ESB has claimed the Green Transformation Award (500+ Employees) at the Green Awards 2026, recognised for embedding sustainability across leadership, culture, and capability through its Sustainability Transformation Enablement Programme, a large-scale organisational transformation aligned directly with core business KPIs and backed by innovative governance and sustained workforce engagement. The win establishes a clear benchmark for enterprise-level sustainability transformation in Ireland, demonstrating the standard of ambition, structural commitment, and measurable impact that future awards entrants will be expected to match.