‘Concerning issues’ found at GB power grid by inquiry into cover-up claims

by | Nov 9, 2026 | Energy

‘Concerning issues’ found at GB power grid by inquiry into cover-up claims

An external legal investigation into allegations against the National Energy System Operator (Neso) has concluded that while specific claims of misconduct were not substantiated, the grid operator exhibits troubling organizational problems.

The inquiry was launched following accusations from control room staff that senior executives at the government-owned operator sought to minimize public perception of grid stability risks. Whistleblowers alleged that corporate affairs personnel interfered with operational communications and that engineers faced intimidation for raising concerns. The investigation by law firm Evershed Sutherlands examined these claims over a three-month period after the company abandoned plans for an internal review.

The law firm determined there was no evidence that operational decisions were improperly influenced or that staff were discouraged from documenting grid management efforts. However, the report identified what it characterized as “significant” cultural and governance shortcomings within the organization. Investigators found elevated stress levels among control room engineers and noted that senior leadership appeared to underestimate the challenges faced by operational staff managing grid stability amid the energy transition.

The investigation revealed that employees felt their concerns were not adequately heard due to pressure to maintain favorable relationships with external stakeholders including government and regulators. Tim Jarvis, chief executive of energy regulator Ofgem, stated that while the investigation did not confirm the specific whistleblower allegations, it raised important questions about workplace culture at Neso. Neso’s chief executive characterized the findings as constructive and pledged to implement recommended improvements in staff communication channels.

Ofgem is conducting a separate ongoing inquiry to determine whether the identified cultural issues affected operational decisions, system security, or consumer costs, with results expected no later than 31 March 2027. The regulator cautioned that enforcement action could follow if findings indicate Neso failed to meet regulatory obligations. Government energy officials stated expectations for prompt corrective measures.

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