Case Study:

48% improvement in manufacturing quality


Reducing manufacturing rework through data-driven quality control

Renewables Reducing manufacturing rework through data-driven quality control 48% improvement in manufacturing quality

The Client

A leading manufacturer of renewable energy infrastructure.

The Problem

Our client is a specialist in a specific area of renewables manufacture. It was facing recurring quality issues during final on-site testing, which led to costly rework and delivery delays. It wanted to improve quality control at the manufacturing stage, helping to reduce delivery delays and potential fines. 

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The QEA solution

After collecting and analysing nearly 700,000 observations, including all the current tolerance levels that were set, we could see that there were some key areas where the business  could focus, based on patterns revealed in the data – a correlation matrix – that would ensure better quality control at the manufacturing stage. We identified the ideal tolerance levels for each of these processes, based on intelligent data analysis.

“We always had data—but we didn’t have clarity. Insight Delivered helped  us uncover what truly impacts product quality. The AI-powered insights shifted us from reactive fixes to proactive control, driving down rework and improving consistency.” 

Director of Manufacturing Quality

The result

Our work with this client shows how it is possible to collect and analyse huge quantities of disparate data, and then apply AI to produce a measurable result. In this project, results included:

  • 48% reduction in rework costs, translating to substantial savings in materials, labour and transport.
  • 30%–40% improvement in first-pass yield, minimising delays in delivery and downstream revalidation.
  • Up to 25% faster turnaround in production cycles, driven by fewer quality interruptions.
  • Improved accuracy and reliability of tolerance settings, embedded across ERP and QA systems.
  • Cross-site standardisation achieved across geographies, ensuring consistent process control globally

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