1、Analysis ofSolar Power Generation Costsin Japan 2021October 2021Acknowledgements In compiling this report,several power plant operators provided us with cost data of their plants,as well as advice regarding analysis.Although we are not able to list the names of each individual,we would like to expre

2、ss our sincere gratitude to everyone who cooperated in this study.Author Keiji Kimura,Senior Researcher,Renewable Energy Institute Disclaimer Although the information contained in this report is based on information available at the time of its writing,Renewable Energy Institute cannot be held liabl

3、e for its accuracy or correctness.About Renewable Energy Institute Renewable Energy Institute is a non-profit think tank which aims to build a sustainable,rich society based on renewable energy.It was established in August 2011,in the aftermath of the Fukushima Daiichi Nuclear Power Plant accident,b

4、y its founder Mr.Son Masayoshi,Chairman&CEO of SoftBank Corp.,with his own resources.-Part of this publication was supported by the German Federal Ministry of Economic Affairs and Energy.Contents INTRODUCTION:STUDY BACKGROUND AND OBJECTIVES.1 1 CHARACTERISTICS OF INVESTMENT COST STRUCTURE.3 1.1 TREN

5、DS IN INVESTMENT COSTS.3 1.2 SOLAR MODULE COSTS.4 1.3 INVERTER COSTS.5 1.4 MOUNTING SYSTEM COSTS.6 1.5 GRID CONNECTION COSTS.9 2 FACTORS IMPACTING INVESTMENT COSTS.11 2.1 INVESTMENT COSTS BY CERTIFICATION YEAR.11 2.2 INVESTMENT COSTS BY CONTRACT TYPE.12 3 STRUCTURE OF OPERATION AND MAINTENANCE COSTS

6、.14 3.1 OPERATION AND MAINTENANCE COST BY PLANT SIZE.14 3.2 CHANGES IN OPERATION AND MAINTENANCE COSTS OVER TIME.16 3.3 OPERATION AND MAINTENANCE COSTS BY CERTIFICATION YEAR.17 SUMMARY OF ANALYSIS FINDINGS.18 1 Introduction:Study Background and Objectives This report is the follow-up to a report we