UK Energy Market Report — 11 July 2026

What we’re watching today

• Carbon intensity forecast at 196 gCO2/kWh (high) — gas and imports dominate generation mix.
• Sizewell B lifetime extension to 2055 and Lynemouth CFD signing signal long-term nuclear and low-carbon dispatchable capacity.
• Record U.S. crude production and exports may influence global oil prices, affecting fuel costs.

Headlines and what they mean

Sizewell B power plant given lifetime extension to 2055

The extension of Sizewell B’s operational life to 2055 confirms the government’s commitment to maintaining nuclear capacity as a stable, low-carbon source. This supports long-term energy security and reduces reliance on volatile gas imports. The decision reinforces the role of existing nuclear infrastructure in the UK’s net zero transition and may influence future investment in nuclear upgrades and new builds source.

Lynemouth Power Station: signature of low-carbon dispatchable Contract for Difference

The signing of a CFD for Lynemouth Power Station marks a strategic move to secure low-carbon, dispatchable generation. This project, likely involving carbon capture or biomass co-firing, will help balance intermittent renewables and support grid stability during peak demand. The award signals government confidence in hybrid low-carbon technologies and may encourage similar bids from other thermal plants seeking decarbonisation pathways source.

Government approves UK’s second largest solar farm

The approval of One Earth Solar Farm underscores continued momentum in utility-scale solar deployment. With the UK aiming for 70 GW of solar capacity by 2030, this development contributes to grid resilience and lower wholesale prices during daylight hours. The project’s fast-tracked consent reflects improved planning processes for renewable infrastructure, reducing development delays source.

Draft strategic policy guidance for electricity networks growth

The draft guidance outlines a framework for accelerating grid expansion to accommodate rising renewable generation and electrification. It addresses capacity constraints and interconnection bottlenecks, particularly in high-demand regions. This could influence future procurement of network upgrades and shape investment in smart grid technologies, supporting the integration of distributed energy resources source.

UK Emissions Trading Scheme: guidance on market participation

New guidance on participating in the UK ETS provides clarity for businesses on compliance, reporting, and auction mechanisms. With the UK ETS now fully operational, this update helps organisations manage carbon liabilities and plan for future allowances. It also supports transparency and market confidence, particularly for firms with exposure to carbon-intensive operations source.

Geopolitics and global markets

Middle East tensions are driving renewed volatility in global oil markets, with renewed risks to Strait of Hormuz shipping routes pushing prices higher source. Kazakhstan’s extension of its petroleum export ban adds to supply uncertainty, while U.S. oil output has reached record levels, reinforcing America’s position as the world’s top crude producer source. These dynamics may influence global crude pricing, affecting fuel costs for UK transport and industrial users. Simultaneously, extreme heatwaves are impairing nuclear plant performance across Europe, reducing output and increasing reliance on gas — a trend that could pressure UK wholesale prices during heat events source.

The view from the trade desk

The grid’s current carbon intensity of 196 gCO2/kWh — driven by 46.3% gas and 16.8% imports — indicates a high-emission day, particularly during peak evening hours. Wind generation at 15.1% is moderate, while solar remains low at 1.8%. This mix suggests that load shifting and demand-side flexibility will be critical for cost and carbon management. With the UK ETS now operational, businesses should review their exposure and consider early allowance purchases or procurement of renewable PPAs to hedge against future price volatility.

What to do this week

• Review exposure to gas and imported electricity, particularly for operations with high evening load profiles.
• Assess eligibility for the UK ETS and begin planning for compliance reporting ahead of the next auction cycle.
• Evaluate opportunities to shift non-essential load to daytime hours, when wind and solar availability is higher.
• Explore procurement of renewable PPAs or participation in the LoDES Demonstration Programme to secure long-duration storage solutions.
• Engage with the draft network growth guidance to understand potential impacts on site-specific grid access and connection timelines.

Bottom line

High grid carbon intensity and a gas-heavy generation mix signal elevated costs and emissions risk for UK businesses. Government actions on Sizewell B, Lynemouth, and solar expansion reflect long-term decarbonisation strategy, but short-term volatility remains driven by global energy markets and weather. Energy buyers should prioritise demand flexibility, ETS readiness, and renewable procurement to navigate both price and carbon risk.