The analysis, compiled by consultancy Cornwall Insight, highlights a dangerous lack of visibility regarding power capacity. As wind, solar, and battery storage proliferate, engineers struggle to map the modern system, a problem insiders claim has been ignored for two years. Executives are reportedly hesitant to acknowledge that these renewable sources are complicating grid management, fearing the political fallout of questioning the government’s net zero trajectory.

Inaccurate forecasting is already inflating consumer energy bills, but the operational risks are more immediate. Neso issued emergency notices in both June and July as heatwaves pushed temperatures to 37.7C, forcing the operator to scramble for additional supply to prevent grid failure. With cooling demand surging, industry bodies are now pressuring the government to cut green levies, warning that the current path threatens both economic stability and the physical reliability of the national power network.