Law firm Eversheds Sutherland, which carried out the independent investigation, said there were “high levels of stress and concern” within NESO’s Electricity National Control Centre over the “current state of the energy industry generally” and the longer-term ability to keep it balanced.
It said this was, according to evidence gathered from staff, due to the fact that traditional methods of electricity generation such as gas were “easier to manage”, compared to renewables, which were “less flexible”, and were making the job of ensuring supply meets demand “more difficult”.
The probe also found there to be a “significant disconnect” between those working in the control room and NESO’s leadership.
Multiple witnesses expressed the view that those in senior leadership and executive positions “do not fully appreciate or understand either the way in which the control room works, or the reality of the pressures faced by those on the frontline who are responsible for ‘keeping the lights on'”, Eversheds’ report said.
The investigation was prompted after Conservative shadow energy secretary Clare Coutinho said in July she had been contacted by a whistle-blower alleging that NESO had been “hiding information about how securely our grid is being run”.
One of the claims was that control room staff were encouraged to conceal or alter records to avoid leaving a paper trail linked to efforts to stabilise the grid during a period of extreme heat in June.
This was done in order for NESO, which is owned by the government, to avoid public scrutiny or reputational damage, according to the allegation.
Eversheds said its investigation did not substantiate any of the allegations from whistle-blowers but did identify “cultural, governance and control issues” that it said were “significant findings in their own right”.
Fintan Slye, chief executive of NESO, said the investigation identified “areas where we could improve how colleagues can raise concerns and how we respond to them”.
“I want all colleagues at NESO to feel heard. We will act on the recommendations, working closely with our trade unions, and be open with colleagues about the progress we make,” he added.