Summary
The Technical Brochure analyzes regulatory frameworks for modernizing and extending the lifespan of transmission and distribution assets under ageing infrastructure and energy transition pressures. It emphasizes risk and condition-based asset management, balanced CAPEX/OPEX treatment, and aligned incentives. International evidence shows that effective regulation fosters efficient investment, supports innovation, preserves reliability, and minimizes tariff impacts while ensuring long-term system resilience and sustainability.
Table of content
1. Introduction
1.1. The Role of CIGRE Works in WG C5-37
1.2. List of CIGRE References on Similar Subject
2. Conceptual Framework
2.1. Economic Rationale for Regulatory Asset Valuation
2.2. Routes for Grid Regulation
2.3. Grid Ageing and Modernizations – Regulatory Concerns
2.4. Extension of Useful Life
2.5. Modernization
2.6. Definition of Asset-based revenues
2.7. International Comparisons
2.8. References
3. International Benchmark - Detailed Models
3.1. Australia – Regulatory Framework for Asset Replacement
3.2. United Kingdom — RIIO Framework
3.3. Canada - End-of-Life (EOL) Asset Management
3.4. Portugal — Rational Incentive of Investments in Asset Replacement
3.5. References
4. International Benchmarks – Survey Outcomes
4.1. Transmission & Distribution Grids: Ownership and Regulatory Implications
4.2. Operational Procedures
4.3. Useful Life of Transmission and Distribution Grid Assets - Regulations
4.4. Grid Modernization Regulations
4.5. Survey Results on Modernization with New Technologies
4.6. Brief Summary of Survey
5. Final Remarks
5.1. Key Takeaways
Appendix A
Appendix B
B1. Introduction
B2. Transmission Segment
B3. Distribution Segment
B4. Regulatory Challenges in Asset Replacement
B5. Open Questions for Asset Replacement Framework
B6. Conclusions – The Central Role of Asset Replacement
Appendix C
C1. Questions & Answers – Regulation Applied
C2. Questions & Answers – operational procedures, asset management practices, and useful life consideration
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 985 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-690-4 |
| Study committees | |
| Working groups | WG C5.37 |
| File size | 12 MB |
| Pages number | 73 |
| Price for non member | 140 € |
| Price for member | Free |
Authors
J.C. MELLO, Convenor (BR), V. RIBEIRO, Secretary (BR)
M. CSÖRE (HU), M. PAPON (FR), R. DAVISON-KERNAN (UK), N. RAJBHANDARI (US), A. DELAVARI (CN), S. TIJANI (GH), M. GARNACHO (ES), I. SIQUEIRA (BR), B. HERNDLER (AT), D. HELMI (EG), A. JARALLA (AU), T. KESSLER (GE), M. KAVIMANDAN (US), C. KOTHARU (US), M. MARCOLT (RO), B. QADIR (AU)
Keywords
regulatory frameworks, grid modernization, asset life extension, ageing infrastructure, asset performance management, risk-based regulation, CAPEX OPEX balance, tariff impact, regulatory incentives, power system resilience
