Seasonal variability in the price cap is likely to grow without sufficient long-duration storage. Image: Getty.
Volatility in the wholesale energy market is likely to last until at least 2030 unless significant changes are made to long-term energy strategies, according to Cornwall Insight.
According to the research company’s Benchmark Power Curve, which monitors energy investment and operational decisions across a 30 year period, power prices could get increasingly volatile from 2026. There is likely to be significant seasonal variation in particular, with the difference between prices in the summer and winter standing at £95/MWh in 2026, rising to nearly £120/MWh by 2030.