SSEN Transmission achieves top stakeholder engagement rating for fourth year in a row

SSEN Transmission has been awarded a top rating for stakeholder engagement for the fourth year running – and its highest score to date – following a comprehensive audit carried out by the leading independent global consulting and standards firm, AccountAbility.

The business has scored 95% on the AccountAbility Stakeholder Engagement Maturity Ladder in its 2025 AA1000 Healthcheck – a significant jump up from last year’s rating of 88%. The rating comes as SSEN Transmission takes engagement on its £20bn ‘Pathway to 2030’ investment programme to its next phase, with post-submission engagement following on from one of the biggest and most impactful public consultation exercises the country has ever seen.

The AA1000 Stakeholder Engagement Standard is considered the ‘gold standard’ in stakeholder engagement accreditation and helps ensure the highest standards in professional stakeholder engagement are delivered.

SSEN Transmission’s latest performance sees the company maintain and further strengthen its position in the highest ‘Advanced’ stage of AccountAbility’s Maturity Ladder – an important commitment it promised to achieve by March 2026, which is the end of energy regulator Ofgem’s price control period for the UK’s high voltage electricity transmission network, known as RIIO-T2.

The AccountAbility AA1000 Healthcheck incorporates a thorough review of stakeholder engagement practices and processes, including interviews with stakeholders.

Christianna Logan, SSEN Transmission Director of Customers and Stakeholders said: “I’m delighted with this year’s result - a 95% score in AccountAbility’s Healthcheck. It's a 7% jump from last year and our highest score since we started this journey in 2020.

“Getting over 90% in all six areas and moving up in the ‘Advanced’ category really shows the strength of our approach and the effort everyone is putting in across our business. As our engagement work keeps growing in scale and complexity, it’s brilliant to see that we’re improving year on year.

“With more eyes on what we do than ever before, it’s great to have this independent assessment to demonstrate the quality of our engagement. The hard work doesn’t stop here; as we head into the final year of the RIIO-T2 price control period, and prepare to deliver our Pathway to 2030 programme, we need to keep listening carefully, adapting and acting on what we hear, and making sure stakeholders feel genuinely involved in the decisions that affect them.”