June 2026 UK Energy Market Drivers  

17/07/26

Market Overview

The UK energy market in June 2026 was shaped primarily by developments in the Middle East and their impact on global gas supply. The month began with elevated prices as uncertainty around a US–Iran peace agreement, weak LNG supply, and Norwegian outages maintained a significant risk premium. As negotiations progressed and an interim agreement emerged, expectations increased that the Strait of Hormuz would gradually reopen, easing supply concerns. Gas prices softened through the month, although volatility remained elevated as traders responded to setbacks in negotiations and ongoing shipping security risks. In the power market, wind generated 27% of electricity, closely followed by gas at 26%, while imports contributed 16%, increasing exposure to fuel market movements and external supply risks.

Gas Supply

Gas supply conditions improved during June, although markets remained sensitive to geopolitical developments and infrastructure disruptions. Early in the month, reduced LNG deliveries into Northwest Europe and outages at key Norwegian facilities tightened regional supply and supported prices. European storage levels increased from 40% to 49% during June, reflecting strong injections ahead of winter, although inventories remained below seasonal norms. The UK's supply mix remained relatively resilient, with domestic production and Norwegian imports accounting for around 90% of supply, while storage withdrawals and LNG imports each contributed 5%. Progress towards a US–Iran agreement improved confidence in future LNG availability, but uncertainty around shipping security and Qatari exports continued to support prices.

Demand

Demand remained supportive throughout June as Europe continued rebuilding gas inventories ahead of winter. Strong storage injection requirements provided a consistent source of demand, particularly given inventories remained below historical averages. This helped offset some of the downward pressure from improving supply prospects later in the month. Outside Europe, warmer weather across parts of Asia and Europe increased cooling demand and intensified competition for LNG cargoes. While progress towards a US–Iran agreement improved confidence in future supply availability, demand from storage injections and seasonal consumption prevented a significant fall in prices. As a result, underlying market conditions remained relatively tight despite improving geopolitical sentiment.

Geopolitical Factors

Geopolitical developments remained the dominant market driver throughout June. Continued negotiations between the US and Iran regarding the Strait of Hormuz heavily influenced market sentiment, with prices responding quickly to both diplomatic progress and renewed tensions. Early-month military activity and uncertainty around a lasting agreement supported prices, while the subsequent interim agreement helped ease supply concerns. However, recurring threats to shipping security and uncertainty over implementation of a permanent settlement maintained volatility. More broadly, ongoing sanctions on Russian energy exports and continued Russian attacks on Ukrainian energy infrastructure reinforced long-term concerns around European energy security. These factors ensured that geopolitical risk remained a significant component of energy pricing despite improving prospects for Middle Eastern supply.

Power Generation Mix

 The UK generation mix remained relatively balanced, although lower renewable output increased dependence on gas and imports. Wind was the largest source of generation at 27%, narrowly ahead of gas-fired generation at 26%. Imports supplied a further 16% of electricity, while solar contributed 12% and nuclear 9%, with the remainder coming from biomass and other technologies. Compared with April, weaker wind generation and lower nuclear output increased the role of conventional generation within the system. This strengthened the relationship between gas and power pricing and left wholesale electricity prices more sensitive to developments in fuel markets. Despite renewables remaining the largest source of generation, gas continued to act as the primary marginal price setter during much of the month. UK’s carbon price rose by 10% to mid-June, before returning to roughly where it was at start, by the end of the month - £56 per tonne.