24 Journal of Economic Science Research | Volume 03 | Issue 02 | April 2020 Distributed under creative commons license 4.0 DOI: https://doi.org/10.30564/jesr.v3i2.1702 Journal of Economic Science Research http://ojs.bilpublishing.com/index.php/jesr ARTICLE Analysis of Renewable Energy Research Hotspots and Trends Based on Bibliometric and Patent Survey Yidan Wang 1 Jiaxing Wang 1 Jing-Li Fan 1,2 Yuhui Xia 3* Xian Zhang 3 1. Center for Sustainable Development and Energy Policy Research (SDEP), School of Energy & Mining Engineering, China University of Mining & Technology, Beijing (CUMTB), Beijing, 100083, China 2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing, 100083, China 3. The Administrative Centre for China’s Agenda 21 (ACCA21), Ministry of Science and Technology (MOST), Beijing, 100038, China ARTICLE INFO ABSTRACT Article history Received: 14 February 2020 Accepted: 9 March 2020 Published Online: 30 April 2020 In recent years, renewable energy has taken on an increasingly important role as a result of the depletion of traditional fossil fuels and the pressure of climate change. Due to the advantages of clean energy production and wide availability, research on renewable energy has increased worldwide. We collected data from the Web of Science and the Derwent Innovations Index to analyze research trends in the feld of renewable energy. It was found that the number of research achievements in this feld has developed rapidly worldwide since 2005. The United States ranks frst in the quantity and quality of literature and fourth in the number of authorized patents. China ranks second and frst regarding the quantity of literature and autho- rized patents, respectively. Biomass energy, wind energy, and solar energy are trending research topics in various stages of development. China has maintained close cooperation with the United States, the United Kingdom, Australia, and other countries. Keywords: Renewable energy Technology transfer Bibliometrics Authorized patent analysis Situational analysis *Corresponding Author: Yuhui Xia, The Administrative Centre for China’s Agenda 21 (ACCA21), Ministry of Science and Technology (MOST), Beijing, 100038, China; Email: xiayh@acca21.org.cn; Xian Zhang, The Administrative Centre for China’s Agenda 21 (ACCA21), Ministry of Science and Technology (MOST), Beijing, 100038, China; Email: zhangxian_ama@163.com 1. Introduction R enewable energy is a relatively new type of ener- gy and can be used with a wide range of technol- ogies. It is used increasingly worldwide attention due to the low pollution and low environmental impact [1] . For example, Susana Garrido Azevedo et al believes that the number of publications related to renewable energy has increased rapidly in recent years [2] . Proskuryakova and Ermolenko used Foresight methodology to study Russia’s energy structure and explained through Russia’s energy strategy to 2030 that develop renewable energy sector and realize rapid transformation of energy structure are important [3] . On the other hands, the development of renewable energy technology has reduced the power generation cost of solar, wind, and other renewable ener- gy, thereby increasing the competitiveness of renewable