UK Energy Market Report — 31 October 2026

What we’re watching today

• Major undersea power cable receives approval – potential new import capacity.
• Smart Secure Electricity Systems (SSES) tariff interoperability code modifications for Phase 1a.
• UK ETS allocation table published for installation operators.
• Boiler Upgrade Scheme uptake data released.
• Domestic energy price indices published.

Headlines and what they mean

Major undersea power cable given green light

DESNZ has approved a new high‑capacity undersea cable linking the UK to continental Europe. The link will increase import capability, improve system resilience and could ease price spikes during periods of low domestic generation. Commercial buyers should monitor the timeline for commissioning as it may affect forward‑looking procurement strategies. source

Smart Secure Electricity Systems (SSES) tariff interoperability: code modifications for Phase 1a

DESNZ released updated code specifications to enable tariff interoperability under the SSES framework. The changes aim to simplify the rollout of flexible tariffs that can respond to real‑time grid conditions. For large energy users, this could open opportunities to lock in lower rates by participating in demand‑side response programmes. source

UK ETS Allocation Table for operators of installations

The latest UK Emissions Trading Scheme allocation table has been published, detailing free‑allowance allocations for qualifying installations. Firms that exceed the thresholds will face higher carbon costs, making emissions‑reduction projects more financially attractive. Review your carbon footprint against the new allocations to anticipate any cost impact. source

Boiler Upgrade Scheme statistics: September 2026

DESNZ released the September 2026 Boiler Upgrade Scheme statistics, showing a modest increase in participation among commercial premises. The scheme offers up to £5,000 per boiler for high‑efficiency replacements, directly reducing gas consumption and associated carbon costs. Consider whether eligible assets can be upgraded before the scheme closes later this year. source

Domestic energy price indices

The latest domestic energy price indices have been published, indicating a continued upward trend in electricity and gas tariffs for non‑domestic customers. The data reflects higher wholesale prices and the impact of carbon intensity on cost. Buyers should benchmark current contracts against these indices to assess the need for renegotiation or hedging. source

Geopolitics and global markets

Europe is reassessing its oil refinery capacity, a move that could tighten refined product supplies and lift gasoline and diesel prices across the continent. At the same time, Brent crude is edging toward $120 a barrel, adding pressure on fuel costs that feed through to electricity generation margins. European gas prices have breached €101 per MWh for the first time since 2022, reflecting tighter supply and higher demand ahead of winter. These external price dynamics reinforce the importance of flexible procurement and demand‑side strategies for UK businesses. source source source

The view from the trade desk

The grid forecast shows a high carbon intensity of 206 gCO2/kWh, driven by a 47.9% gas share. Nuclear and biomass together provide over 35% of generation, while wind contributes just over 10%. The high‑intensity outlook suggests wholesale power prices will remain elevated, making any flexibility—whether via SSES tariffs or imported power from the new undersea cable—particularly valuable.

What to do this week

• Review your exposure to the upcoming UK ETS allocation and model the cost impact of any additional allowances required.
• Engage with your supplier about SSES‑compatible tariffs to capture demand‑side response benefits.
• Assess eligibility for the Boiler Upgrade Scheme and prioritize high‑use assets for replacement.
• Benchmark your current contract against the latest domestic price indices and consider hedging where appropriate.
• Monitor the commissioning schedule of the approved undersea cable for any early‑access opportunities.

Bottom line

Regulatory activity this morning adds both cost pressures (UK ETS allocations, rising domestic price indices) and flexibility levers (SSES tariffs, new interconnector). Coupled with a high‑intensity grid and volatile global fuel markets, commercial buyers should sharpen their focus on carbon‑cost management, demand‑side participation and strategic procurement to protect margins through the winter months.