A series of events in recent weeks has set alarm bells ringing about the fragility of our electricity system.

On Wednesday, the National Energy System Operator, NESO, issued an Electricity Margin Notice (EMN) to the market, giving participants the opportunity to make any additional generation or flexibility available during the forecast period. It said its forecasts indicated tight electricity margins during Thursday evening’s peak period, which it laughingly blamed on extreme temperatures across Europe reducing the availability of some generation.

Read more: Renewables Heatwave Trouble Points to Britain’s Blackouts Future