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Case Study - Reducing Meter Defects by 20% via 6 Sigma


A large energy business was experiencing a high proportion of meter installation failures.

1. We mapped the process and gathered data

To increase understanding of what was really happening during meter installation and replacement.

3. We tested the various hypotheses using statistical methods.

To give clear focus on the actual causes of failure, and prevent us fixing things that weren't broken.

4. We implemented and measured changes designed to address the real causes of failure

To ensure changes were effective, sustained, and did not have unintended negative consequences.

5. Result

Defect rates were reduced by 20%, and variation in defect rates was reduced by over 30%!


Delivery to Plan


Defect Reduction


ROI from aorist consultancy, training and coaching

Businesses typically benefit from a 50 - 100+ times rate of return, when measuring the cost of an aorist Lean 6 Sigma or Systems Thinking / Systems Dynamics Simulation training course and coaching against the benefits derived from applying it the very first time in their business.