGIES Pamplona, 21 April 2009 Navarre is a small region of Spain with a population of 620,000 in an area the tenth of the state of Pennsylvania. It is well-known throughout the world for its development in renewable energies. The prestigious magazine, Nature, published an article about Navarre in June of 2007 entitled: “Energy-Go-Round: How did a little Spanish province become one of the world’s wind-energy giants?” After 20 years of development, 65% of the electrical energy we consume in Navarre originates from renewable energies. At this moment there are 993 MW of wind and almost 100 MW of photovoltaic power, among others, installed in Navarre. An article was published recently which has placed a doubt in renewable energy’s ability to create employment; it states that it destroys employment, and therefore, is a factor in the social impoverishment of a country. As I will demonstrate, this statement is completely untrue. In Navarre, the development of renewable energies, and above all wind energy, has created wealth, employment and technological development, and I can assert that this can be achieved in any other region or country. Our region’s GDP is among the three highest in Spain, participation by the industrial sector is 12 points higher than the entire country’s, and for many years Navarre has had unemployment rates inferior to Spain’s. Before the beginning of the current world crisis our region enjoyed full employment. Now, after the strong economic and employment crisis that affects Spain in particular, Navarre maintains itself as the Spanish region with the least unemployment.
    [Show full text]
  • By 2030, Wind Power in Spain Will Supply More Than 30% of Electricity with an Installed Capacity of 40 GW
    PRESS RELEASE PRESS RELEASE Spanish wind power industry´s proposal for an energy transition By 2030, wind power in Spain will supply more than 30% of electricity with an installed capacity of 40 GW Madrid, 16th of November 2017.- The Spanish Wind Energy Association (AEE) has developed the analysis "The necessary elements for an energy transition. Proposals for the electricity sector". This document has recently been sent to the Spanish Committee of Experts for Energy Transition. With it, AEE aims at making specific and realistic proposals on the contribution of wind power for 2020, 2030 and 2050. Energy transition brings with it the need for long term planning and many challenges for its achievement. AEE has taken as reference the European Commission´s scenario proposed by the PRIMES model in the horizon of 2030. This model states a very moderate growth in the electricity demand. In its own scenario, AEE has established more ambitious electrification and decarbonisation objectives in order to meet the Paris Agreement goal of achieving at least an 80-95% reduction of greenhouse gas emissions by 2050. Electrification must be the way to reduce emissions, thanks to competitive renewable technologies such as wind power. The electricity sector must move towards scenarios where new electricity demand is covered without jeopardizing emission reduction objectives. As a result of the analysis, the Spanish wind industry, represented by AEE, believes that wind power installed capacity will reach 28,000 MW by 2020 (taking into account the 2016 and 2017 tenders and the Canary Islands wind power quota). This means that wind power would increase by 1,700 MW per year on average between the end of 2017 and the beginning of 2020.
    [Show full text]
  • Effects on Support Structure Design Due to Wake-Generated Turbulence
    Effects on support structure design due to wake-generated turbulence M.Sc. Thesis by Russell A. Guzmán Tejada 2014 Delft, The Netherlands. Effects on support structure design due to wake-generated turbulence by Russell A. Guzmán Tejada Ing. Mecatrónica por la UNAM, México. in partial fulfilment of the requirements for the degree of Master of Science in Sustainable Energy Technology at the Delft University of Technology, to be defended publicly on Tuesday October 24, 2014 at 9:30 AM. Supervisor: Dr. ir. M.B. Zaaijer, TU Delft Thesis committee: Prof. dr. G.J.W. van Bussel, TU Delft Dr. Eliz-Mari Lourens TU Delft This thesis is confidential and cannot be made public until October 23, 2014. An electronic version of this thesis is available at http://repository.tudelft.nl/. Abstract As the world demands cleaner, sustainable and economical energy sources, the wind energy academia and industry battles to increase performance and reduce costs. One of the promising fields of study is wind turbine wakes in wind farms. The position of the turbines within the layout affects the intensity of their wake effects, such as reduced wind speed or turbulence, therefore the choice of its position has an impact on wake losses and fatigue damage induced by wake-generated turbulence on the components. In this work, the possibility of wind turbine’s support structure cost reduction is explored by studying the effect on its design (and cost) caused by wake-generated turbulence. Furthermore, layout optimization considering wake losses and the wake-affected support structure cost was studied. To obtain insights about these effects, the turbulence intensity calculation and a simple support structure design were implemented into the wind farm design tool TeamPlay (by M.
    [Show full text]
  • Gwec-2006 Final 01.Pdf
    TABLE OF CONTENTS Foreword. 1 Introduction: Booming wind markets put temporary strain on supply chains. 2 Global summary: The Status of the Global Wind Energy Markets . 7 Market forecast for 2007-2010. 12 COUNTRY REPORTS Europe . .16 European Union . 16 Germany. 20 Italy . 22 Poland. 24 Spain . 26 United Kingdom . 28 Americas . .30 United States . 30 Canada. 32 Brazil . 34 Mexico . 36 Asia . .38 India. 38 China. 40 Japan . 42 Korea. 44 Pacifi c. .46 Australia . 46 Africa. .48 Egypt. 48 Iran. 50 Morroco. 52 Conclusions: The need for solid political frameworks. 54 About GWEC . 56 Foreword 2006 was another booming year for the wind industry, The Global Wind Report 2006 is the second annual report with growth in annual installed capacity of 32 % globally, by GWEC on the status of global wind energy markets, and well ahead of our own projections. The market continued it clearly shows that wind energy today is a global business, to broaden, further establishing wind power as the leading with installations in over 70 countries. renewable energy technology – in the vanguard of the 21st century energy industry transformation. Globally, the value While Europe continues to lead the way, with 65 % of the of new generating plant installed in 2006 reached global market, the United States was the leader in new €18 billion, or US$24 billion. installed capacity for the second year running, bringing about 2,500 MW capacity of new plant on line in 2006. Against the backdrop of a growing acknowledgement of the twin crises of global climate change and energy security, The Asian market is also growing at a breathtaking rate, by wind power is the most effective means available now to 53 % in 2006.
    [Show full text]
  • Wind Power a Victim of Policy and Politics
    NNoottee ddee ll’’IIffrrii Wind Power A Victim of Policy and Politics ______________________________________________________________________ Maïté Jauréguy-Naudin October 2010 . Gouvernance européenne et géopolitique de l’énergie The Institut français des relations internationales (Ifri) is a research center and a forum for debate on major international political and economic issues. Headed by Thierry de Montbrial since its founding in 1979, Ifri is a non- governmental and a non-profit organization. As an independent think tank, Ifri sets its own research agenda, publishing its findings regularly for a global audience. Using an interdisciplinary approach, Ifri brings together political and economic decision-makers, researchers and internationally renowned experts to animate its debate and research activities. With offices in Paris and Brussels, Ifri stands out as one of the rare French think tanks to have positioned itself at the very heart of European debate. The opinions expressed in this text are the responsibility of the author alone. ISBN: 978-2-86592-780-7 © All rights reserved, Ifri, 2010 IFRI IFRI-BRUXELLES 27, RUE DE LA PROCESSION RUE MARIE-THERESE, 21 75740 PARIS CEDEX 15 – FRANCE 1000 – BRUXELLES – BELGIQUE Tel: +33 (0)1 40 61 60 00 Tel: +32 (0)2 238 51 10 Fax: +33 (0)1 40 61 60 60 Fax: +32 (0)2 238 51 15 Email: [email protected] Email: [email protected] WEBSITE: Ifri.org Executive Summary In December 2008, as part of the fight against climate change, the European Union adopted the Energy and Climate package that endorsed three objectives toward 2020: a 20% increase in energy efficiency, a 20% reduction in GHG emissions (compared to 1990), and a 20% share of renewables in final energy consumption.
    [Show full text]
  • The Zero Carbon Australia 2020 Stationary Energy Plan
    ENERGY A research collaboration PHOTO:TORRESOL ENERGY Australian Sustainable Energy Zero Carbon Australia Stationary Energy Plan > A ten year roadmap for 100% renewable energy > Baseload energy supplied by renewable sources > Affordable at $8 per household per week As a nation better endowed with renewable energy resources than most, and at the same time the OECD’s biggest per capita emitter of greenhouse gases, it behoves Australia to act promptly, and perhaps lead the world to a zero emissions economy based on renewable energy. This Report shows one way to do it, using presently available and commercially viable technology, and at an affordable cost comparable to our planned defence expenditure of 3% of GDP over the next ten years. Zero Carbon Australia is a timely and aspirational report that deserves the widest attention and debate, particularly by political and industrial decision makers. — gEnEral PETER GRATION, AC, OBE, FTSE FORMER AUSTRALIAN CHIEF OF DEFENCE As a company involved in the development of solar plants all over the world, at Torresol Energy we support the Zero Carbon Australia Plan that sets the path for a future with clean, renewable energy. Australia is one of the areas with better solar radiation and forms part of the international ‘sun belt’. Besides, the country has excellent conditions for profiting from that solar radiation: large low-populated areas to build the plants and an industry that can support the technological development in the solar generation sector. In that sense, each of Torresol Energy’s new projects introduces technologically advanced improvements to make Concentrated Solar Energy a manageable, economically competitive option and a real, viable, ecological and sustainable alternative to traditional energy sources.
    [Show full text]
  • Modelo Para a Formatação Dos Artigos a Serem Submetidos À Revista Gestão Industrial
    PERMANENT GREEN ENERGY PRODUCTION Relly Victoria V. Petrescu1, Aversa Raffaella2, Apicella Antonio2; Florian Ion T. Petrescu1 1ARoTMM-IFToMM, Bucharest Polytechnic University, Bucharest, 060042 (CE) Romania [email protected]; [email protected] 2Advanced Material Lab, Department of Architecture and Industrial Design, Second University of Naples, Naples 81031 (CE) Italy [email protected]; [email protected] Abstract After 1950, began to appear nuclear fission plants. The fission energy was a necessary evil. In this mode it stretched the oil life, avoiding an energy crisis. Even so, the energy obtained from oil represents about 60% of all energy used. At this rate of use of oil, it will be consumed in about 60 years. Today, the production of energy obtained by nuclear fusion is not yet perfect prepared. But time passes quickly. We must rush to implement of the additional sources of energy already known, but and find new energy sources. Green energy in 2010-2015 managed a spectacular growth worldwide of about 5%. The most difficult obstacle met in worldwide was the inconstant green energy produced. Key-words: environmental protection, green energy, wind power, hydropower, pumped-storage. 1. Introduction Energy development is the effort to provide sufficient primary energy sources and secondary energy forms for supply, cost, impact on air pollution and water pollution, mitigation of climate change with renewable energy. Technologically advanced societies have become increasingly dependent on external energy sources for transportation, the production of many manufactured goods, and the delivery of energy services (Aversa et al., 2017 a-e, 2016 a-o; Petrescu et al., 2017, 2016 a-e).
    [Show full text]
  • Climate Arsonist Xi Jinping: a Carbon-Neutral China with a 6% Growth Rate? Richard Smith [System Change Not Climate Change, USA]
    real-world economics review, issue no. 94 subscribe for free Climate arsonist Xi Jinping: a carbon-neutral China with a 6% growth rate? Richard Smith [System Change Not Climate Change, USA] Copyright: Richard Smith, 2020 You may post comments on this paper at https://rwer.wordpress.com/comments-on-rwer-issue-no-94/ “Did Xi just save the world?”1 With California and Oregon on fire as Climate Week opened in New York on September 21st “climate arsonist” Donald Trump took to the virtual floor of the UN General Assembly and slammed China for its environmental record while ignoring his own efforts to save the coal industry and boost fossil fuel consumption – actions that earned him that sobriquet from Joe Biden. Barely an hour later, in a speech that could not have been more opposite to Trump’s, President Xi Jinping gave hope to despairing environmentalists with his stunning announcement to the UN that “Humankind can no longer afford to ignore the repeated warnings of Nature and go down the beaten path of extracting resources without investing in conservation, pursuing development at the expense of protection, and exploiting resources without restoration. The Paris Agreement on climate change charts the course for the world to transition to green and low-carbon development. It outlines the minimum steps to be taken to protect the Earth, our shared homeland, and all countries must take decisive steps to honor this Agreement. China will scale up its Intended Nationally Determined Contributions by adopting more vigorous policies and measures. We aim to have CO2 emissions peak before 2030 and achieve carbon neutrality before 2060.”2 Nevertheless, Xi’s pledge raised more questions than it answered.
    [Show full text]