Investigation Clears Neso of Blackout Cover-Up Allegations
Independent inquiry finds no evidence of record manipulation, despite whistleblower claims of concealed grid risks during summer heatwave.
Sarah Connor
An independent investigation found no evidence that Britain's National Energy System Operator (Neso) covered up blackout risks.
An independent investigation by Eversheds Sutherland found no evidence that Neso staff received instructions to delete, alter, or suppress records. The probe also uncovered no written proof of inappropriate version changes. The firm interviewed 36 witnesses across various functions and seniority levels within Neso, which employs approximately 2,700 staff, with about 130 in the control room.
This finding directly refutes whistleblower allegations that control room staff were encouraged to conceal or alter records. These actions were reportedly aimed at avoiding a paper trail linked to efforts to stabilize the grid during extreme heat between June 22 and 26, and to avoid public scrutiny or reputational damage.
Claire Coutinho also claimed the grid was not being managed securely, increasing the risk of blackouts. This information was allegedly hidden from the public. However, the Eversheds Sutherland report stated, "All witnesses denied that corporate affairs directly interfered in any operational decisions or activities taking place within the control room."
The investigation’s findings are clear that there was no evidence to substantiate any of the allegations around inappropriate influence over decision making or inappropriate record keeping processes.
Paul Golby, chairman of Neso, affirmed the investigation's findings. "The investigation’s findings are clear that there was no evidence to substantiate any of the allegations around inappropriate influence over decision making or inappropriate record keeping processes," Golby stated.
Despite clearing Neso of direct cover-up allegations, Eversheds did identify cultural, governance, and control issues requiring immediate attention. Golby confirmed that the board will oversee the development of plans to address these issues and ensure their urgent implementation.
Energy Minister Michael Shanks acknowledged the investigation's conclusions. "We have always taken allegations raised surrounding events in Neso’s control room during the summer heatwave extremely seriously," Shanks said. He added that the independent investigation showed none of the allegations could be substantiated by the evidence.
Shanks also noted that Ofgem's report confirmed the system operated and customer demand was met throughout the summer heatwave. He stressed, "However, the independent review raises areas for cultural improvement in Neso where we expect significant action without delay. We will keep progress under close review."
The independent review raises areas for cultural improvement in Neso where we expect significant action without delay. We will keep progress under close review.
Andrew Bowie, however, contended that the report raises more questions than it answers regarding Neso's culture, management, and operational independence. Bowie also linked the findings to the net-zero transition, stating it confirms that increased reliance on renewables makes grid management more difficult due to a lack of flexibility and inertia.