West Burton A power station

In summer 2026, Great Britain experienced a series of unusually tight electricity system periods during hot, low-wind conditions. Electricity Margin Notices were issued on 24 June, 26 June and 9 July, highlighting that energy system stress is no longer only a winter issue. For business energy users, the lesson is not that the system failed. It did not. The more important point is that hotter weather, lower renewable output, generation availability, interconnector dynamics and demand patterns can combine quickly to move prices and create short-term risk. That makes flexibility, better energy data and a clear procurement strategy increasingly important for organisations that want to manage both cost and resilience.

As Allocation Round 8 (AR8) of the UK's Contracts for Difference (CfD) scheme progresses, developers, investors and energy buyers are closely assessing what the latest auction could mean for renewable energy deployment, investment and route-to-market strategies. In this article, Tom Hooper, Senior PPA Originator at EDF, explores the key AR8 changes, expected outcomes and why CfDs remain a popular choice for developers, while also examining the growing role of CPPAs, negative price protection and revenue optimisation in helping renewable asset owners maximise value in an increasingly dynamic power market.