Delivering a holistic, future-ready modernisation programme for the UK's largest electricity distribution network

nxzen delivered a five-year transformation programme that improved data quality, enhanced operational performance, reduced costs, and strengthened customer service at UK Power Networks.

The problem

UK Power Networks is the UK's largest electricity distribution business, supplying power to more than 18 million customers across London, the East and the Southeast of England.

In 2013, the organisation embarked on a five-year programme to transform its entire operation, focusing on modernising data quality and governance, enhancing operational performance, reducing costs, and elevating asset planning.

To achieve these goals, the organisation needed to:

Standardise end-to-end processes across multiple business functions
Improve data integrity and governance
Enhance operational efficiency and customer experience
Upgrade legacy systems and embed modernised ways of working

The goal was clear: build a future-ready operating model that met the highest regulatory standards, optimised operations and delivered better value and service to customers.

The numbers speak for themselves

40%

Reduction in business support process cycle times during the transformation

5-year

End-to-end transformation successfully delivered

20%

Reduction in maintenance costs achieved during the programme

Our approach

nxzen applied its holistic business transformation approach, designed to deliver sustainable operational excellence for large-scale utilities.

The programme redesigned and integrated all five organisational layers:

Business process layer: creating a consistent, unified way of working
Organisation layer: aligning teams, structures, and workflows
People & culture layer: engaging and training thousands of employees
Data layer: improving accuracy, governance, and asset intelligence
Technology layer: modernising legacy systems and migrating millions of asset records into SAP

By evolving all five layers simultaneously, UK Power Networks gained a fully integrated operating model built for long-term stability, efficiency and performance.

The outcome

The transformation programme delivered measurable improvements across cost, performance, safety, and customer service. By addressing people, process, data, and technology in parallel, UK Power Networks established a stronger operational foundation and a more resilient, efficient, and customer-centric organisation.

During the transformation, UK Power Networks achieved:

20% reduction in indirect costs
5% reduction in operational costs
20% reduction in maintenance costs
40% reduction in business support process cycle times

Following the programme, the organisation continued to experience benefits, including:

The lowest number of lost-time incidents per 100 employees among UK DNOs
The lowest average domestic distribution costs
A decrease in customer interruptions and customer minutes lost
An improved Ofgem service quality score

The results

Significantly strengthened data quality, governance, and asset intelligence
Faster, more efficient business processes across the organisation
Improved service reliability and customer experience
A scalable, sustainable operating model that continues to deliver long-term value

Let’s solve your operational challenges together

Whether you're upgrading your SCADA systems, accelerating decarbonisation, or strengthening your asset performance, nxzen helps you build infrastructure that’s resilient by design.

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