Large State Utilities Company


Case Study, Utilities

Increasing the number of opportunities for the re-use of technologies and processes

The Client

Large State Utilities Company

The Challenge

Mango Group was engaged to provide the Board and Executive with an independent review of Grange (their key operating system) to establish the continuing validity of the 2008 Grange Review Report. We were tasked to determine whether Grange remained a “fit for purpose” system which met the organisation’s requirements in the short term (5 years).

Our approach

The approach includes a review of the three key area including the Grange Futures Review 2008, Current State Analysis and Future Strategy.

We analysed the 2008 Grange Futures Review, assessed the extent to which recommendations had been addressed and evaluated existing risks and issues.

We then conducted a review of key documentation, held interviews with key business and IT stakeholders, Hewlett Packard (HP), assessed functional and technical capabilities and identified risks.

Finally we reviewed Grange’s ability to meet future requirements and made recommendations for the next 5 years.

The Outcome

Our assessment indicated that the technology was a high value, stable, business critical system which had matured over years of development and investment, and that it met business needs.   We identified that there was no technical requirement to replace, or significantly transform, Grange within the next 5 years, and that the organisation should defer further significant capital investment and extend the longevity of the system by maintaining and generating value from the existing asset.

Our advice, which has been accepted and implemented by the Executive, was to maximise the return on investment by examining how to retain the core billing functions whilst incrementally reducing reliance on the system by ‘decomposing’ some elements of the system and migrating functionality to more strategically-aligned customer systems.

costs deferred

return on investment maximised


  • Regional Shire Group​

    Five shires were replacing their street lights with high efficiency LED street lights designed to save the group money and reduce CO2 emissions. Community engagement was critical to success and Mango made it happen.

  • Major Utility Company​

    Improving customer service was the driver for Mango to create ‘gamified’ experiences that immerse the client’s learners in a real world situation where they learn by practising new skills and behaviours.

  • Major State Utility​

    The executive wanted a ‘warts and all’ review by Mango to provide fresh insights on how they could improve business customer engagement and the delivery of business outcomes and a road map for how to get it done.