Summary

The National Transmission Company South Africa (NTCSA), formerly Eskom Transmission has a long history of transformer procurement shaped by evolving market conditions and legacy supplier relationships. Historically, the organization relied on a small pool of long-standing international transformer suppliers, model that was effective for many years. However, the recent surge in transformer demand driven largely by renewable energy integration and grid strengthening projects resulted in factory slot shortages and extended manufacturing lead times.

This placed pressure on organization’s ability to meet project timelines.

This paper highlights an optimised procurement process to address these constraints. A major focus was the optimization and acceleration of sourcing activities through establishment of a pre-qualified supplier panel, the updating of technical specifications and enhancement of the applicable technical evaluation criteria. These interventions reduced the procurement process while they strengthened the competition and safeguarded the technical requirements.

To further combat the bottlenecks in the process, further capability assessments were carried for transformer critical components. The exercise proved to curb the lead times while maintaining standardisation for interchangeability. Supplier onboarding workshops strengthened compliance and improved bid quality. Quality assurance improvements were achieved through risk-based Factory Acceptance Test approach (FAT) as detailed in [1].

This paper concludes that these integrated measures enhanced the efficiency in the procurement process and increased supplier diversity, positioning the utility to meet South Africa ‘s evolving power network infrastructure needs.

Additional informations

Publication type Session Materials
Reference A2_10771_2026
Publication year
Publisher CIGRE
Country South Africa
Study committees
File size 239 KB
Price for non member 30 €
Price for member 30 €

Authors

HLAKUDI Mantsie; MTETWA Sidwell

Keywords

Global Supply chain value, Optimization, Transformer procurement process

A South African case study on transformer procurement process optimization for a constrained global supply chain value