IEC TR 62933-2-201:2024

IEC TR 62933-2-201 ®
Edition 1.0 2024-09
TECHNICAL
REPORT
colour
inside
Electrical enery storage (EES) systems –
Part 2-201: Unit parameters and testing methods – Review of testing for battery
energy storage systems (BESS) for the purpose of implementing repurpose and
reuse batteries
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IEC TR 62933-2-201 ®
Edition 1.0 2024-09
TECHNICAL
REPORT
colour
inside
Electrical enery storage (EES) systems –

Part 2-201: Unit parameters and testing methods – Review of testing for battery

energy storage systems (BESS) for the purpose of implementing repurpose and

reuse batteries
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.020.30; 29.220.99 ISBN 978-2-8322-9516-8

– 2 – IEC TR 62933-2-201:2024 © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Background . 10
4.1 BESS market trends . 10
4.2 Issues on battery supply . 11
4.3 Motivation for the use of reuse batteries . 12
4.4 Configuration of reuse batteries . 12
5 Regulatory trends of repurpose and reuse batteries . 13
5.1 Overview. 13
5.2 Regulatory trend in China . 14
5.2.1 Battery utilization based on capacity . 14
5.2.2 Industrial and national policies . 14
5.2.3 Local policy (Shanghai) and business models . 14
5.3 Regulatory trend in the European Union . 15
5.3.1 European Battery Directive . 15
5.3.2 European Automotive and Industrial Battery Association (EUROBAT) . 16
5.4 Regulatory trend in Japan . 16
5.5 Regulatory trend in Korea . 17
6 Case studies for BESS using repurpose and reuse batteries . 17
6.1 General . 17
6.2 Case 1 (China) . 19
6.3 Case 2 (UK) . 20
6.4 Case 3 (Japan) . 20
6.5 Case 4 (Australia) . 20
6.6 Case 5 (North America) . 21
6.7 Case 6 (Korea) . 21
6.8 Summary of case studies . 22
7 Issues from the viewpoint of utility and user. 24
7.1 Overview. 24
7.2 Grid operator and large-scale BESS user’s point of view . 24
7.3 Small-scale BESS user's point of view . 24
7.4 Summary . 25
8 Comprehensive testing with intensive monitoring of BESS . 26
8.1 Current status of testing methods . 26
8.2 Issue on testing and design for BESS with repurpose and reuse batteries . 27
8.2.1 Performance uncertainty of new and repurpose batteries . 27
8.2.2 Prediction accuracy of battery performance in BESS . 29
8.2.3 Summary of testing and design issues . 30
8.3 System investigation for BESS implementation . 30
8.3.1 General . 30
8.3.2 Testing and intensive monitoring of performance distribution in BESS . 31
8.3.3 System design consideration . 32
8.4 Summary . 33

9 Suggestion for future discussion . 33
9.1 General . 33
9.2 Issues related to accuracy of measurements related to operation and

management . 33
9.3 Consideration of BESS application . 34
9.4 Issues related to information required for BESS design and operation . 37
Annex A (informative) Application scenarios and industrial policies in China . 39
A.1 Power battery echelon utilization and its main value scenarios . 39
A.2 Industrial policies . 39
A.3 National policies . 40
A.4 Local policy (Shanghai Government policy) . 41
A.5 Other initiatives . 41
A.6 Standard system framework of traction battery echelon utilization in China . 41
A.7 Business models . 42
Annex B (informative) EUROBAT (Association of European Automotive and Industrial
Battery Manufacturers) . 45
Annex C (informative) Regulatory trends in Japan . 46
C.1 Overview. 46
C.2 Storage Battery Industry Strategy . 46
C.2.1 General . 46
C.2.2 Strategic formation of global alliances and global Standards . 46
C.2.3 Expansion of a domestic market . 47
C.2.4 Improving the domestic business environment . 47
C.3 Study Group on Sustainability of Storage Batteries . 47
C.3.1 General . 47
C.3.2 Carbon footprint . 48
C.3.3 Human rights and environmental due diligence . 49
C.3.4 Reuse and recycle . 49
C.3.5 Data collaboration . 50
Annex D (informative) Regulatory trends in Korea . 51
D.1 Market trend in Korea . 51
D.2 BaaS industry development in Korea. 52
D.2.1 Policy development in Korea . 52
D.2.2 Battery and electric vehicle companies based on repurpose and reuse
batteries . 53
D.2.3 Testing and certification center for BaaS system (KTR) . 54
Annex E (informative) Case study in China . 56
E.1 First power battery disassembly and utilization line in Shanghai . 56
E.2 Factory Environment Decommissioned Power Battery Energy Storage
Demonstration Station . 56
E.3 Energy supply to 5G base stations based on the echelon utilization of retired

batteries . 56
E.4 Development trends and future prospects . 57
Annex F (informative) Case study in UK and EU . 58
F.1 UK case study of repurpose/second life BESS . 58
F.2 Other example installation of BESS system. 58
F.2.1 EV charger . 58
F.2.2 Monetise excess power . 59
F.2.3 Stationary energy storage solutions . 59

– 4 – IEC TR 62933-2-201:2024 © IEC 2024
Annex G (informative) Case study in Japan . 61
Annex H (informative) Case study in Australia . 63
H.1 BESS utilizing repurpose battery in Aust
...