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Enabling ESB to deliver digital transformation at scale

ESB is Ireland’s leading energy company, established in 1927 as a statutory corporation under the Electricity (Supply) Act. ESB is majority-owned by the Irish Government operating across electricity generation, transmission and distribution, and supply to homes and businesses. Responsible for critical national infrastructure, ESB is delivering a major transformation agenda driven by climate targets, asset digitisation, electrification of transport and evolving customer expectations.

Key Figures

savings delivered through optimised quality and automation
€ 0 m+
average quarterly productivity value
€ 0 k
year trusted partnership with ESB
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The challenge

As transformation accelerated, ESB’s delivery model was under pressure to scale efficiently. The business needed to increase delivery capacity, speed and confidence, while controlling cost and maintaining quality cross a highly complex, regulated environment. Traditional onshore delivery models, limited test automation and inconsistent quality practices made this difficult. Without change, ESB faced rising costs, increased delivery risk and growing pressure on programmes underpinning customer services and national infrastructure. ESB required a trusted partner to help industrialise quality at enterprise scale — without compromising reliability or value for money.

The solution

Together, Expleo and ESB established a scalable, optimised quality capability enabling faster, more cost‑effective delivery with greater confidence — across both major transformation programmes and business‑as‑usual change.

Rather than optimising individual projects in isolation, the focus shifted to a long‑term, enterprise‑wide approach to quality, aligned with ESB’s business strategy and sustainability goals.

This partnership enables ESB to:

  • Scale delivery without linear cost increases
  • Protect critical services while accelerating change
  • Reinvest savings into strategic programmes

What where the results?

ESB now has a robust, cost-efficient foundation to support continuous transformation across its IT portfolio. Key business benefits delivered:

  • €16M+ in quantified savings realized
  • Lower cost of quality at enterprise scale
  • Stronger consistency and governance across the organization
  • Sustained ROI beyond individual projects
  • Improved service resilience for customers

How did we help?

As ESB’s strategic Quality Assurance partner, Expleo provides more than testing capability. We bring enterprise leadership, governance and industrial-scale delivery models that align quality directly with business outcomes.
By combining deep technical assurance expertise with a strong understanding of ESB’s regulatory, operational and sustainability challenges, Expleo supports ESB in delivering change that is faster, safer and more cost-effective — year after year.

We helped:

  • Offshore Resourcing: Used a multi-location model to save €600k per quarter.
  • Enhanced Testing: Improved end-to-end testing from requirements to generation for better speed and quality.
  • Faster Automation: Streamlined how projects are qualified for automation to speed up tool and tech decisions.
  • Technical Services Team: Formed a joint team to deliver specialized support and high-standard service models.
  • Stakeholder Collaboration: Partnered with senior leaders to identify and scale cost-saving digital initiatives.

Quality Assurance & Test Management

  • Strategic Quality Transformation & Enablement
  • Programme & Project Governance & Compliance
  • Quality Capability & Maturity Assessment
  • Software Solution Verification & Validation
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Intelligent Automation

  • Benefits Realisation Through Automation
  • Automation Framework Provisioning
  • Intelligent Automation Solutions
  • Hybrid Testing Solutions
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Quality Engineering

  • Performance Engineering
  • Non-Functional / Operational Testing
  • DevSecOps
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Our project team

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