EDF partnered with t-three to deliver a repeatable 9-month leadership programme that built deep self-awareness, confidence and connection across the business.

Using tools such as Facet5 and Truth Teller, participants explored their leadership style in depth, gained clarity on how they are experienced by others and surfaced blind spots that might otherwise go unnoticed. 

Participants described the programme as insightful, energising, and confidence-building. Highlighting the power of honest feedback through Truth Teller, which removes ambiguity and allows real behavioural change rather than speculation. 

Leaders valued the openness of the environment and the chance to test new ways of showing up as leaders, supported by their cohort and facilitators.

The programme demonstrated clear organisational value, with EDF estimating an ROI of over £500m, linked to improvements in leadership behaviour, engagement, decision-making, and operational effectiveness.

All participants completed the programme  - a 100% completion rate, a first for EDF - and internal KPIs were exceeded, including Satisfaction of 88 and an NSP of 80.